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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">LV</journal-id>
<journal-id journal-id-type="nlm-ta">Lijec Vjesn</journal-id>
<journal-title-group>
<journal-title>Lijecnicki Vjesnik</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Lijec. Vjesn.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="ppub">0024-3477</issn>
<issn pub-type="epub">1849-2177</issn>
<publisher><publisher-name>Croatian Medical Association</publisher-name></publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">LV-146-49</article-id>
<article-id pub-id-type="doi">10.26800/LV-146-1-2-7</article-id>
<article-categories><subj-group subj-group-type="heading"><subject>Review</subject></subj-group>
</article-categories>
<title-group>
<article-title>Pove&#x0107;ani lipoprotein(a) &#x2013; neovisni &#x010D;imbenik kardiovaskularnog rizika &#x2013; preporuke za odre&#x0111;ivanje i lije&#x010D;enje</article-title>
<trans-title-group xml:lang="en">
<trans-title>Elevated lipoprotein (a) &#x2013; an independent risk factor for cardiovascular disease &#x2013; recommendations for measuring and treatment</trans-title>
</trans-title-group>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4932-4212</contrib-id><name><surname>Reiner</surname><given-names>&#x017D;eljko</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Mili&#x010D;i&#x0107;</surname><given-names>Davor</given-names></name><xref ref-type="aff" rid="aff3"><sup>3</sup></xref><xref ref-type="aff" rid="aff4"><sup>4</sup></xref></contrib><contrib contrib-type="author"><name><surname>Rogi&#x0107;</surname><given-names>Dunja</given-names></name><xref ref-type="aff" rid="aff5"><sup>5</sup></xref><xref ref-type="aff" rid="aff6"><sup>6</sup></xref></contrib><contrib contrib-type="author"><name><surname>Manola</surname><given-names>&#x0160;ime</given-names></name><xref ref-type="aff" rid="aff7"><sup>7</sup></xref><xref ref-type="aff" rid="aff8"><sup>8</sup></xref></contrib><contrib contrib-type="author"><name><surname>Ru&#x017E;i&#x0107;</surname><given-names>Alen</given-names></name><xref ref-type="aff" rid="aff9"><sup>9</sup></xref><xref ref-type="aff" rid="aff10"><sup>10</sup></xref></contrib><contrib contrib-type="author"><name><surname>Canecki-Var&#x017E;i&#x0107;</surname><given-names>Silvija</given-names></name><xref ref-type="aff" rid="aff11"><sup>11</sup></xref><xref ref-type="aff" rid="aff12"><sup>12</sup></xref></contrib><contrib contrib-type="author"><name><surname>Kristi&#x0107;</surname><given-names>Ivica</given-names></name><xref ref-type="aff" rid="aff13"><sup>13</sup></xref></contrib><contrib contrib-type="author"><name><surname>Zulle</surname><given-names>Bili&#x0107;-Lidija</given-names></name><xref ref-type="aff" rid="aff14"><sup>14</sup></xref><xref ref-type="aff" rid="aff10"><sup>10</sup></xref></contrib><contrib contrib-type="author"><name><surname>&#x0110;erek</surname><given-names>Lovorka</given-names></name><xref ref-type="aff" rid="aff15"><sup>15</sup></xref></contrib><contrib contrib-type="author"><name><surname>&#x0160;eri&#x0107;</surname><given-names>Vatroslav</given-names></name><xref ref-type="aff" rid="aff16"><sup>16</sup></xref><xref ref-type="aff" rid="aff12"><sup>12</sup></xref></contrib><contrib contrib-type="author"><name><surname>Tandara</surname><given-names>Leida</given-names></name><xref ref-type="aff" rid="aff17"><sup>17</sup></xref><xref ref-type="aff" rid="aff18"><sup>18</sup></xref></contrib>
<aff id="aff1"><label>1</label>Zavod za bolesti metabolizma, Klini&#x010D;ki bolni&#x010D;ki centar Zagreb</aff>
<aff id="aff2"><label>2</label>Spomen bolnica Poljske majke i znanstveni institut, Lodz, Poljska</aff>
<aff id="aff3"><label>3</label>Klinika za bolesti srca i krvnih &#x017E;ila, Klini&#x010D;ki bolni&#x010D;ki centar Zagreb</aff>
<aff id="aff4"><label>4</label>Medicinski fakultet Sveu&#x010D;ili&#x0161;ta u Zagrebu</aff>
<aff id="aff5"><label>5</label>Klini&#x010D;ki zavod za laboratorijsku dijagnostiku, Klini&#x010D;ki bolni&#x010D;ki centar Zagreb</aff>
<aff id="aff6"><label>6</label>Farmaceutsko-biokemijski fakultet Sveu&#x010D;ili&#x0161;ta u Zagrebu</aff>
<aff id="aff7"><label>7</label>Zavod za bolesti srca i krvnih &#x017E;ila, Klini&#x010D;ka bolnica Dubrava</aff>
<aff id="aff8"><label>8</label>Stomatolo&#x0161;ki fakultet Sveu&#x010D;ili&#x0161;ta u Zagrebu</aff>
<aff id="aff9"><label>9</label>Klini&#x010D;ki bolni&#x010D;ki centar Rijeka</aff>
<aff id="aff10"><label>10</label>Medicinski fakultet Sveu&#x010D;ili&#x0161;ta u Rijeci</aff>
<aff id="aff11"><label>11</label>Klinika za internu medicinu, Klini&#x010D;ki bolni&#x010D;ki centar Osijek</aff>
<aff id="aff12"><label>12</label>Medicinski fakultet Sveu&#x010D;ili&#x0161;ta Josipa Jurja Strossmayera u Osijeku</aff>
<aff id="aff13"><label>13</label>Klinika za bolesti srca i krvnih &#x017E;ila, Klini&#x010D;ki bolni&#x010D;ki centar Split</aff>
<aff id="aff14"><label>14</label>Klini&#x010D;ki zavod za laboratorijsku dijagnostiku, Klini&#x010D;ki bolni&#x010D;ki centar Rijeka</aff>
<aff id="aff15"><label>15</label>Klini&#x010D;ki zavod za laboratorijsku dijagnostiku, Klini&#x010D;ka bolnica Dubrava</aff>
<aff id="aff16"><label>16</label>Klini&#x010D;ki zavod za laboratorijsku dijagnostiku, Klini&#x010D;ki bolni&#x010D;ki centar Osijek</aff>
<aff id="aff17"><label>17</label>Zavod za medicinsko-laboratorijsku dijagnostiku, Klini&#x010D;ki bolni&#x010D;ki centar Split</aff>
<aff id="aff18"><label>18</label>Medicinski fakultet Sveu&#x010D;ili&#x0161;ta u Splitu</aff>
</contrib-group>
<author-notes>
<corresp id="cor1">Adresa za dopisivanje: Akademik prof. dr. sc. &#x017D;eljko Reiner, dr. med., <ext-link ext-link-type="uri" xlink:href="https://orcid.org/0000-0002-4932-4212">https://orcid.org/0000-0002-4932-4212</ext-link>, Klini&#x010D;ki bolni&#x010D;ki centar Zagreb, Ki&#x0161;pati&#x0107;eva 12, 10000 Zagreb, e-po&#x0161;ta: <email xlink:href="zreiner@kbc-zagreb.hr">zreiner@kbc-zagreb.hr</email></corresp>
<fn fn-type="con">
<p content-type="fn-title">DOPRINOS AUTORA</p>
<p>K<sc>oncepcija</sc> <sc>ili</sc> <sc>nacrt</sc> <sc>rada</sc>: &#x017D;R, DM, DR, &#x0160;M, AR, IK, V&#x0160;, LT</p>
<p>P<sc>rikupljanje</sc>, <sc>analiza</sc> <sc>i</sc> <sc>interpretacija</sc> <sc>podataka</sc>: &#x017D;R, DR, AR, LBZ, V&#x0160;</p>
<p>P<sc>isanje</sc> <sc>prve</sc> <sc>verzije</sc> <sc>rada</sc>: &#x017D;R, DR, V&#x0160;</p>
<p>K<sc>riti&#x010D;ka</sc> <sc>revizija</sc>: &#x017D;R, DM, DR, &#x0160;M, SCV, IK, LBZ, L&#x0110;, V&#x0160;, LT</p>
</fn>
</author-notes>
<pub-date date-type="pub" publication-format="electronic"><month>02</month><year>2024</year></pub-date>
<pub-date date-type="pub" publication-format="print"><month>02</month><year>2024</year></pub-date>
<volume>146</volume>
<issue>1-2</issue>
<fpage>49</fpage>
<lpage>61</lpage>
<permissions>
<copyright-statement>Croatian Medical Association</copyright-statement>
<copyright-year>2024</copyright-year>
<copyright-holder>Croatian Medical Association</copyright-holder>
<license xlink:href="https://creativecommons.org/licenses/by-nc-nd/4.0/" specific-use="CC BY-NC-ND 4.0"><license-p>This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (CC BY-NC-ND) 4.0 License.</license-p></license>
</permissions>
<abstract>
<title>SA&#x017D;ETAK</title>
<p>Smjernice me&#x0111;unarodnih stru&#x010D;nih dru&#x0161;tava ukazuju da je povi&#x0161;ena koncentracija lipoproteina(a) [Lp(a)] u krvi dugoro&#x010D;ni neovisni &#x010D;imbenik rizika za razvitak aterosklerotske kardiovaskularne bolesti (ASKVB), kao i za kalcifikacijsku stenozu aortnih zalistaka. Cilj je ovog &#x010D;lanka koji je rezultat konsenzusa nacionalnih stru&#x010D;njaka iz tog podru&#x010D;ja predstaviti najnovije spoznaje o dijagnostici i sada&#x0161;njim mogu&#x0107;nostima lije&#x010D;enja bolesnika s povi&#x0161;enom koncentracijom Lp(a) u krvi koje su u ovom trenutku skromne, ali i nazna&#x010D;iti budu&#x0107;e mogu&#x0107;nosti lije&#x010D;enja koje su na pomolu. Zaklju&#x010D;ak koji se mo&#x017E;e postaviti na temelju dosada&#x0161;njih spoznaja upu&#x0107;uje da postoji neposredna korist za bolesnike u mjerenju koncentracije Lp(a), &#x010D;ak i ako potpuno u&#x010D;inkovito farmakolo&#x0161;ko lije&#x010D;enje jo&#x0161; nije dostupno. Mjerenje Lp(a) olak&#x0161;ava br&#x017E;u i pouzdaniju identifikaciju bolesnika s visokim kardiovaskularnim rizikom i bolje upravljanje tim rizikom, odnosno upu&#x0107;uje na potrebu intenzivnijeg smanjivanja i lije&#x010D;enja ostalih &#x010D;imbenika rizika za ASKVB ako je Lp(a) zna&#x010D;ajnije pove&#x0107;an. Izra&#x017E;avanje koncentracije Lp(a) preporu&#x010D;uje se u nmol/L izmjerene metodama kalibriranim kalibratorima &#x010D;ija je koncentracija izra&#x017E;ena u nmol/L.</p>
</abstract>
<trans-abstract xml:lang="en">
<title>SUMMARY</title>
