title: Central nervous system complications after cardiac surgery: a comparison between coronary artery bypass grafting and valve surgery.
abstract: Central nervous system (CNS) complications (disturbance of consciousness, focal motor deficits, and seizures) after coronary artery bypass grafting (CABG) and cardiac valve surgery were studied retrospectively. The incidence of CNS complications was significantly more frequent in CABG (11%, 71/638) than in valve surgery (7%, 24/345). Major contributory factors of CNS complications were preexisting cerebrovascular disease and cardiopulmonary bypass time. In comparison to previous reports, older age, hypertension, diabetes mellitus, and cerebrovascular disease were more common in the patients undergoing CABG. The preexisting cerebrovascular disease and prolonged cardiopulmonary bypass time probably increase the risk of cerebral embolism and/or cerebral hypoperfusion. We conclude that patients undergoing CABG surgery are at greater risk for neurological damage in comparison to those undergoing valve surgery.
authors.affiliation: Department of Anesthesiology-Resuscitology, Yamaguchi University Hospital, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kuroda
authors.forename: R
authors.initials: R
authors.lastname: Uchimoto
authors.forename: R
authors.initials: R
authors.lastname: Kaieda
authors.forename: R
authors.initials: R
authors.lastname: Shinkura
authors.forename: K
authors.initials: K
authors.lastname: Shinohara
authors.forename: S
authors.initials: S
authors.lastname: Miyamoto
authors.forename: S
authors.initials: S
authors.lastname: Oshita
authors.forename: H
authors.initials: H
authors.lastname: Takeshita
mesh_terms: D000368:Aged; D002315:Cardiopulmonary Bypass / Q000009:adverse effects*; D002493:Central Nervous System Diseases / Q000453:epidemiology / Q000209:etiology*; D002561:Cerebrovascular Disorders / Q000150:complications* / Q000453:epidemiology; D001026:Coronary Artery Bypass; D005260:Female; D006351:Heart Valves / Q000601:surgery*; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology / Q000209:etiology*; D012189:Retrospective Studies