Korean J Med.
2007 Dec;73(6):603-610.
The clinical effects of body mass index in patients with acute myocardial infarction after percutaneous coronary intervention
- Affiliations
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- 1The Heart Center of Chonnam National University Hospital, Chonnam National University Research Institute of Medical Sciences, Gwangju, Korea. myungho@chollian.net
Abstract
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BACKGROUND: Obesity is one of the major risk factors for coronary artery disease. However, the long-term clinical effects of obesity after percutaneus coronary intervention (PCI) in Korean patients with acute myocardial infarction (AMI) have not been sufficiently evaluated.
METHODS
A total of 309 patients (mean age 60.5+/-11.3 years, M:F=243:66) that underwent PCI with a diagnosis of AMI between February 2002 and June 2006. Thepatients were divided into two groups according to the body mass index (BMI): group I (n=194; BMI <25 kg/m2; mean age 61.7+/-11.1 years, M:F=151:43) and group II (n=115; BMI> or =25 kg/m2, mean age 58.2+/-11.3 years, M:F=92:23). Clinical characteristics and risk factors, and major adverse cardiac events during a six-month follow-up were compared between patients in the two gropus.
RESULTS
The mean age of group I patients was older than that of group II patients (61.7+/-11.1 years vs. 58.6+/-11.5 years, p=0.017). The prevalence of hypertension was higher in group II patients (75/194, 38.7% vs.59/115, 51.3%, p=0.033) and hyperlipidemia was more prevalent in group II patients (75/194, 38.7% vs. 60/115, 52.2%, p=0.024). The levels of total cholesterol (184.3+/-39.9 mg/dL vs. 201.4+/-42.6 mg/dL, p=0.001), triglycerides (121.2+/-61.6 mg/dL vs. 147.1+/-96.2 mg/dL, p=0.005), low-density lipoprotein-cholesterol (120.3+/-35.1 mg/dL vs. 134.1+/-37.8 mg/dL, p=0.002) were lower in group I patients than in group II patients. The restenosis rate on a follow-up coronary angiogram was higher in group II patients (18/69, 26.1%) than in group I patients (14/109, 12.8%, p=0.025).
CONCLUSIONS
Obesity is associated with hyperlipidemia and hypertension in patients with AMI. The restenosis rate after PCI was higher in obese AMI patients.
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