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Preoperative spinal artery localization and its relationship to postoperative neurologic complications
S J Savader1, G M Williams, S O Trerotola
1Department of Radiology, Johns Hopkins Medical Institutions, Baltimore, MD 21287.
Purpose:
To evaluate the risk of spinal cord revascularization and ascertain the relationship between preoperative spinal arteriography and the frequency of postoperative neurologic injury and overall morbidity and mortality in patients who require surgical repair of thoracoabdominal aortic aneurysms.
Materials And Methods:
Fifty patients scheduled for surgical repair of a thoracoabdominal aortic aneurysm underwent spinal arteriography. All patients were divided into a positive spinal artery group (in which the spinal artery was identified) or negative spinal artery group (in which the spinal artery was not identified) and further divided based on extent of disease.
Results:
The complication rate of spinal arteriography was 4.6%; no patient had a permanent neurologic injury. No significant difference existed between the positive and negative spinal artery groups in occurrence of neurologic injury (P = .88) or combined morbidity and mortality (P = 51).
Conclusion:
Patients who require spinal cord revascularization do not have greater frequency of neurologic injury or overall morbidity and mortality than those without this requirement. Spinal arteriography enables definitive spinal cord revascularization and thereby reduces the risk of neurologic injury.