<p>The guidelines of international professional societies indicate that elevated concentration of lipoprotein(a) [Lp(a)] in the blood is a long-term independent risk factor for the development of atherosclerotic cardiovascular disease (ASCVD), as well as for calcification stenosis of the aortic valves. The aim of this document which was produced as a consensus document of the authors who are national experts in the field is to present the latest knowledge about diagnostics and current treatment options for patients with elevated Lp(a) concentrations in the blood, which are modest at the moment, but also to indicate future treatment options that are on the horizon. The conclusion that can be made on the basis of current knowledge indicates that there is an immediate benefit for patients in measuring the concentration of Lp(a), even if fully effective pharmacological treatment is not yet available. Measurement of Lp(a) facilitates faster and more reliable identification of patients with high cardiovascular risk and better management of that risk, i.e. it indicates the need for more intensive reduction and treatment of other risk factors for ASCVD if Lp(a) is significantly increased. It is recommended to express the concentration of Lp(a) in nmol/L measured by methods calibrated with calibrators whose concentration is expressed in nmol/L.</p>
</trans-abstract>
<kwd-group kwd-group-type="author"><kwd>Deskriptori KARDIOVASKULARNE BOLESTI &#x2013; epidemiologija, etiologija, prevencija</kwd><kwd>ATEROSKLEROZA &#x2013; epidemologija, etiologija, prevencija</kwd><kwd>SEKUNDARNA PREVENCIJA</kwd><kwd>LIPOPROTEIN(a)- genetika, u krvi</kwd><kwd>STENOZA AORTNIH ZALISTAKA &#x2013; epidemiologija, etiologija, prevencija</kwd><kwd>KALCINOZA</kwd><kwd>LDL KOLESTEROL &#x2013; u krvi</kwd><kwd>HIPERLIPIDEMIJE &#x2013; farmakoterapija</kwd><kwd>PCSK9 INHIBITORI &#x2013; terapijska uporaba</kwd><kwd>MALA INTERFERIRAJU&#x0106;A RNK &#x2013; terapijska uporaba</kwd><kwd>STATINI &#x2013; terapijska uporaba</kwd><kwd>&#x010C;IMBENICI RIZIKA</kwd></kwd-group>
<kwd-group kwd-group-type="translator" xml:lang="en"><title>Descriptors </title><kwd>CARDIOVASCULAR DISEASES &#x2013; epidemiology,etiology, prevention and control</kwd><kwd>ATHEROSCLEROSIS &#x2013; epidemiology,etiology, prevention and control</kwd><kwd>SECONDARY PREVENTION</kwd><kwd>LIPOPROTEIN(a) &#x2013; blood, genetics</kwd><kwd>AORTIC VALVE STENOSIS &#x2013; epidemiology,etiology, prevention and control</kwd><kwd>CALCINOSIS</kwd><kwd>CHOLESTEROL, LDL &#x2013; u krvi</kwd><kwd>HYPERLIPIDEMIAS &#x2013; drug therapy</kwd><kwd>PCSK9 INHIBITORS &#x2013; therapeutic use</kwd><kwd>RNA, SMALL INTERFERING &#x2013; therapeutic use</kwd><kwd>HYDROXYMETHYLGLUTARYL-COA REDUCTASE INHIBITORS &#x2013; therapeutic use</kwd><kwd>RISK FACTORS</kwd></kwd-group>
</article-meta>
</front>
<body>
<p>Lipoprotein(a) je lipoproteinska &#x010D;estica jedinstvene strukture koja osim apolipoproteina B100 (apoB100) dodatno sadr&#x017E;i i specifi&#x010D;an apolipoprotein (a) &#x2013; apo(a). (<xref ref-type="bibr" rid="r1"><italic>1</italic></xref>) To je &#x010D;estica promjera &lt;70 nm koja je vrlo nalik &#x010D;estici lipoproteina niske gusto&#x0107;e (LDL), a sadr&#x017E;i podjednaku koli&#x010D;inu kolesterola. Lp(a) mo&#x017E;e slobodno prolaziti kroz endotelnu barijeru gdje se mo&#x017E;e, sli&#x010D;no LDL &#x010D;esticama, zadr&#x017E;ati u subendotelnom prostoru, tj. unutar arterijske stijenke i potaknuti nastanak ateroskleroti&#x010D;nih nakupina te posljedi&#x010D;no ateroskleroti&#x010D;ne kardiovaskularne bolesti (ASKVB). (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>) Gotovo 90% koncentracije Lp(a) genski je uvjetovano i to na LPA lokusu, s izra&#x017E;enim varijacijama u raznim populacijama. (<xref ref-type="bibr" rid="r3"><italic>3</italic></xref>, <xref ref-type="bibr" rid="r4"><italic>4</italic></xref>) Postoji vi&#x0161;e od 40 izoformi Lp(a). (<xref ref-type="bibr" rid="r5"><italic>5</italic></xref>) Budu&#x0107;i da je apo(a) dobrim dijelom homologan plazminogenu, Lp(a) kompetitivnom inhibicijom djeluje i protrombogeno pa time doprinosi procesu aterotromboze.</p>
<p>Epidemiolo&#x0161;ka opservacijska ispitivanja upu&#x0107;uju prili&#x010D;no nedvojbeno na povezanost izme&#x0111;u povi&#x0161;enog Lp(a) i pove&#x0107;anog rizika od ASKVB-a te kalcifikacijske stenoze aortnih zalistaka (engl. AVS). Tako pove&#x0107;ani Lp(a) predstavlja 3 &#x2013; 4 puta pove&#x0107;ani rizik akutnog infarkta miokarda, 3 puta ve&#x0107;i rizik aortne stenoze, 1,6 puta ve&#x0107;i rizik ishemijskog mo&#x017E;danog udara, 1,4 puta ve&#x0107;i rizik periferne arterijske bolesti, 1,5 puta ve&#x0107;i rizik kardiovaskularne smrtnosti i 1,2 puta ve&#x0107;i rizik ukupne smrtnosti. (<xref ref-type="bibr" rid="r6"><italic>6</italic></xref>) Nedavna genetska ispitivanja potvrdila su ovu povezanost. Europsko dru&#x0161;tvo za aterosklerozu (EAS) smatra da razina Lp(a) od 50 mg/dL (~125 nmol/L) ili vi&#x0161;a predstavlja pove&#x0107;ani kardiovaskularni rizik. Takve vrijednosti ima otprilike 20% do 25% globalne populacije. (<xref ref-type="bibr" rid="r7"><italic>7</italic></xref>) Lp(a) je, dakle, neovisni, nasljedni, uzro&#x010D;ni &#x010D;imbenik rizika za ASKVB.</p>
<p>Cijeli niz svjetskih stru&#x010D;nih dru&#x0161;tava na&#x010D;inio je klini&#x010D;ke smjernice koje preporu&#x010D;uju odre&#x0111;ivanje Lp(a) (<xref ref-type="table" rid="t1">Table 1</xref>). (<xref ref-type="bibr" rid="r8"><italic>8</italic></xref>&#x2013;<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>) Op&#x0107;enito uzev&#x0161;i, postoji zna&#x010D;ajna uskla&#x0111;enost izme&#x0111;u svih tih razli&#x010D;itih smjernica jer sve preporu&#x010D;uju odre&#x0111;ivanje Lp(a) kao dio klini&#x010D;ke procjene visokorizi&#x010D;nih osoba. Me&#x0111;utim, ve&#x0107;ina smjernica preporu&#x010D;uje mjerenje koncentracije Lp(a) jednom u &#x017E;ivotu svake osobe s obzirom na to da koncentracija Lp(a) ostaje uglavnom stabilna tijekom &#x017E;ivota. (<xref ref-type="bibr" rid="r12"><italic>12</italic></xref>) Odre&#x0111;ivanje koncentracije Lp(a) koristi za:</p>
<list id="L1" list-type="simple"><list-item><p>identifikaciju pojedinaca s vrlo visokim naslije&#x0111;enim koncentracijama Lp(a) u krvi;</p></list-item>
<list-item><p>odre&#x0111;ivanje obiteljskog rizika;</p></list-item>
<list-item><p>klasifikaciju ljudi koji su na granici izme&#x0111;u umjerenoga i visokoga kardiovaskularnog rizika;</p></list-item>
<list-item><p>optimiziranje lije&#x010D;enja drugih &#x010D;imbenika rizika ASKVB-a radi smanjenja ukupnog rizika za ASKVB.</p></list-item></list>
<table-wrap id="t1" position="float">
<label>Table 1</label><caption><title>Recommendations of professional societies on the determination of lipoprotein(a)</title>
</caption>
<table frame="hsides" rules="groups">
<col width="100%"/>
<thead>
<tr>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.75pt; border-top: solid 0.75pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">2018 American College of Cardiology / American Heart Association Cholesterol Guidelines (<xref ref-type="bibr" rid="r8"><italic>8</italic></xref>)</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Kada ASKVB nije obja&#x0161;njena glavnim op&#x0107;epriznatim &#x010D;imbenicima rizika (pove&#x0107;ani LDL-kolesterol, aterijska hipertenzija, pu&#x0161;enje...)/ in cases where ASCVD is not explained by the major generally recognized risk factors (elevated LDL-C level, arterial hypertension, cigarette smoking&#x2026;)<break/>Kada postoji obiteljska anamneza preuranjene ASKVB / in cases with a family history of premature ASCVD<break/>Kada su razine Lp(a) ve&#x0107;e od 125 nmol/L (~50 mg/dL) &#x2013; to se smatra &#x010D;imbenikom pove&#x0107;anog rizika za ASKVB / in cases with Lp(a) &#x2265;125 nmol/L (~50 mg/dL) &#x2014; considered a risk-enhancing factor for ASCVD</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">2019 National Lipid Association Scientific Statement (<xref ref-type="bibr" rid="r9"><italic>9</italic></xref>)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Osobna ili obiteljska anamneza prerane ASKVB / a personal or family history of premature ASCVD<break/>Osobna ili obiteljska anamneza izrazite hiperkolesterolemije (LDL-kolesterol &gt;190 mg/dL ili &gt;4,9 mmol/L) ili sumnja na porodi&#x010D;nu hiperkolesterolemiju / a personal or family history of primary severe hypercholesterolemia (LDL-C &gt;190 mg/dL or &gt;4.9 mmol/L) or suspected familial hypercholesterolemia (FH)<break/>Obiteljska anamneza povi&#x0161;enog Lp(a) / a family history of elevated Lp(a)<break/>Grani&#x010D;ni (5% do 7,4%) i srednji (7,5% do 19,9%) 10-godi&#x0161;nji rizik od ASKVB (kod kojih valja razmotriti lije&#x010D;enje statinima) / borderline (5%&#x2013;7.4%) and intermediate (7.5%&#x2013;19.9%) 10-year ASCVD risk (the initiation of statin therapy to be considered in these cases)<break/>U bolesnika s vrlo visokim rizikom za ASKVB (kod kojih valja razmotriti lije&#x010D;enje inhibitorima PCSK9)<sup>b</sup>/ individuals at very-high-risk of ASCVD (the initiation of PCSK9 inhibitor therapy to be considered in these cases)<sup>b</sup><break/>Djelomi&#x010D;an odgovor na terapiju za sni&#x017E;avanje LDL-kolesterola / partial response to LDL-C lowering therapy<break/>Rekurentna ili progresivna ASKVB, unato&#x010D; optimalnoj terapiji za sni&#x017E;avanje kolesterola/ recurrent or progressive ASCVD, despite optimal lipid-lowering therapy<break/>Kalcificirana