Postrenal biopsy AVM leading to severe hypertension and dilated cardiomyopathy.

A 3-year-old girl with Alport syndrome presented with decompensated heart failure from hypertension-induced cardiomyopathy 6 months following renal biopsy. Selective renal angiography revealed a large left renal arteriovenous fistula (AVF) with poor perfusion to the left renal parenchyma. The AVF was treated by transcatheter embolization using an Amplatzer vascular plug. Her blood pressure normalized after embolization, and her cardiac function normalized over the following 4 months.