A 68 year old, ASA physical status 11, hypertensive male patient underwent open reduction, angulated blade plate fixation, and bone graft of femur intertrochanteric fracture due to non-union. Anesthesia was induced with thiopental and succinylcholine and maintained with vecuronium- Halothane-nitrous oxide-oxygen. Three uints whole blood was transfused and any significnat change in vital signs and EKG were not found during 4 hours operation. Soon after the patient was recovered. But he was found to be hemiplegia and sensory disturbance on the next day. Brain CT revealed infarction of middle cerebral artery territory. He expired 7 days following the surgery despite strenuous supportive measure.