stenoza aortne valvule / calcific aortic valve stenosis<break/>Razine Lp(a) od 100 nmol/L (~50 mg/dL) smatraju se &#x010D;imbenikom pove&#x0107;anog rizika za ASKVB/ Lp(a) &#x2265;100 nmol/L (~50 mg/dL) considered a risk-enhancing factor for ASCVD</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">2019 European Society of Cardiology / European Atherosclerosis Society Guidelines for the Management of Dyslipidaemias (<xref ref-type="bibr" rid="r2"><italic>2</italic></xref>)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Izmjeriti barem jednom u &#x017E;ivotu koncentraciju Lp(a) svake odrasle osobe/ Lp(a) measurement should be considered at least once in each adult person&#x2019;s lifetime<break/>Razine Lp(a) &gt;430 nmol/L (&gt;180 mg/dL) smatraju se vrlo visokim rizikom za ASKVB/ Lp(a) &gt;430 nmol/L (&gt;180 mg/dL) considered as very high risk for ASCVD</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">2019 HEART UK Consensus Statement (<xref ref-type="bibr" rid="r10"><italic>10</italic></xref>)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Osobna ili obiteljska anamneza preuranjene ASKVB / a personal or family history of premature ASCVD<break/>Srodnici u prvom koljenu s razinama Lp(a) u serumu &gt;200 nmol/L / first-degree relatives who have Lp(a) levels &gt;200 nmol/L<break/>Porodi&#x010D;na hiperkolesterolemija ili druge genske dislipidemije / familial hypercholesterolemia or other types of genetic dyslipidemia<break/>Kalcificirana stenoza aortne valvule / calcific aortic valve stenosis<break/>Grani&#x010D;no pove&#x0107;an (ali &lt;15%) 10-godi&#x0161;nji rizik za ASKVB / borderline increased (but &lt;15%) 10-year risk of ASCVD<break/>Razine Lp(a) &gt;90 nmol/L smatraju se visokim rizikom za ASKVB / Lp(a) &gt;90 nmol/L considered as high risk for ASCVD</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">2020 Endocrine Society Lipid Management Guidelines (<xref ref-type="bibr" rid="r11"><italic>11</italic></xref>)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.75pt">Obiteljska anamneza preuranjene ASKVB ili visokog Lp(a) / a family history of premature ASCVD or high Lp(a)<break/>Osobna anamneza ASKVB-a / a personal history of ASCVD<break/>Razine Lp(a) &gt;125 nmol/L (~50 mg/dL) smatraju se &#x010D;imbenikom pove&#x0107;anog rizika za ASKVB/ Lp(a) &gt;125 nmol/L (~50 mg/dL) considered a risk-enhancing factor for ASCVD</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.75pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">2021 Canadian Guidelines for the Management of Dyslipidemia (<xref ref-type="bibr" rid="r12"><italic>12</italic></xref>)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Izmjerite barem jednom u &#x017E;ivotu koncentraciju Lp(a) svake odrasle osobe (univerzalni probir)/ Lp(a) measurement should be done at least once in each adult person&#x2019;s lifetime (universal screening)<break/>Razine Lp(a) &gt;100 nmol/L (~50 mg/dL) smatraju se visokim rizikom za ASKVB/ Lp(a) &gt;100 nmol/L (~50 mg/dL) considered as high risk for ASCVD</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">2022 European Atherosclerosis Society lipoprotein(a) [Lp(a)] consensus statement (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.75pt">Lp(a) treba izmjeriti barem jednom kod odraslih kako bi se otkrili oni s visokim kardiovaskularnim rizikom. / Lp(a) should be measured at least once in adults to identify those with high cardiovascular risk.<break/>Kod ishemijskog mo&#x017E;danog udara ili osoba s obiteljskom anamnezom preuranjene ASKVB-a ili visokog Lp(a) i bez drugih prepoznatljivih &#x010D;imbenika rizika, preporu&#x010D;uje se na&#x010D;initi probir u mladosti. / Screening is also recommended in youth with a history of ischaemic stroke or a family history of premature ASCVD or high Lp(a) and no other identifiable risk factors.<break/>Kaskadno testiranje na povi&#x0161;eni Lp(a) preporu&#x010D;uje se kod porodi&#x010D;ne hiperkolesterolemije, kod obiteljske anamneze (vrlo) visokog Lp(a) i osobne ili obiteljske anamneze ASKVB-a. / Cascade testing for high Lp(a) is recommended in the settings of familial hypercholesterolemia (FH), family history of (very) high Lp(a), and personal or family history of ASCVD.<break/>Laboratoriji bi trebali koristiti test za odre&#x0111;ivanje Lp(a) koji je neosjetljiv na apo(a) izoforme i u skladu s preporukama. / Laboratories should use an Lp(a) assay that is insensitive to apo(a) isoform and traceable to official reference materials.<break/>Mjerenje Lp(a) treba biti u molarnim jedinicama ako je dostupno. Ako ne, trebale bi se koristiti jedinice u kojima je test kalibriran. / Measurement of Lp(a) should be in molar units if available. If not, the units in which the assay is calibrated should be used for reporting.<break/>Umjesto apsolutnih vrijednosti, klini&#x010D;ke smjernice trebale bi razmotriti upotrebu pragova rizika sa &#x201E;sivim&#x201C; zonama (npr. 30&#x2013;50 mg/dL ili 75&#x2013;125 nmol/L) koji bi ili uklju&#x010D;ivali (&#x2265;50 mg/dL; ~125 nmol/L) ili isklju&#x010D;ivali (&lt;30 mg/dL; ~75 nmol/L) pove&#x0107;ani kardiovaskularni rizik. / Rather than absolute values, clinical guidelines should consider using risk thresholds with &#x2018;grey&#x2019; zones (e.g., 30&#x2013;50 mg/dL or 75&#x2013;125 nmol/L) to either rule-in (&#x2265;50 mg/dL; ~125 nmol/L) or rule-out (&lt;30 mg/dL; ~75 nmol/L) cardiovascular risk.<break/>Povi&#x0161;eni Lp(a) je &#x010D;imbenik rizika &#x010D;ak i pri vrlo niskoj koncentraciji LDL-kolesterola. / Elevated Lp(a) is a risk factor even at very low LDL-C concentration.<break/>Rizik od ishemijskog mo&#x017E;danog udara i zatajivanja srca pove&#x0107;ava se s vi&#x0161;im vrijednostima Lp(a) od onih povezanih s rizikom od infarkta miokarda i stenoze aortne valvule. / The risk of ischaemic stroke and heart failure increases at higher Lp(a) levels than those associated with the risk of myocardial infarction and aortic valve stenosis (AVS).<break/>U djece je Lp(a) &gt;30 mg/dL (&gt;75 nmol/L) povezan s pove&#x0107;anim rizikom od (ponavljaju&#x0107;eg) ishemijskog mo&#x017E;danog udara. / In children, an Lp(a) &gt;30 mg/dL (&gt;75 nmol/L) is associated with increased risk of (recurrent) arterial ischaemic stroke.<break/>Lp(a) nije &#x010D;imbenik rizika za vensku tromboemboliju. / Lp(a) is not a risk factor for venous thromboembolism.<break/>U nedostatku specifi&#x010D;nih lijekova za sni&#x017E;avanje povi&#x0161;enog Lp(a), preporu&#x010D;uje se rana regulacija ostalih &#x010D;imbenika rizika za ASKVB osobama s povi&#x0161;enim Lp(a), uzimaju&#x0107;i u obzir njihov apsolutni ukupni kardiovaskularni rizik i razinu Lp(a). / In the absence of specific Lp(a)-lowering therapies, early risk factor management is recommended for individuals with elevated Lp(a), taking into account their absolute global cardiovascular risk and Lp(a) level.<break/>Me&#x0111;u bolesnicima s visokim vrijednostima Lp(a) svi &#x010D;imbenici kardiovaskularnog rizika trebali bi se sveobuhvatno rje&#x0161;avati sukladno preporukama smjernica. / Among patients with high Lp(a), all cardiovascular risk factors should be comprehensively addressed as per guideline recommendations.<break/>Afereza lipoproteina mo&#x017E;e se rabiti kao metoda lije&#x010D;enja u bolesnika s vrlo visokim Lp(a) i progresivnom ASKVB koja postoji unato&#x010D; optimalnom upravljanju &#x010D;imbenicima rizika. / Lipoprotein apheresis can be considered in patients with very high Lp(a) and progressive cardiovascular disease despite optimal management of risk factors.<break/>Niacin se ne preporu&#x010D;uje za sni&#x017E;avanje Lp(a). / Niacin is not recommended for Lp(a) lowering.</td>
</tr>
</tbody>
</table><table-wrap-foot>
<p>Kratice / Abbrevitiaons: ASKVB, aterosklerotska kardiovaskularna bolest / atherosclerotic cardiovascular disease; Lp(a), lipoprotein(a)</p>
<p>a&#x2002;Mla&#x0111;i od 55 godina kod mu&#x0161;karaca i mla&#x0111;i od 65 godina kod &#x017E;ena / Younger than 55 years (men) and younger than 65 years (women); b&#x2002;Pojedinci s vi&#x0161;e velikih doga&#x0111;aja ASKVB-a ili jednim velikim doga&#x0111;ajem ASKVB-a i vi&#x0161;estruka stanja visokog rizika / Subjects with more major atherosclerotic cardiovascular disease events or one event and more high risk factors; c&#x2002;Mla&#x0111;i od 60 godina / Younger than 60 years</p>
</table-wrap-foot></table-wrap>
<p>Budu&#x0107;i da postoje i negenetski &#x010D;imbenici (<xref ref-type="table" rid="t2">Table 2</xref>) koji mogu utjecati na koncentraciju Lp(a), kao &#x0161;to su primjerice bolesti jetre, akutne infekcije, kroni&#x010D;ne bolesti bubrega, dijabetes, u pojedinim slu&#x010D;ajevima potrebno je ipak ponoviti mjerenje Lp(a). (<xref ref-type="bibr" rid="r7"><italic>7</italic></xref>, <xref ref-type="bibr" rid="r14"><italic>14</italic></xref>)</p>
<table-wrap id="t2" position="float">
<label>Table 2</label><caption><title>Non-genetic influences on lipoprotein(a) concentration</title>
</caption>
<table frame="hsides" rules="groups">
<col width="44.38%"/>
<col width="55.62%"/>
<thead>
