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Updated: May 8, 2026
04:56
Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Open reconstruction of thoracoabdominal aortic aneurysms
Yutaka Okita1, Atsushi Omura, Katsuaki Yamanaka
1Division of Cardiovascular Surgery, Department of Surgery, Kobe Graduate School of Medicine, Kobe, Japan.
Annals of Cardiothoracic Surgery
|August 27, 2013
Summary
This study details thoracoabdominal aortic aneurysm repair, identifying emergency surgery and prolonged aortic cross-clamping as mortality risks. Spinal cord ischemia complications were linked to prior surgeries and hypotension.
Area of Science:
- Cardiovascular Surgery
- Vascular Surgery
- Aortic Aneurysm Repair
Background:
- Thoracoabdominal aortic aneurysms (TAAA) present complex surgical challenges.
- High morbidity and mortality rates are associated with TAAA repair.
- Understanding risk factors and optimizing surgical techniques are crucial for improving outcomes.
Purpose of the Study:
- To present the technical strategy for reconstructing the thoracoabdominal aorta.
- To analyze risk factors for mortality and spinal cord ischemia after TAAA repair.
- To evaluate long-term survival rates following surgical intervention.
Main Methods:
- Retrospective analysis of 152 patients undergoing TAAA repair (October 1999 - June 2012).
- Detailed description of surgical techniques, including intercostal artery reconstruction methods (patch vs. branched grafts).
- Utilization of preoperative imaging, cerebrospinal fluid drainage (CSFD), and intraoperative motor evoked potentials (MEPs); various cardiopulmonary bypass strategies were employed.
Main Results:
- Hospital mortality was 13.2%, with independent risk factors including emergency surgery and aortic cross-clamping >2 hours.
- Spinal cord ischemia occurred in 10.5% of patients; risk factors included prior aortic surgery, diabetes, and post-bypass hypotension.
- Five-year survival was 83.6%, significantly lower in patients with spinal cord ischemia (47.5%) compared to those without (88.9%).
Conclusions:
- Thoracoabdominal aortic aneurysm repair is associated with significant mortality and morbidity, particularly spinal cord ischemia.
- Identifying and mitigating risk factors such as emergency status, prolonged cross-clamp time, and hypotension are critical for improving patient outcomes.
- Long-term survival is substantially impacted by the occurrence of postoperative spinal cord ischemia.
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