Use of Anticoagulants, Electroencephalographic Monitoring, and Barbiturate Cerebral Protection in Carotid Endarterectomy

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Abstract
This paper describes a treatment protocol for threatened stroke in patients amenable to carotid endarterectomy. The protocol includes the use of perioperative anticoagulation, intraoperative electroencephalographic (EEG) monitoring, and hypertension or barbiturates to protect the brain against documented ischemia intraoperatively. The rationale and methods for protecting the patient from the threat of thromboembolism and cerebral ischemia during each of the periods of specific risk are discussed. The most unique feature of this protocol is the use of thiopental-induced EEG burst suppression for ischemia unresponsive to hypertension during carotid clamping, which has obviated the use of a potentially dangerous and cumbersome in-line arterial shunt.

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