Impact of body mass index on In-Hospital outcomes following percutaneous coronary intervention (report from the New York State Angioplasty Registry)1
Section snippets
Patient population
The New York State Coronary Angioplasty Reporting System was initiated in 1991. It represents a collaborative effort between the New York State Department of Health and all New York State hospitals with privileges to perform angioplasty. The registry provides a mechanism for uniform reporting of all angioplasty procedure results and generates a database for evaluation of clinical outcomes as well as for dissemination of pertinent information for physicians, hospitals, and the general public.
Patient population
Baseline patient clinical characteristics and angiographic data are listed in Table 1. Obese patients accounted for 29.7% of all PCIs performed. Patients with a higher BMI were more likely to be younger, with an average age difference of >10 years across all BMI groups. Obese patients were more likely to be diabetic and hypertensive. However, they were less likely to have congestive heart failure, acute coronary syndromes (unstable angina or acute myocardial infarction), to have a history of
Discussion
This analysis is the largest to date demonstrating the impact of BMI and in-hospital outcomes after PCI. Several reports have found extremes of BMI to be associated with worse outcomes. Ellis et al8 found patients with BMI of ≤25 kg/m2 and >35 kg/m2 to have an increase in fatal risk after PCI, with higher rates of in-hospital mortality. Powell et al6 found a similar relation between mortality and BMI after PCI, with an increased risk at the very extremes of BMI. In contrast, Gurm et al5
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*This study was performed with the permission of the New York State Department of Health, which retains ownership of the registry.