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Neurologic complications of type I aortic dissection
M Blanco1, E Díez-Tejedor, J L Larrea
1Department of Neurology, Hospital Universitario La Paz, Universidad Autónoma de Madrid, Spain.
Acta Neurologica Scandinavica
|May 4, 1999
Summary
Neurologic complications are common in aortic dissection (AoD), particularly type I. Focal or global cerebral ischemia, often linked to the dissection
Area of Science:
- Cardiovascular Surgery
- Neurology
- Vascular Medicine
Background:
- Aortic dissection (AoD) involves intimal tears, often in the ascending aorta.
- Neurological deficits manifest in approximately 20% of AoD patients.
Purpose of the Study:
- To determine the frequency of neurologic complications in type I AoD.
- To investigate the pathogenic mechanisms behind these complications.
Main Methods:
- Retrospective review of patients with type I AoD.
- Analysis of neurologic complications in surgically treated patients (1988-1996).
Main Results:
- Nine out of 24 patients (37.7%) developed neurologic symptoms.
- Complications included hypoxic encephalopathy (55.5%), ischemic stroke (22.2%), ischemic neuropathy (22.2%), and spinal cord ischemia (11.1%).
Conclusions:
- Neurologic complications are frequent in type I AoD.
- Focal cerebral ischemia may result from false channel advancement; global ischemia from hypoperfusion.