<tr>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.75pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Stanje/Intervencija / Condition/intervention</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Utjecaj na vrijednost Lp(a) / Effect on Lp(a)</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="middle" colspan="2" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">Na&#x010D;in &#x017E;ivota / Lifestyle</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Zamjena zasi&#x0107;enih masnih kiselina s ugljikohidratima i nezasi&#x0107;enim masnim kiselinama / Replacement of dietary saturated fat with carbohydrate or unsaturated fat</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Pove&#x0107;anje za oko 10 &#x2013; 15% / Increase by about 10-15%</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Dijeta s niskim udjelom ugljikohidrata i zasi&#x0107;enim masnim kiselinama / Low carbohydrate diet high in saturated fat</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Smanjenje za oko 15% / Decrease by about 15%</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Post / Fasting</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Nikakav / None</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Fizi&#x010D;ka aktivnost / Physical activity</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Nikakav/minimalan / None/minimal</td>
</tr>
<tr>
<td valign="middle" colspan="2" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">Hormoni i s hormonskim poreme&#x0107;ajima povezana stanja / Hormones and related conditions</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Hipertireoza / Hyperthyroidism</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Smanjenje; 20 &#x2013; 25% pove&#x0107;anje s tireostaticima ili terapijom radioaktivnim jodom / Decrease; 20-25% increase with thyrostatic treatment or radioactive iodine therapy</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Hipotireoza / Hypothyroidism</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Pove&#x0107;anje; 5 &#x2013; 20% smanjenje uz nadomjesnu terapiju<break/>/ Increase; 5-20% decrease with replacement therapy</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Hormoni rasta / Growth hormones</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Dvostruko pove&#x0107;anje uz terapiju / Double increase with therapy</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Endogeni spolni hormoni / Endogenous sex hormones</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Nikakav/minimalan / None/minimal</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Trudno&#x0107;a / Pregnancy</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Dvostruko pove&#x0107;anje / Double increase</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Menopauza / Menopause</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Nikakav/minimalan / None/minimal</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Postmenopauzalana hormonska nadomjesna terapija<break/>/ Postmenopausal hormone replacement therapy</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Smanjenje za oko 25% / About 25% decrease</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Kirur&#x0161;ka ili biokemijska kastracija u mu&#x0161;karaca<break/>/ Surgical or biochemical castration in men</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Malo pove&#x0107;anje / Small increase</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Ovarijektomija, antagonisti estrogenskih receptora<break/>/ Ovariectomy, oestrogen receptor antagonist</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Malo pove&#x0107;anje / Small increase</td>
</tr>
<tr>
<td valign="middle" colspan="2" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">Kroni&#x010D;ne bubre&#x017E;ne bolesti / Chronic kidney disease</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Nefrotski sindrom / Nephrotic syndrome</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Pove&#x0107;anje za 3 &#x2013; 5 puta (u odnosu na kontrole) / 3&#x2013;5&#x00D7; increase (vs. control)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Bolesnici na peritonejskoj dijalizi<break/>/ Peritoneal dialysis patients</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Dvostruko pove&#x0107;anje (u odnosu na kontrole) / Double increase (vs. control)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Lije&#x010D;enje hemodijalizom i kroni&#x010D;na bubre&#x017E;na bolest<break/>/ Haemodialysis treatment and chronic kidney disease</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Porast &#x010D;estica s velikim apo(a) izoformama<break/>/ Increase in large apo(a) isoform carriers</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Transplantacija bubrega / Kidney transplantation</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Normalizacija vrijednosti / Normalization of levels</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">O&#x0161;te&#x0107;enje jetre / Liver impairment</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Smanjenje ovisno o uzroku / Decrease, depending on cause</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Transplantacija jetre / Liver transplantation</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Promjene izoforme apo(a) u odnosu na izoformu donora, s odgovaraju&#x0107;im promjenama u razinama Lp(a) / Changes of apo(a) isoform in relation to isoform of the donor, with corresponding changes in Lp(a) levels</td>
</tr>
<tr>
<td valign="middle" colspan="2" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">Upala i povezana stanja / Inflammation and related conditions</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Te&#x0161;ka, po &#x017E;ivot opasna akutna stanja (sepsa, opekline)<break/>/ Severe, life-threatening acute-phase conditions (sepsis, severe burns)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Smanjenje / Decrease</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Neka upalna stanja / Some inflammatory conditions</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Pove&#x0107;anje / Increase</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Tocilizumab (inhibitor interleukina-6)<break/>/ Tocilizumab (inteleukin-6-inhibitor)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">~30 &#x2013; 40% smanjenje / Decrease by about 30-40%</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Inhibitori proteaze, antiretrovirusna terapija<break/>/ Protease inhibitors, antiretroviral therapy</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Pove&#x0107;anje / Increase</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Statini / Statins</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Mogu blago pove&#x0107;ati vrijednosti Lp(a) / May slightly increase Lp(a)</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt" scope="row">Zaga&#x0111;enje zraka (fine &#x010D;estice, PM2,5)<break/>/ Air pollution (fine particulate matter, PM2.5)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.75pt">Blago pove&#x0107;anje / Slight increase</td>
</tr>
</tbody>
</table><table-wrap-foot>
<p>Tablica prilago&#x0111;ena prema / Table adapted from: Kronenberg F, et al. / et al. Eur Heart J. 2022;43:3925&#x2013;3946.</p>
</table-wrap-foot></table-wrap>
<sec sec-type="other1">
<title>Patofiziologija Lp(a)</title>
<p>Lp(a) poti&#x010D;e razvoj ASKVB-a i kalcificiranu stenozu aortnog zaliska (AVS) putem &#x010D;etiriju mehanizama: poticanja vaskularne upale, aterogeneze, kalcifikacije i trombogeneze. Lp(a) ulazi u intimu arterija gdje se oksidira, &#x0161;to rezultira stvaranjem reaktivnih kisikovih spojeva koje izazivaju upalu putem poja&#x010D;ane propusnosti endotela, dijapedezu, proizvodnju citokina, apoptozu i remodeliranje vaskularne stijenke. Makrofagi unose u sebe oksidirani LDL dio lipoproteina(a), pretrpavaju se kolesterolom iz Lp(a) &#x010D;estica, te se pretvaraju u tzv. pjenaste stanice i poti&#x010D;u stvaranje aterosklerotskog plaka. Lp(a) je jedini lipoprotein koji sadr&#x017E;i apoB i oksidirane fosfolipide koji se talo&#x017E;e na o&#x0161;te&#x0107;enim stijenkama arterija i aortnim zaliscima kada su koncentracije Lp(a) u plazmi visoke, uzrokuje endotelnu disfunkciju, nakupljanje lipida, kalcifikaciju i upalu. Povi&#x0161;ene razine Lp(a) mogu imati protrombotski/antifibrinoliti&#x010D;ki u&#x010D;inak budu&#x0107;i da apolipoprotein(a) nalikuje i plazminogenu i plazminu, ali nema fibrinoliti&#x010D;ku aktivnost, ili mogu ubrzati aterosklerozu jer je &#x010D;estica Lp(a) bogata kolesterolom, ili pak mogu uzrokovati oboje. (<xref ref-type="bibr" rid="r3"><italic>3</italic></xref>, <xref ref-type="bibr" rid="r7"><italic>7</italic></xref>)</p>
</sec>
<sec sec-type="other2">
<title>Lp(a) u primarnoj i sekundarnoj prevenciji</title>
