Why the study?
Does duplex carotid sonography identify patients at risk for postoperative cerebrovascular accidents among those undergoing abdominal or peripheral vascular surgery?
Does duplex carotid sonography identify patients at risk for postoperative cerebrovascular accidents among those undergoing abdominal or peripheral vascular surgery?
Preoperative duplex carotid sonography in patients undergoing vascular surgery identifies those with high-grade carotid stenosis who are at increased risk for postoperative ischemic cerebral infarcts.
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Identifies high-grade stenosis patients at elevated postoperative stroke risk after vascular surgery; hypothesis-generating and should not yet change practice.
Duplex carotid sonography was performed on 80 patients undergoing abdominal or peripheral vascular surgery for atherosclerotic disease. High-grade stenosis (over 50%) of one or both common or internal carotid arteries was present in 17 patients. In three of these patients ischemic cerebral infarcts developed in the territory of the most severely stenosed artery within 1 to 40 days after surgery. The other patients had no postoperative central nervous system complications. Duplex carotid sonography is indicated in patients prior to vascular surgery in order to identify the group at risk for the development of cerebrovascular accidents. Carotid endarterectomy prior to or at the time of surgery may prevent this complication.
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Debbie Walker (1985) studied this question.
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