High-output heart failure is an important cause of heart failure that is
associated with increased mortality, and most frequently caused by
obesity, arteriovenous shunts, and liver disease. However, high-output
HF caused by a neoplasm-related arteriovenous fistula in adults is
uncommon. We report a case of high-output HF caused by massive
arteriovenous fistula shunting associated with suspicious recurrent
pelvic cellular leiomyoma. Echocardiography played an essential rale in
identification of high-output HF and different etiologies of it by
taking concern of stroke volume, cardiac output, cardiac index.