<p>U primarnoj prevenciji povi&#x0161;eni Lp(a) povezuje se s ishemijskim mo&#x017E;danim udarom, infarktom miokarda i zatajivanjem srca kao dio nelije&#x010D;ene ASKVB, ali i sa stenozom aortnog zaliska (engl. AVS) te kardiovaskularnom smrtno&#x0161;&#x0107;u i ukupnom smrtno&#x0161;&#x0107;u (<xref ref-type="fig" rid="f1">Figure 1</xref>, <xref ref-type="table" rid="t3">Table 3</xref>). Koncentracije Lp(a) u plazmi iznad 75. percentile pove&#x0107;avaju rizik od stenoze aortnog zaliska i infarkta miokarda dok su jo&#x0161; vi&#x0161;e koncentracije (&gt;90. percentile) povezane s pove&#x0107;anim rizikom od zatajivanja srca. Rizik od kardiovaskularne smrtnosti i ishemijskog mo&#x017E;danog udara pove&#x0107;ava se samo kad su koncentracije vrlo visoke (&gt;95 percentile). (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>) U primarnoj prevenciji klju&#x010D;no je napraviti individualnu procjenu &#x010D;imbenika rizika za obolijevanje od ASKVB-a uklju&#x010D;uju&#x0107;i ranu pojavu ASKVB-a u obitelji te misliti na subklini&#x010D;ku aterosklerozu. (<xref ref-type="bibr" rid="r14"><italic>14</italic></xref>)</p>
<fig id="f1" position="float" fig-type="figure"><label>Figure 1</label><caption><p>Risk of clinical outcomes with Lp(a) concentration Apsolutni i relativni rizici od stenoze aortnog zaliska, ishemijskog mo&#x017E;danog udara, infarkta miokarda i zatajivanja srca u op&#x0107;oj populaciji kao funkcija pove&#x0107;anja koncentracije Lp(a) u plazmi. Gornji grafikon prikazuje apsolutni rizik na 10.000 osoba-godina, a donji grafikoni prikazuju omjere rizika kao punu crvenu liniju s 95% intervalima pouzdanosti prikazanim kao isprekidane crne linije; kada ni&#x017E;i interval pouzdanosti od 95% vi&#x0161;e ne preklapa referentnu vrijednost omjera rizika od 1,0 za srednju koncentraciju Lp(a) rizik je zna&#x010D;ajno povi&#x0161;en. Na temelju podataka 70.286 bijelaca iz op&#x0107;ega populacijskog ispitivanja provedenog u Kopenhagenu s medijanom pra&#x0107;enja od 7,4 godine. / Absolute and relative risks of aortic valve stenosis, ischemic stroke, myocardial infarction and heart failure in general population as a function of increased Lp(a) plasma concentration. Top figure shows the absolute risk per 10 000 person/years, and lower figures show hazard ratios as solid red line, with 95% confidence intervals as dotted black lines;when the lower 95% confidence interval no longer overlaps the hazard ratios reference values of 1.0 for the median Lp(a) plasma concentration, risk is significantly increased. Data are based on 70 286 white subjects in the Copenhagen General Population Study with a median 7.4 years of follow-up. Prilago&#x0111;eno prema / Adapted from: Kronenberg F, et al. / et al. Eur Heart J. 2022;43:3925&#x2013;46.</p></caption><graphic xlink:href="LV-146-49-f1"></graphic></fig>
<table-wrap id="t3" position="float">
<label>Table 3</label><caption><title>Summary of epidemiological and genetic evidence for the association of lipoprotein(a) concentration with clinical outcomes</title>
</caption>
<table frame="hsides" rules="groups">
<col width="20.16%"/>
<col width="11.82%"/>
<col width="11.83%"/>
<col width="15.97%"/>
<col width="11.83%"/>
<col width="14.19%"/>
<col width="14.2%"/>
<thead>
<tr>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.75pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt"></th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Ispitivanje parova ili presje&#x010D;no ispitivanje<break/>/ Case control or cross-sectional studies</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Velika prospektivna opservacijska ispitivanja<break/>/ Large prospective observational studies</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Metaanalize velikih prospektivnih opservacijskih ispitivanja<break/>/ Meta-analyses of prospective observational studies</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Velika svegenomska ispitivanja asocijacije<break/>/ Large genome-wide association studies</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Velika mendelijanska randomizacijska ispitivanja<break/>/ Large Mendelian randomization studies</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Klini&#x010D;ka ispitivanja lije&#x010D;enja za sni&#x017E;avanje Lp(a)<break/>/ Clinical trials of Lp(a)-lowering therapy</th>
</tr>
</thead>
<tbody>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Infarkt miokarda / Myocardial infarction (<xref ref-type="bibr" rid="r15"><italic>15</italic></xref>&#x2013;<xref ref-type="bibr" rid="r21"><italic>21</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Ispitivanje u tijeku<break/>/ Trial ongoing</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Angina pektoris/koronarna stenoza<break/>/ Angina pectoris/coronary stenosis (<xref ref-type="bibr" rid="r22"><italic>22</italic></xref>&#x2013;<xref ref-type="bibr" rid="r24"><italic>24</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Nedostaje podataka<break/>/ Data lacking</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">&#x2013;</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Ishemijski mo&#x017E;dani udar<break/>/ Ischemic stroke (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>, <xref ref-type="bibr" rid="r18"><italic>18</italic></xref>, <xref ref-type="bibr" rid="r20"><italic>20</italic></xref>, <xref ref-type="bibr" rid="r22"><italic>22</italic></xref>, <xref ref-type="bibr" rid="r25"><italic>25</italic></xref>&#x2013;<xref ref-type="bibr" rid="r30"><italic>30</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Ispitivanje u tijeku<break/>/ Trial ongoing</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Stenoza karotida<break/>/ Carotid stenosis (<xref ref-type="bibr" rid="r22"><italic>22</italic></xref>, <xref ref-type="bibr" rid="r23"><italic>23</italic></xref>, <xref ref-type="bibr" rid="r31"><italic>31</italic></xref>, <xref ref-type="bibr" rid="r32"><italic>32</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Nedostaje podataka<break/>/ Data lacking</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">&#x2013;</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Periferna arterijska bolest<break/>/ Peripheral arterial disease (<xref ref-type="bibr" rid="r20"><italic>20</italic></xref>, <xref ref-type="bibr" rid="r22"><italic>22</italic></xref>, <xref ref-type="bibr" rid="r23"><italic>23</italic></xref>, <xref ref-type="bibr" rid="r33"><italic>33</italic></xref>&#x2013;<xref ref-type="bibr" rid="r35"><italic>35</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Nedostaje podataka<break/>/ Data lacking</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">&#x2013;</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Stenoza aortnog zaliska<break/>/ Aortic valve stenosis (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>, <xref ref-type="bibr" rid="r36"><italic>36</italic></xref>&#x2013;<xref ref-type="bibr" rid="r45"><italic>45</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Nedostaje podataka<break/>/ Data lacking</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">&#x2013;</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Zatajivanje srca<break/>/ Heart failure (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>, <xref ref-type="bibr" rid="r44"><italic>44</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Nedostaje podataka<break/>/ Data lacking</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">&#x2013;</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Kardiovaskularna smrtnost<break/>/ Cardiovascular mortality (<xref ref-type="bibr" rid="r16"><italic>16</italic></xref>, <xref ref-type="bibr" rid="r20"><italic>20</italic></xref>, <xref ref-type="bibr" rid="r25"><italic>25</italic></xref>, <xref ref-type="bibr" rid="r46"><italic>46</italic></xref>&#x2013;<xref ref-type="bibr" rid="r48"><italic>48</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Nedostaje podataka<break/>/ Data lacking</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Ispitivanje u tijeku<break/>/ Trial ongoing</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Smrt od svih uzroka<break/>/ All-cause mortality (<xref ref-type="bibr" rid="r25"><italic>25</italic></xref>, <xref ref-type="bibr" rid="r47"><italic>47</italic></xref>, <xref ref-type="bibr" rid="r49"><italic>49</italic></xref>, <xref ref-type="bibr" rid="r50"><italic>50</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Nedostaje podataka<break/>/ Data lacking</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Ne / No</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Da / Yes</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Ispitivanje u tijeku<break/>/ Trial ongoing</td>
</tr>
<tr>
<td valign="middle" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt" scope="row">Venska tromboembolija<break/>/ Venous thromboembolism (<xref ref-type="bibr" rid="r22"><italic>22</italic></xref>, <xref ref-type="bibr" rid="r51"><italic>51</italic></xref>, <xref ref-type="bibr" rid="r52"><italic>52</italic></xref>)</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt">Ne / No</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt">Ne / No</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt">Ne / No</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt">Ne / No</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt">Ne / No</td>
<td valign="middle" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.75pt">&#x2013;</td>
</tr>
</tbody>
</table><table-wrap-foot>
