Related Experiment Video
Updated: Aug 19, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Abdominal aortic aneurysm with aortocaval fistula and a separate retroperitoneal rupture
Christine Dauphine1, Jeffrey Kovar, Carlos Donayre
1Department of Surgery, Harbor-UCLA Medical Center, Torrance, CA, USA.
Abstract:
The occurrence of an aortocaval fistula (ACF) secondary to an abdominal aortic aneurysm (AAA) is uncommon and is often undiagnosed prior to AAA repair. Clinical signs may be subtle or absent; therefore, diagnosis requires a high suspicion and knowledge of this phenomenon. We present a case of the rarest form of ACF (type 4) in which an AAA and an occult ACF were associated with a second site of retroperitoneal rupture. The ruptured AAA and ACF were successfully managed with fistula ligation and aortic graft placement.
Related Concept Videos
Aneurysm III: Interprofessional Care
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Aneurysm I: Introduction
Abdominal Aorta
The celiac trunk, a singular artery, divides into the left gastric artery, which...
Aneurysm IV: Nursing Management
