Abstract
A-73-year-old male patient has been suffering attacks of TIA caused by the left internal carotid atherosis. The left carotid endarterectomy was performed under the type of general anesthesia whose induction and intubation were facilitated by thiopental and succinylcholine chloride and whose maintenance was nitrous oxide, oxygen and halothane. During the operation, ECG and EEG were monitored and arterial blood gas sampled. ECG and EEG did not show any change nor deterioration during the left carotid arterial clamp. The postoperative condition was uneventful.