Central nervous system dysfunction following open-heart surgery.

Adult Age Factors Aged Brain Damage, Chronic/etiology Brain Diseases/epidemiology,etiology Cardiac Surgical Procedures/adverse effects Cerebral Cortex/pathology Cerebrovascular Circulation Cognition Disorders/etiology Extracorporeal Circulation/adverse effects Female Hippocampus/pathology Humans Hypotension/complications,etiology Hypoxia/pathology Infarction Male Mental Disorders/etiology Middle Aged Neurologic Manifestations Prospective Studies Time Factors