Dabigatran-related nephropathy: a case report and literature review
Autori:
Adriana Adamović, Nikola Zagorec, Matija Horaček, Petar Šenjug, Danica Galešić Ljubanović, Krešimir Galešić, Ivica Horvatić
Sažetak
Summary
Oral anticoagulants can cause acute kidney injury (AKI) called anticoagulant-related nephropathy (ARN) characterized by glomerular hemorrhage and tubular obstruction by red blood cell (RBC) casts. ARN is most commonly related to warfarin. Recent research showed that non-vitamin K oral anticoagulants (NOACs), such as dabigatran (DG), can also be related to a similar type of AKI consistent with ARN called DG-related nephropathy. The vast majority of previously reported cases of DG-related nephropathy included patients with another parenchymal renal disease, most commonly IgA nephropathy (IgAN). Here, we describe a case of kidney biopsy-confirmed
DG-related nephropathy in a seventy-five-year-old female patient without evidence of preexisting renal disease. She has been taking dabigatran due to permanent atrial fibrillation of several years duration. She presented with gross hematuria, severe AKI, clinical and radiological signs of heart failure and skin infection of the lower limb. Renal biopsy revealed normal glomeruli with signs of moderate to severe acute tubular injury with large intratubular RBC casts and zones of interstitial hemorrhage. Renal function improved significantly after DG withdrawal. This case demonstrates that DG, like warfarin, may increase the risk of renal tubular bleeding in patients, irrespective of the absence of other parenchymal kidney disease.