<p>Da/Yes = opisana povezanost izme&#x0111;u Lp(a) i ishoda / association between Lp(a) and outcome has been described; Ne/No = nema izvije&#x0161;tene povezanosti izme&#x0111;u Lp(a) i ishoda / no association between Lp(a) and outcome has been noted; Nedostaje podataka / Data lacking &#x2013; zna&#x010D;i da ispitivanja nisu dostupna / means that tests are not available. Tablica prilago&#x0111;ena prema / Table adapted from: Kronenberg F, et al. / et al. Eur Heart J. 2022;43:3925&#x2013;46.</p>
</table-wrap-foot></table-wrap>
<p>U sekundarnoj prevenciji povi&#x0161;eni Lp(a) u krvi povezan je s pove&#x0107;anim rizikom od velikih &#x0161;tetnih kardiovaskularnih doga&#x0111;aja, iako su razna ispitivanja izvijestila o odre&#x0111;enim razlikama u rezultatima. (<xref ref-type="bibr" rid="r53"><italic>53</italic></xref>) AIM-HIGH ispitivanje pokazalo je otprilike 90% ve&#x0107;i rizik za velike kardiovaskularne doga&#x0111;aje kada je Lp(a) bio &gt;75. percentile (&gt;125 nmol/L) u usporedbi s manjim koncentracijama, &#x010D;ak i kad je LDL-kolesterol bio oko 65 mg/dL (1,67 mmol/L). (<xref ref-type="bibr" rid="r54"><italic>54</italic></xref>) U metaanalizi &#x010D;iji je cilj bio procijeniti prognosti&#x010D;ku mogu&#x0107;nost kori&#x0161;tenja razina lipoproteina(a) u bolesnika s bolesti koronarnih arterija lije&#x010D;enih statinima, razine Lp(a) &gt;80. percentile bile su zna&#x010D;ajno prediktivne za rekurentne doga&#x0111;aje [omjer izgleda (OR): 1,40, 95% interval pouzdanosti (CI): 1,15&#x2013;1,71], ali ne i kada je po&#x010D;etna vrijednost LDL-kolesterola bila &lt;130 mg/dL (&lt;3,35 mmol/L). (<xref ref-type="bibr" rid="r55"><italic>55</italic></xref>) U <italic>Copenhagen City Heart Study</italic> (CCHS) rizik od velikih kardiovaskularnih doga&#x0111;aja bio je ve&#x0107;i kod Lp(a) &#x2265; 50 mg/dL u odnosu na koncentracije &lt;10 mg/dL, &#x010D;ak i kada su razine LDL-kolesterola bile relativno niske, tj. &lt;70 mg/dL (&lt;1,8 mmol/L). (<xref ref-type="bibr" rid="r56"><italic>56</italic></xref>)</p>
</sec>
<sec sec-type="other3">
<title>Povezanost Lp(a) i stenoze aortnog zaliska</title>
<p>Utvr&#x0111;eno je da lokus LPA bitno doprinosi riziku od stenoze aortnog zaliska (engl. AVS). Visoka koncentracija Lp(a) povezana je s mikrokalcifikacijom i makrokalcifikacijom aortnog zaliska, posebice u relativno mladih zdravih osoba (45 &#x2013; 54 godine) kod kojih je rizik pove&#x0107;an tri puta ako je Lp(a) &gt;80. percentile u odnosu na osobe sa ni&#x017E;im koncentracijama Lp(a) (15,8% u odnosu na 4,3%). Visoka koncentracija Lp(a) tako&#x0111;er mo&#x017E;e pospje&#x0161;iti br&#x017E;u progresiju aortalne stenoze koja rezultira ranijom zamjenom aortnog zaliska i gdjekada, posebno ako se ne lije&#x010D;i, smr&#x0107;u (<xref ref-type="table" rid="t4">Table 4</xref>). (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>) U nedavno objavljenom ispitivanju na 143.087 Islan&#x0111;ana dokazana je sna&#x017E;na povezanost AVS-a (i ishemijske koronarne bolesti srca te zatajivanja srca) s izmjerenim i imputiranim koncentracijama lipoproteina(a) i brojem ponavljanja KIV2. (<xref ref-type="bibr" rid="r21"><italic>21</italic></xref>)</p>
<table-wrap id="t4" position="float">
<label>Table 4</label><caption><title>More significant studies on the possibilities of certain therapies in lowering elevated lipoprotein(a) [Lp(a)]</title>
</caption>
<table frame="hsides" rules="groups">
<col width="12.45%"/>
<col width="11.82%"/>
<col width="28.99%"/>
<col width="46.74%"/>
<thead>
<tr>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.75pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Izvor / Source</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Dizajn<break/>/ Design</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Populacija / Population</th>
<th valign="middle" align="left" scope="col" style="border-left: solid 0.50pt; border-top: solid 0.75pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Ishodi / Outcomes</th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="4" valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">Statini / Statins</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Willeit, et al.<break/>/ et al., 2018 (<xref ref-type="bibr" rid="r17"><italic>17</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Metaanaliza<break/>/ Meta-analysis</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">29.069 bolesnika s dokazanom kardiovaskularnom bolesti s terapijom statinima ili bez nje / 29 069 patients with proven cardiovascular disease with or without statin treatment</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Statini sni&#x017E;avaju koncentracije LDL-kol. bez zna&#x010D;ajnog utjecaja na razine Lp(a)<break/>/ Statins decrease LDL-cholestrol concentrations without any significant effect on Lp(a) levels</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Tsimikas, et al.<break/>/ et al., 2020 (<xref ref-type="bibr" rid="r71"><italic>71</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Metaanaliza<break/>/ Meta-analysis</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">5.256 bolesnika (1.371 na placebu i 3.885 na razli&#x010D;itim statinima) iz 6 klini&#x010D;kih ispitivanja / 5256 patients (1371 on placebo and 3885 on different statins) from 6 clinical trials</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Prosje&#x010D;ne promjene koncentracije Lp(a) od po&#x010D;etnih vrijednosti kretale su se od 8,5% do 19,6% u statinskoj skupini<break/>/ Average changes in Lp(a) concentrations from starting values were 8.5-19.6% in statin group</td>
</tr>
<tr>
<td colspan="4" valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">PCSK9 inhibitori / PCSK9 inhibitors</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Fourier (<xref ref-type="bibr" rid="r64"><italic>64</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Klini&#x010D;ko ispitivanje<break/>/ Clinical trial</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">25.096 bolesnika s ASKVB-om na intenzivnoj terapiji statinima s ezetimibom ili bez njega / 25 096 patients with atherosclerotic cardiovascular disease on intensive statin treatment with or without ezetimibe</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Evolokumab sni&#x017E;ava Lp(a) prosje&#x010D;no za<break/>26,9% u odnosu na po&#x010D;etne vrijednosti u 48 tjednu i za 23% smanjuje rizik velikih KV doga&#x0111;aja u bolesnika s po&#x010D;etnim vrijednostima Lp(a) iznad 37 nmol/L<break/>u usporedbi s placebom / Evolocumab decreases Lp(a) on average by 26.9% when compared with starting values in 48th week, and decreases risk of major cardiovascular events by 23% in patients with starting Lp(a) values above 37 nmol/L when compared with placebo</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Odyssey<break/>outcomes (<xref ref-type="bibr" rid="r65"><italic>65</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Klini&#x010D;ko ispitivanje<break/>/ Clinical trial</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">18.924 bolesnika koji su imali AKS i koji su bili na intenzivnoj terapiji statinima / 18 924 patients with acute coronary syndrome on intensive statin treatment</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Alirokumab sni&#x017E;ava Lp(a) u prosjeku za<break/>23% od po&#x010D;etnih vrijednosti u 4. mjesecu; vi&#x0161;e po&#x010D;etne vrijednosti Lp(a) su bile povezane s ja&#x010D;im sni&#x017E;enjem Lp(a),<break/>&#x0161;to je bilo povezano sa zna&#x010D;ajnim smanjenjem rizika za velike KV doga&#x0111;aje neovisno o razinama LDL-kolesterola<break/>/ Alirocumab decreases Lp(a) on average by 23% from starting values in 4th month; higher starting Lp(a) values were associated with greater Lp(a) decrease which was associated with significant decrease of risk for major cardiovascular events independently of LDL-cholesterol levels</td>
</tr>
<tr>
<td colspan="4" valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">RNK terapije / RNA therapies</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">miRNK</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt"></td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt"></td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt"></td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">ORION 9, 10 i 11 (<xref ref-type="bibr" rid="r66"><italic>66</italic></xref>, <xref ref-type="bibr" rid="r67"><italic>67</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Klini&#x010D;ka ispitivanja<break/>/ Clinical trials</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">3.660 bolesnika. Istra&#x017E;ivanje djelotvornosti i sigurnosti inklisirana tijekom 18 mjeseci, u bolesnika s heterozigotnom porodi&#x010D;nom hiperkolesterolemijom, ASKVB ili ekvivalent rizika za ASKVB / 3660 patients. Investigation of efficacy and safety of inclirisan during 18 months in patients with heterozygous familial hypercholesterolemia, ASCVB or risk equivalent for ASCVB</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Inklisiran je prosje&#x010D;no snizio vrijednosti Lp(a) u nmol/L 540. dana izme&#x0111;u 17% do 26% kao mjera sekundarnog ishoda.<break/>/ Inclisiran decreased Lp(a) on average by 17-26% after 540 days as a measure of secondary outcome.</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Olpasiran<break/>(AMG 890) (<xref ref-type="bibr" rid="r72"><italic>72</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Faza 1<break/>/ Phase 1</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">64 zdrava odrasla sudionika s Lp(a) &#x2265;70 nmol/L<break/>/ 64 healthy adult persons with Lp(a) &#x2265;70 nmol/L</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Olpasiran je ovisno o dozi prosje&#x010D;no snizio Lp(a) za 71% do 97% od po&#x010D;etne vrijednosti &#x2265;70 do &#x2264;199 nmol/L, a u bolesnika koji su imali Lp(a) &#x2265;200 nmol/L za 76% do 91%.<break/>/ Olpasiran decreased Lp(a) dose dependently on average by 71-97% from starting values &#x2265;70 to &#x2264;199 nmol/L, and in patients with Lp(a) &#x2265;200 nmol/L by 76-91%.</td>
