spinal cord ischemia
Inadequate blood supply to the spinal cord, a serious complication of thoracoabdominal aortic surgery causing potential paralysis.
Full Definition
Spinal cord ischemia is a devastating complication that can occur following thoracoabdominal aortic surgery, resulting from inadequate perfusion to the spinal cord during aortic cross-clamping or coverage of critical intercostal and lumbar arteries. The anterior spinal artery syndrome is the most common manifestation, causing paraplegia or paraparesis due to ischemia of the anterior two-thirds of the spinal cord. Risk factors include extent of aortic coverage, duration of aortic cross-clamping, and individual anatomical variations in spinal blood supply. Preventive strategies include cerebrospinal fluid drainage, distal aortic perfusion, and staged procedures to minimize ischemic risk.
Usage
Usage note: Document neurological assessments and preventive measures taken when discussing spinal cord ischemia risk.
In Context
- "Postoperative neurological examination revealed signs consistent with spinal cord ischemia and immediate paraplegia." — Complication report
- "Cerebrospinal fluid drainage was initiated prophylactically to reduce the risk of spinal cord ischemia during TAAA repair." — Intraoperative note