title: Comparison of frequency of postoperative stroke in off-pump coronary artery bypass grafting versus on-pump coronary artery bypass grafting versus percutaneous coronary intervention.
abstract: The stroke rate after coronary artery bypass grafting (CABG) compared to percutaneous coronary intervention (PCI) is generally considered high because cardiopulmonary bypass and aortic manipulations are often associated with cerebrovascular complications. However, an increasing number of CABGs performed without cardiopulmonary bypass (OPCAB) may improve those outcomes. Of 6,323 patients with multivessel and/or left main coronary artery disease, 3,877 patients underwent PCI, 1,381 conventional on-pump CABG, and 1,065 OPCAB. Median follow-up was 3.4 years. Stroke types were classified as early (onset of stroke within 24 hours after revascularization), delayed (within 30 days), and late (after 30 days). Propensity score analysis showed that the incidences of early, delayed, and late stroke did not differ between PCI and OPCAB (0.65, 95% confidence interval 0.08 to 5.45, p = 1.00; 0.36, 0.10 to 1.29, p = 0.23; 0.81, 0.52 to 1.27, p = 0.72, respectively). In contrast, incidence of early stroke after on-pump CABG was higher than after OPCAB (7.22, 1.67 to 31.3, p = 0.01), but incidences of delayed and late stroke were not different (1.66, 0.70 to 3.91, p = 0.50; 1.18, 0.83 to 1.69, p = 0.73). In conclusion, occurrence of stroke was not found to differ in patients after PCI versus OPCAB regardless of onset of stroke. Occurrence of early stroke after OPCAB was lower than that after on-pump CABG, yet occurrences of delayed and late strokes were similar for the 3 revascularization strategies.
authors.affiliation: Department of Cardiovascular Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan. marui@kuhp.kyoto-u.ac.jp
authors.forename: Akira
authors.initials: A
authors.lastname: Marui
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kimura
authors.forename: Shiro
authors.initials: S
authors.lastname: Tanaka
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Okabayashi
authors.forename: Tatsuhiko
authors.initials: T
authors.lastname: Komiya
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Furukawa
authors.forename: Toru
authors.initials: T
authors.lastname: Kita
authors.forename: Ryuzo
authors.initials: R
authors.lastname: Sakata
mesh_terms: D000368:Aged; D001026:Coronary Artery Bypass; D047549:Coronary Artery Bypass, Off-Pump; D003324:Coronary Artery Disease / Q000401:mortality / Q000601:surgery / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D062645:Percutaneous Coronary Intervention / Q000009:adverse effects*; D011183:Postoperative Complications; D057216:Propensity Score; D020521:Stroke / Q000453:epidemiology / Q000209:etiology*; D015996:Survival Rate; D016896:Treatment Outcome