</tr>
<tr>
<td colspan="4" valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="col">ASO</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">APO(a)Rx (<xref ref-type="bibr" rid="r73"><italic>73</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Faza 2<break/>/ Phase 2</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">64 zdrava sudionika s Lp(a) &#x2265;125 nmol/L / 64 healthy persons with Lp(a) &#x2265;125 nmol/L</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">APO(a)Rx je zna&#x010D;ajno snizio Lp(a) nakon 85 dana za 70%<break/>/ APO(a)Rx significantly decreased Lp(a) after 85 days by 70%</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt" scope="row">Pelacarsen<break/>(TQJ230) (<xref ref-type="bibr" rid="r73"><italic>73</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">Faza 1/2a<break/>/ Phase 1/2a</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.50pt">58 zdrava sudionika s Lp(a)<break/>&#x2265;75 nmol/L<break/>/ 58 healthy persons with Lp(a)<break/>&#x2265;75 nmol/L</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.50pt">Pelakarsen je zna&#x010D;ajno prosje&#x010D;no snizio ovisno o dozi Lp(a). Sni&#x017E;enje je bilo do 92% kod najve&#x0107;e doze, ali je bilo zna&#x010D;ajno i kod svih manjih pojedina&#x010D;nih i vi&#x0161;estrukih doziranja nakon 30 i 36 dana. / Pelacarsen significantly decreased Lp(a) dose dependently. The highest dose decreased Lp(a) up to 92% but lower doses decreased it also significantly after 30-36 days.</td>
</tr>
<tr>
<td valign="top" align="left" style="border-left: solid 0.75pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt" scope="row">Pelacarsen<break/>(TQJ230) (<xref ref-type="bibr" rid="r74"><italic>74</italic></xref>)</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt">Faza 2<break/>/ Phase 2</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.50pt; border-bottom: solid 0.75pt">286 bolesnika s dokazanom KVB i po&#x010D;etnim Lp(a) &#x2265;150 nmol/L<break/>/ 286 patients with proven cardiovascular disease and Lp(a)<break/>&#x2265;150 nmol/L at the beginning</td>
<td valign="top" align="left" style="border-left: solid 0.50pt; border-top: solid 0.50pt; border-right: solid 0.75pt; border-bottom: solid 0.75pt">Pelakarsen je zna&#x010D;ajno, ovisno o dozi prosje&#x010D;no snizio Lp(a) i do 80% nakon 6 mjeseci u odnosu na po&#x010D;etne vrijednosti. / Pelacarsen decreased Lp(a) significantly dose dependently up to 80% after 6 months when compared with starting values.</td>
</tr>
</tbody></table></table-wrap>
<p>Do &#x017E;ivotne dobi od dvije godine LPA gen je potpuno izra&#x017E;en. Razine Lp(a) koje imaju odrasle osobe obi&#x010D;no se posti&#x017E;u s oko pet godina, ali se mogu se pove&#x0107;avati do odrasle dobi. (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>)</p>
</sec>
<sec sec-type="other4">
<title>Izazovi odre&#x0111;ivanja Lp(a)</title>
<p>Heterogenost veli&#x010D;ine apo(a) zbog razli&#x010D;itog broja ponavljanja tzv. petlja (kringle) IV-2 domena uzrokuje interindivindualnu razli&#x010D;itost veli&#x010D;ina Lp(a) &#x010D;estica. Ova &#x010D;injenica predstavlja izazov za to&#x010D;nost mjerenja Lp(a) zbog nemogu&#x0107;nosti to&#x010D;ne kalibracije imunokemijskih metoda. Zbog toga je Me&#x0111;unarodno udru&#x017E;enje za klini&#x010D;ku kemiju i laboratorijsku medicinu (engl. IFCC) u suradnji s Odborom za biolo&#x0161;ke standarde Svjetske zdravstvene organizacije (engl. WHO) jo&#x0161; 2001. godine kreiralo i preporu&#x010D;ilo jedinstveni zajedni&#x010D;ki kalibrator te obvezu izra&#x017E;avanja rezultata u nmol/L radi standardizacije mjernih metoda. Mjerenje molarne koncentracije te kalibracija u vi&#x0161;e koncentracijskih razina u najve&#x0107;oj mogu&#x0107;oj mjeri zaobilazi heterogenost mjerenja mase. Mjerenjem Lp(a) u molarnim jedinicama (nmol/L) iskazuje se koli&#x010D;ina &#x010D;estica Lp(a), a ne njihova masa. (<xref ref-type="bibr" rid="r7"><italic>7</italic></xref>)</p>
<p>U idealnom slu&#x010D;aju, imunokemijske metode mjerenja Lp(a) trebale bi koristiti protutijela za jedinstveni epitop Lp(a) &#x010D;estice razli&#x010D;it od varijabilne petlje IV-2 domene. Me&#x0111;utim, proizvodnja takvih protutijela nije jednostavna te zbog toga dana&#x0161;nje metode rabe protutijela koja prepoznaju ove ponavljaju&#x0107;e epitope i stoga potencijalno podcjenjuju ili precjenjuju koncentraciju Lp(a) ovisno o prisutnosti malih ili velikih izoformi. Djelomi&#x010D;no se ovaj problem zaobilazi kori&#x0161;tenjem dobro definirane kalibracijske krivulje (najmanje pet razli&#x010D;itih koncentracija kalibratora), kako je navedeno u preporukama IFCC-a. (<xref ref-type="bibr" rid="r57"><italic>57</italic></xref>)</p>
</sec>
<sec sec-type="other5">
<title>Mogu li se koncentracije Lp(a) prera&#x010D;unati iz jedinica mase u molarne jedinice i obrnuto?</title>
<p>Preporu&#x010D;ene metode za mjerenje Lp(a) su one koje su kalibrirane u nmol/L. Ne preporu&#x010D;uje se rabiti faktore konverzije iz g/L ili mg/dl u nmol/L s obzirom na heterogenost veli&#x010D;ine &#x010D;estica. Aterogeni rizik izravno je povezan s brojem Lp(a) &#x010D;estica, a isti se izra&#x017E;ava isklju&#x010D;ivo kao molarna koncentracija. Zbog toga bi svi klini&#x010D;ki laboratoriji trebali mjeriti Lp(a) metodama preporu&#x010D;enim od strane relevantnih me&#x0111;unarodnih stru&#x010D;nih udruga, a to su metode &#x010D;iji je rezultat izra&#x017E;en u nmol/L.</p>
<p>Shodno navedenom, ne preporu&#x010D;uje se kori&#x0161;tenje standardnog faktora za pretvorbu, odnosno prera&#x010D;unavanje mg/dL u nmol/L, s obzirom na heterogenost mjerenih &#x010D;estica i razli&#x010D;itost mjernih metoda. U situacijama kada se obje jedinice koriste u klini&#x010D;koj praksi, 2,0 &#x2013; 2,5 je samo &#x201E;najbolja pretpostavka&#x201C; za faktor pretvorbe (mg/dL u nmol/L). Istra&#x017E;ivanja koja su spomenuta u ovom &#x010D;lanku sadr&#x017E;e koncentracije Lp(a) u onim jedinicama kako su objavljene u izvornim publikacijama. Za op&#x0107;e izjave koje se odnose na koncentraciju Lp(a), u mg/dL i nmol/L kori&#x0161;ten je pribli&#x017E;an faktor pretvorbe od 2,0 &#x2013; 2,5, uz sva ograni&#x010D;enja koja su ranije spomenuta.</p>
</sec>
<sec sec-type="other6">
<title>Koristi odre&#x0111;ivanja Lp(a) za bolesnike</title>
<p>Odre&#x0111;ivanje Lp(a) olak&#x0161;ava identifikaciju i bolju skrb o bolesnicima s visokim kardiovaskularnim rizikom. Pojedinci s vrlo visokom razinom Lp(a) (&gt;430 nmol/L; ~180 mg/dL) imaju vi&#x0161;e od tri puta pove&#x0107;an rizik od ASKVB-a, &#x0161;to se mo&#x017E;e usporediti s rizikom koji imaju bolesnici s heterozigotnom porodi&#x010D;nom hiperkolesterolemijom. Iako je vrlo visoki Lp(a) 2,5 puta &#x010D;e&#x0161;&#x0107;i od heterozigotne porodi&#x010D;ne hiperkolesterolemije (1:100 u odnosu na 1:250), velika ve&#x0107;ina bolesnika ostaje nedijagnosticirana jer standardno odre&#x0111;ivanje lipida, odnosno lipoproteina ne uklju&#x010D;uje mjerenje Lp(a). (<xref ref-type="bibr" rid="r58"><italic>58</italic></xref>) Konkretno, spoznaja o povi&#x0161;enom Lp(a) treba uputiti lije&#x010D;nike na obra&#x0107;anje ve&#x0107;e pozornosti i intenzivnije lije&#x010D;enje drugih &#x010D;imbenika rizika za ASKVB koji se mogu uspje&#x0161;no lije&#x010D;iti, ali i izvo&#x0111;enje kaskadnog probira porodice. Tako primjerice bolesnici s visokim koncentracijama Lp(a) koji se lije&#x010D;e statinima zbog pove&#x0107;anog LDL-kolesterola ne&#x0107;e postizati ono sni&#x017E;enje LDL-kolesterola koje bi se moglo o&#x010D;ekivati i imaju ve&#x0107;i rezidualni kardiovaskularni rizik unato&#x010D; lije&#x010D;enju maksimalno podno&#x0161;ljivim dozama statina &#x010D;ak i kad uzimaju statin u kombinaciji s ezetimibom. Me&#x0111;utim, ti &#x0107;e bolesnici imati ve&#x0107;u relativnu korist od terapije inhibitorom PCSK9 ili inklisiranom jer ti lijekovi mogu smanjiti Lp(a) za 15&#x2013;30%. (<xref ref-type="bibr" rid="r59"><italic>59</italic></xref>, <xref ref-type="bibr" rid="r60"><italic>60</italic></xref>) &#x0160;tovi&#x0161;e, s obzirom na to da se Lp(a) prenosi autosomno dominantno, bliski ro&#x0111;aci osoba s povi&#x0161;enim Lp(a) potencijalno bi se mogli otkriti kaskadnim probirom i, ako je potrebno, zapo&#x010D;eti lije&#x010D;iti u znatno ranijoj &#x017E;ivotnoj dobi. Primjerice, smjernica HEART UK preporu&#x010D;uje da jedna od ciljnih populacija budu srodnici u prvom koljenu bolesnika s povi&#x0161;enim Lp(a). Osim toga, ranija identifikacija takvih bolesnika omogu&#x0107;uje lije&#x010D;nicima da ranije stupe u kontakt s bolesnikom i njegovim ili njenim bliskim srodnicima i djeluju na pove&#x0107;anje njihove svijesti o &#x010D;injenici da je povi&#x0161;eni Lp(a) nasljedni uzrok preuranjene ASKVB. (<xref ref-type="bibr" rid="r61"><italic>61</italic></xref>)</p>
