• Mamdouh M Shubair, Poornima Prabhakaran, Viktoria Pavlova, James L Velianou, Arya M Sharma, and Madhu K Natarajan.
• Department of Medicine, McMaster University, Hamilton Health Sciences (General Site), Hamilton, Ontario, Canada.
• J Interv Cardiol. 2006 Oct 1; 19 (5): 388-95.

ObjectivesTo evaluate the effect of body mass index (BMI) on in-hospital outcomes in patients undergoing percutaneous coronary intervention (PCI) at a tertiary care hospital center in Ontario, Canada.BackgroundObesity is present in a large population of patients undergoing revascularization with PCI.MethodsRetrospective analysis of 4,631 patients aged 62.0 +/- 12 years, stratified by BMI into five groups: nonobese (<25 kg/m2); overweight (25-29.9 kg/m2); class I obese (30-34.9 kg/m2); class II obese (35-39.9 kg/m2); and class III obese (> or =40 kg/m2).ResultsA BMI >25 kg/m2 was present in 79% of patients, and 35% were obese (BMI > or =30 kg/m2). Obese patients, particularly the class III obese, were significantly younger and had higher prevalence of diabetes, hypertension, and dyslipidemia (P < 0.0001). After adjustment for several covariates, lower BMI was independently associated with higher risk of major bleeding requiring transfusion (adjusted odds ratio [OR]= 1.40, 95% confidence interval [CI] 1.04-1.88, P = 0.025), and femoral hematoma (adjusted OR = 1.14, 95% CI 1.05-1.25, P = 0.003) in lean (<20 kg/m2) and normal BMI (20-24.9 kg/m2) patients. Obesity was not associated with death, myocardial infarction, repeat PCI, coronary artery bypass grafting, or major adverse cardiac event.ConclusionsObesity is not associated with increased risk of adverse postprocedural in-hospital outcomes. These findings, however, do not discount the need for sustained efforts in secondary prevention of obesity and its consequences.

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