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[Strategy for spinal cord protection during thoracoabdominal aortic surgery]
T Kunihara1, N Shiiya, K Yasuda
1Department of Cardiovascular Surgery, Hokkaido University School of Medicine, Sapporo, Japan.
Kyobu Geka. the Japanese Journal of Thoracic Surgery
|April 10, 2004
Summary
A comprehensive strategy for thoracoabdominal aortic surgery significantly reduced spinal cord injury and mortality. This approach, including specialized perfusion and monitoring, proved effective in protecting patients during complex aortic procedures.
Area of Science:
- Cardiovascular Surgery
- Neurosurgery
- Vascular Surgery
Context:
- Thoracoabdominal aortic surgery presents significant risks, particularly spinal cord injury.
- Established surgical strategies aim to mitigate these risks.
- A multi-faceted approach to spinal cord protection has been developed.
Purpose:
- To analyze the clinical outcomes of thoracoabdominal aortic surgery using a specific spinal cord protection strategy.
- To evaluate the effectiveness of distal aortic perfusion, sequential clamping, hypothermic circulatory arrest, evoked spinal cord potential monitoring, cerebrospinal fluid drainage, and pharmacological agents.
Summary:
- A cohort of 84 patients undergoing thoracoabdominal aortic surgery between 1991-2003 was analyzed.
- The study implemented a strategy involving distal aortic perfusion, multi-segmental clamping, hypothermic circulatory arrest, evoked spinal cord potential monitoring, CSF drainage, and specific medications.
- Outcomes, including spinal cord injury and mortality, were compared before and after August 1994 when the strategy was fully established.
Impact:
- The implemented strategy led to a significant reduction in the incidence of spinal cord injury (paraplegia/paraparesis) and in-hospital mortality.
- Specifically, after August 1994, spinal cord injury rates decreased notably, with 0% paraplegia in type II cases.
- The findings suggest that this comprehensive spinal cord protection strategy is effective and justifiable for thoracoabdominal aortic surgery.