Key result
Postoperative CVA after isolated CABG linked to ~10-fold higher mortality.
Why the study?
Stroke or cerebrovascular accident is a devastating complication of coronary surgery, and its incidence and correlates following isolated CABG surgery were not well characterized.
Cohort (n=855)
No
Postoperative stroke after isolated CABG is an infrequent (1.4%) but devastating complication associated with high mortality and prolonged hospitalization, predicted by age, prior stroke, and renal impairment.
Answers are grounded in this paper and cite their sources.
Post-CABG CVA incidence informs perioperative risk discussion; leaves open whether correlates warrant targeted prevention in prospective studies.
Stroke or cerebrovascular accident (CVA) is a devastating complication of coronary surgery. In this report, the incidence, and correlates of CVA following isolated coronary artery bypass grafting (CABG) surgery were evaluated. Data were collected retrospectively. Between 2006 and 2009, 855 patients underwent isolated CABG surgery. CVA was defined as any new neurological deficit lasting more than 24 hours. Univariate and multivariate analyses were utilized as appropriate. The incidence of CVA was 1.4% (n = 12). Age, previous CVA, and emergency surgery were correlated by univariate analysis. Multivariate analysis revealed age, previous CVA, and chronic renal impairment as predictors of CVA. Ten (83.3%) of the 12 patients were diagnosed to have CVA in the first 24 hours. Length of hospital stay was 20.9 ± 20.34 days for CVA patients and 9.2 ± 5.17 days for non-CVA patients (p ≤ 0.001). There were 4 (33.3%) deaths in CVA group and 27 (3.2%) for non-CVA patients (p = 0.001). Postoperative CVA is a major contributor to mortality, prolonged hospitalization, and other adverse postoperative complications. Further studies are needed to develop better strategies to minimize the occurrence of CVA among patients undergoing CABG.
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Ibrahim et al. (2014) conducted a cohort in Coronary artery disease requiring isolated CABG (n=855). Isolated coronary artery bypass grafting (CABG) was evaluated on Incidence of cerebrovascular accident (CVA). Isolated CABG surgery resulted in a 1.4% incidence of postoperative CVA, which was associated with significantly higher mortality (33.3% vs 3.2%, p=0.001) compared to patients without CVA.
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