<p>Iako randomizirana ispitivanja s lijekovima koji smanjuju Lp(a) za 20 &#x2013; 30%, primjerice niacin, nisu pokazala da smanjenje Lp(a) smanjuje rizik od aterosklerotske KVB, novija ispitivanja s inhibitorima PCSK9 upu&#x0107;uju da bi smanjenje Lp(a) ipak moglo smanjiti rizik ASKVB-a. (<xref ref-type="bibr" rid="r62"><italic>62</italic></xref>)</p>
</sec>
<sec sec-type="other7">
<title>Klini&#x010D;ke smjernice: &#x0161;to u&#x010D;initi s bolesnikom koji ima povi&#x0161;en Lp(a)?</title>
<p>U nedostatku odobrenih specifi&#x010D;nih lijekova za sni&#x017E;avanje Lp(a), preporu&#x010D;uje se rana i intenzivna skrb te lije&#x010D;enje drugih &#x010D;imbenika kardiovaskularnog rizika u osoba s povi&#x0161;enim razinama Lp(a), u skladu s ve&#x0107;inom smjernica. (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>)</p>
<p>Sukladno tomu valja individualizirati pristup lije&#x010D;enju povi&#x0161;enog LDL-kolesterola, arterijskog krvnog tlaka, glukoze (lije&#x010D;enje dijabetesa), debljine i poticati zdrav na&#x010D;in &#x017E;ivota, uzimaju&#x0107;i u obzir po&#x010D;etni kardiovaskularni rizik i nelije&#x010D;enu razinu Lp(a), sve radi smanjenja rizika za ASKVB. To mo&#x017E;e smanjiti pove&#x0107;ani rizik uzrokovan povi&#x0161;enim Lp(a).</p>
<p>Preporu&#x010D;uje se obvezatno lije&#x010D;iti LDL-kolesterol sukladno va&#x017E;e&#x0107;im smjernicama. Iako statini mogu neznatno povisiti razinu Lp(a), lije&#x010D;enje statinima ne smije se prekinuti budu&#x0107;i da korist od lije&#x010D;enja statinima u bolesnika s visokim Lp(a) koji imaju i povi&#x0161;eni LDL-kolesterol daleko nadma&#x0161;uje svaki potencijalni rizik povezan s umjerenim pove&#x0107;anjem razine Lp(a) uzrokovanim statinima. Dapa&#x010D;e, valja intenzivirati sni&#x017E;enje jako pove&#x0107;anog LDL-kolesterola ovisno o razinama Lp(a) kako bi se smanjio rizik ASKVB-a. (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>)</p>
<p>Afereza lipoproteina mo&#x017E;e do&#x0107;i u obzir u bolesnika s vrlo visokim Lp(a) koji imaju uznapredovalu ASKVB unato&#x010D; optimalnom lije&#x010D;enju drugih &#x010D;imbenika rizika, uklju&#x010D;uju&#x0107;i i pove&#x0107;eni LDL-kolesterol. (<xref ref-type="bibr" rid="r63"><italic>63</italic></xref>)</p>
<p>Preporu&#x010D;uje se lije&#x010D;iti PCSK9 inhibitorima (alirokumab ili evolokumab) ili miRNK (inklisiran) bolesnike s mije&#x0161;anom dislipidemijom i/ili rezidualnim kardiovaskularnim rizikom kod kojih maksimalno podno&#x0161;ljivim dozama statina s ezetimibom ili bez njega nije postignuta ciljna koncentracija LDL-kolesterola. (<xref ref-type="bibr" rid="r64"><italic>64</italic></xref>&#x2013;<xref ref-type="bibr" rid="r67"><italic>67</italic></xref>)</p>
<p>Niacin se ne preporu&#x010D;uje za lije&#x010D;enje povi&#x0161;enog Lp(a) s obzirom na nedostatak dokaza o klini&#x010D;koj koristi u dva klini&#x010D;ka ispitivanja, usprkos &#x010D;injenici da niacin donekle sni&#x017E;ava Lp(a). (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>, <xref ref-type="bibr" rid="r68"><italic>68</italic></xref>)</p>
<p>Trenuta&#x010D;ni podatci tako&#x0111;er ne podupiru ciljanu upotrebu aspirina kod pove&#x0107;ane koncentracije Lp(a). (<xref ref-type="bibr" rid="r13"><italic>13</italic></xref>)</p>
<p>Postoje istra&#x017E;ivanja koja upu&#x0107;uju da bi uzimanje dodataka hrani poput lanenih sjemenki moglo smanjiti razine Lp(a), no stvarna korist od toga zasada je jo&#x0161; upitna. (<xref ref-type="bibr" rid="r69"><italic>69</italic></xref>)</p>
<p>Nedavno je pokazano da barijatrijska kirurgija u debelih osoba smanjuje Lp(a), no nema izravnih dokaza da to tako&#x0111;er smanjuje i rizik za ASKVB. (<xref ref-type="bibr" rid="r70"><italic>70</italic></xref>)</p>
</sec>
<sec sec-type="other8">
<title>Kako pristupiti izazovu povi&#x0161;ene koncentracije lipoproteina(a)?</title>
<sec>
<title>Preporuke:</title>
<p>Mjerenje Lp(a) treba rutinski uklju&#x010D;iti kao dio po&#x010D;etnoga lipidnog profila. Na&#x010D;elno, Lp(a) treba odrediti svakoj osobi jednom u &#x017E;ivotu.</p>
<p>Povi&#x0161;enom koncentracijom Lp(a) treba smatrati onu iznad 100 &#x2013; 125 nmol/L, a vrijednost Lp(a) treba uvijek izra&#x017E;avati u nmol/L.</p>
<p>Predla&#x017E;emo da se lipoprotein(a) za sada odre&#x0111;uje u klini&#x010D;kim bolni&#x010D;kim centrima i klini&#x010D;kim bolnicama, te da druge ustanove dostavljaju uzorke u klini&#x010D;ke bolni&#x010D;ke centre i klini&#x010D;ke bolnice.</p>
<p>Lipoprotein(a) bi trebalo u&#x010D;initi lako dostupnim u informati&#x010D;kim sustavima (IBIS) svih klini&#x010D;kih bolni&#x010D;kih centara i klini&#x010D;kih bolnica.</p>
<p>Ciljana populacija:</p>
<list id="L2" list-type="bullet"><list-item><p>bolesnicima u sekundarnoj prevenciji koji imaju progresiju i/ili simptomatsku ASKVB unato&#x010D; dobro kontroliranom LDL-kolesterolu i drugim &#x010D;imbenicima rizika te onima s porodi&#x010D;nom hiperkolesterolemijom treba obvezatno odrediti Lp(a).</p></list-item>
<list-item><p>u primarnoj prevenciji preporu&#x010D;ujemo da svima u sklopu trenutno predlo&#x017E;enoga Nacionalnog preventivnog programa obiteljska medicina postupno odredi Lp(a) tijekom slijede&#x0107;e dvije do tri godine.</p></list-item></list>
<p>Preporu&#x010D;uje se obiteljsko savjetovanje pri dokazu povi&#x0161;enog Lp(a).</p>
<p>Potrebno je obavijestiti bliske krvne ro&#x0111;ake o pove&#x0107;anom riziku za ASKVB; ponuditi kaskadno testiranje za visoki Lp(a) i savjetovanje prije i poslije testiranja bliskim ro&#x0111;acima indeksnog bolesnika.</p>
<p>Potrebno je promicati kori&#x0161;tenje MKB kodova za povi&#x0161;eni Lp(a) u bolnicama, primarnim ustanovama i klini&#x010D;kim registrima.</p>
<p>MKB-10 &#x2013; dijagnosti&#x010D;ka &#x0161;ifra E78.41: Povi&#x0161;en Lp(a) te MKB-10 &#x2013; dijagnosti&#x010D;ka &#x0161;ifra Z83.430: Obiteljska povijest povi&#x0161;enog Lp(a)</p>
<p>Potrebno je uklju&#x010D;iti Lp(a) u strategije procjene rizika za ASKVB.</p>
<p>U svih s pove&#x0107;anim Lp(a) potrebno je procijeniti apsolutni rizik za ASKVB.</p>
<p>Potrebno je obratiti pozornost na rizi&#x010D;ne &#x010D;imbenike pona&#x0161;anja i osigurati savjete o zdravom na&#x010D;inu &#x017E;ivota i prehrane.</p>
<p>Potrebno je razgovarati o rizicima i koristima terapije lijekovima za &#x010D;imbenike kardiovaskularnog rizika, uzimaju&#x0107;i u obzir vrijednosti &#x010D;imbenika rizika i sklonosti bolesnika.</p>
<p>Potrebno je ponuditi pregled kod specijalista svim bolesnicima s povi&#x0161;enim Lp(a) i visokim rizikom od ASKVB-a.</p>
</sec>
<sec>
<title>Laboratorijska izvje&#x0161;&#x0107;a</title>
<p>Potrebno je upozoriti klini&#x010D;are na va&#x017E;nost povi&#x0161;ene koncentracije Lp(a) iznad 100 nmol/L.</p>
</sec>
<sec>
<title>Klini&#x010D;ki registri</title>
<p>Svi bolesnici s izrazito visokim Lp(a) i oboljeli krvni ro&#x0111;aci trebali bi biti uklju&#x010D;eni u kvalitetan klini&#x010D;ki registar koji valja uspostaviti.</p>
</sec>
<sec>
<title>Suradnja s udrugama bolesnika</title>
<p>Potrebno je uspostaviti suradnju s udrugama bolesnika u svrhu uspje&#x0161;nijeg zagovaranja pobolj&#x0161;anja skrbi za osobe s visokim Lp(a): to bi trebalo uklju&#x010D;ivati podizanje svijesti javnosti, osiguravatelja (Hrvatski zavod za zdravstveno osiguranje) i Ministarstva zdravstva, provedbu isplativih strategija testiranja i pristup novim na&#x010D;inima lije&#x010D;enja koji dolaze.</p>
<p>Potrebno je raditi na podizanju svijesti dru&#x0161;tva u cjelini o va&#x017E;nosti povi&#x0161;ene koncentracije Lp(a), &#x0161;to uklju&#x010D;uje dru&#x0161;tvene medije, zdravstvene aplikacije, <italic>web</italic> stranice i <italic>webinare</italic>.</p>
</sec>
</sec>
</body>
<back>
<ack>
<title>Zahvala</title>
<p>Zahvala prof. dr. sc. Kristini Selthofer-Relati&#x0107; za intelektualnu pomo&#x0107; prigodom izrade &#x010D;lanka.</p>
</ack>
<ack>
<title>KRATICE</title>
<p>ASKVB, aterosklerotska kardiovaskularna bolest; ASO, <italic>antisense oligonukleotid;</italic> AVS, stenoza aortne valvule; EAS, <italic>European Atherosclerosis Society</italic>; ESC, <italic>European Society of Cardiology</italic>; LDL-K, kolesterol u lipoproteinima niske gusto&#x0107;e; Lp(a), lipoprotein(a); KV, kardiovaskularni; MACE, veliki &#x0161;tetni kardiovaskularni doga&#x0111;aji; miRNK, mala interferiraju&#x0107;a RNK; MKB, Me&#x0111;unarodna klasifikacija bolesti; PCSK9, proprotein konvertaza keksin/suptilizin tip 9</p>
</ack>
<fn-group>
<fn fn-type="conflict">
<p content-type="fn-title">INFORMACIJE O SUKOBU INTERESA</p>
<p>Autori nisu deklarirali sukob interesa relevantan za ovaj rad.</p>
</fn>
<fn fn-type="financial-disclosure">
<p content-type="fn-title">INFORMACIJA O FINANCIRANJU</p>
<p>Za ovaj &#x010D;lanak nisu primljena financijska sredstva.</p>
</fn>
</fn-group>
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