Stroke after coronary artery bypass grafting: Preoperative predictive accuracies of CHADS2 and CHA2DS2VASc stroke risk stratification schemes

摘要: Objective Neurologic events after coronary artery bypass grafting are an infrequent but devastating complication. This study analyzed the preoperative predictive abilities of CHADS 2 and CHA DS VASc stroke scores in patients undergoing isolated grafting. Methods Included were 2910 who underwent during a 19-year period. computed for all patients, outcomes evaluated terms perioperative compared with specific models predicting surgical (Northern New England Cardiovascular Disease Study Group Multicenter Perioperative Ischemia Research Group). discrimination was quantified by computing area under receiver operating characteristic curve. Results Overall, 62 (2.1%) had strokes. Areas curve 0.71 (95% confidence interval, 0.64-0.78) , 0.72 0.65-0.79) VASc, 0.69 0.61-0.76) Northern Group, 0.73 0.67-0.80) scores. better at discriminating particularly low or high risk stroke. Conclusions predicted strokes discriminatory similar to those models. All schemes tested showed limitations postoperative risk, proportion being classified as having intermediate risk.