CardiologyCardiologycoronary artery bypass grafting
Multiarterial Grafting and Survival After Coronary Artery Bypass Grafting: An Instrumental Variable Analysis
By MedXY|May 19, 2026
In a large Medicare study, multiarterial grafting after CABG looked beneficial in standard analysis, but the advantage disappeared with instrumental variable adjustment, suggesting earlier observational studies may have overestimated surviv