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Updated: May 19, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Ruptured abdominal aortic aneurysm with left-sided inferior vena cava
Tetsuya Niino1, Satoshi Unosawa, Kazuma Shimura
1Department of Cardiovascular Surgery, National Hospital Organization Disaster Medical Center, Tachikawa, Tokyo, Japan. tetsuyan77@gmail.com
Abstract:
We present a case of ruptured abdominal aortic aneurysm with left-sided inferior vena cava. An 82-year-old man was admitted to our hospital with a sudden onset of severe abdominal pain and loss of consciousness. Computed tomography revealed rupture of an infrarenal abdominal aortic aneurysm and a left-sided inferior vena cava. At surgery, the inferior vena cava was found to cross anteriorly over the abdominal aorta at the usual level of the renal vein. Graft replacement was successfully performed, with careful mobilization and retraction of the inferior vena cava. The patient had an uneventful postoperative course without any deterioration of renal function.
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