Obesity in Diabetic Patients Undergoing Coronary Artery Bypass Graft Surgery Is Associated with Increased Postoperative Morbidity

9,862 patients undergoing primary coronary artery bypass surgery between January 1995 and December 2004 at the Texas Heart Institute, including diabetic (n=3,374) and nondiabetic (n=6,488) patients, classified by BMI into normal weight (n=2,148), overweight (n=4,257), mild obesity (n=2,298), moderate obesity (n=785), or morbid obesity (n=338).

Obesity (exposure)

Normal weight (non-obese)

Adverse postoperative outcomes including respiratory failure, ventricular tachycardia, atrial fibrillation, atrial flutter, renal insufficiency, leg wound infection, mortality, stroke, myocardial infarction, sepsis, and sternal wound infectionhard clinical