Two cases of high-output heart failure as initial presentation of iliac arteriovenous fistula

We present two cases of females in their 40s presenting with biventricular heart failure being the consequence of a large arteriovenous fistula. Both patients had undergone abdominal surgery several years prior to the heart failure event with the initial finding of moderate pulmonary hypertension and high-output heart failure. CT revealed a large arteriovenous fistula between the common iliac artery and vein which subsequently was closed percutaneously.

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