Inferior Vena Cava Occlusion and Ilio-Iliac Arteriovenous Fistula Caused by Tumor Invasion: A Case Report

Endovascular Occlusion of Iliocaval Confluence During Surgical Repair of Iliocaval Fistula due to Ruptured Abdominal Aortoiliac Aneurysm

We describe the successful use of endovascular occlusion of the iliocaval confluence to prevent excessive bleeding during open repair of an iliocaval arteriovenous fistula due to a ruptured abdominal aortoiliac aneurysm. A 70-year-old man was admitted with chest pain, hemodynamic instability, acute pulmonary edema, and bilateral leg swelling. Computed tomography angiography (CTA) showed a ruptured AAIA with a large primary iliocaval fistula. Aortobifemoral bypass with a Dacron bifurcated prosthetic graft was performed with catheter balloon occlusion of the iliocaval confluence to prevent massive bleeding. Follow-up CTA showed no complications. Iliocaval fistula is a rare complication of AAIA that requires emergent surgery. Endovascular occlusion of iliac or inferior cava vein can control bleeding.

Endovascular Management of a Ruptured Iliac Aneurysm With an Inferior Vena Cava Fistula

Aortocaval fistula is uncommon and often associated with a ruptured iliac or abdominal aortic aneurysm. It has a high mortality secondary to the aneurysmal rupture but also to a high output heart failure. Open surgery has been the standard; however, endovascular management has emerged with lower mortality. We present a patient with a ruptured iliac aneurysm and an inferior vena cava fistula successfully treated with an endograft with embolization of the right hypogastric artery. The patient arrested on induction and was resuscitated with aortic balloon inflation. Endovascular therapy can be safely used in the management of iliac/aortocaval fistula.