PMID: 8953874Nov 1, 1996Paper

Anesthesia combined with profound hypothermia using cardiopulmonary bypass for clipping of giant basilar artery aneurysm

Masui. The Japanese journal of anesthesiology
T KawamataA Namiki

Abstract

A 52 year-old female was scheduled for clipping of giant basilar artery aneurysm. This operation needed temporary clipping of the basilar artery for 30-40 minutes, and preoperative examination suggested that some regions would become ischemic by temporary clipping. Therefore profound hypothermia using cardiopulmonary bypass (CPB) and thiamylal loading were planned to prevent cerebral damage during the operation. Anesthesia was induced with thiamylal, fentanyl, and isoflurane in nitrous oxide and oxygen. Following administration of vecuronium, trachea was intubated. Two hours after the start of surgery, thiamylal was titrated to obtain EEG patterns of burst-suppression before CPB and the infusion was continued until CPB was discontinued. With burst-suppression present, CPB was instituted. Hypothermia below 20 degrees C at pulmonary artery temperature was maintained until the aneurysm was clipped and bleeding from the operating site was controlled. Cooling and rewarming by CPB were carried out with ease and uneventfully. The patient had no neurological complications postoperatively.

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