Association between body mass index and outcome of coronary artery bypass

Harvey, Ryan, Haluska, Brian, Mundy, Julie, Wood, Annabel, Griffin, Rayleene and Shah, Pallav (2011) Association between body mass index and outcome of coronary artery bypass. Asian Cardiovascular and Thoracic Annals, 19 5: 333-338. doi:10.1177/0218492311419448

Author Harvey, Ryan
Haluska, Brian
Mundy, Julie
Wood, Annabel
Griffin, Rayleene
Shah, Pallav
Title Association between body mass index and outcome of coronary artery bypass
Journal name Asian Cardiovascular and Thoracic Annals   Check publisher's open access policy
ISSN 0218-4923
Publication date 2011
Year available 2011
Sub-type Article (original research)
DOI 10.1177/0218492311419448
Open Access Status
Volume 19
Issue 5
Start page 333
End page 338
Total pages 6
Place of publication London, United Kingdom
Publisher Sage Publications Ltd.
Collection year 2011
Language eng
Subject 2700 Medicine
2705 Cardiology and Cardiovascular Medicine
2740 Pulmonary and Respiratory Medicine
2746 Surgery
Abstract Studies have shown disparate findings regarding body mass index and outcomes after coronary artery bypass. We analyzed body mass index and other clinical variables that might predict morbidity and mortality after primary isolated coronary artery bypass. Data on 4,425 patients (79% men) were reviewed retrospectively. They were classified as underweight (1.6%), normal weight (65%), obese (32%), and morbidly obese (1.4%) according to body mass index <20, 20-29, 30-39, and > 40 kg·m -2, respectively. Multiple logistic regression was used for correlates of 30-day outcome. Cox regression was used for predictors of late outcome in underweight and morbidly obese patients. There were 45 (1%) deaths and 234 (5%) cases of morbidity within 30 days. Independent correlates of 30-day morbidity were smoking, logistic EuroSCORE, blood and blood product transfusions. Correlates of 30-day mortality were logistic EuroSCORE and blood transfusion. The only independent predictor of late death in underweight and morbidly obese patients was preoperative arrhythmia. Body mass index was not a predictor of 30-day morbidity or mortality. The 1-, 3-, and 7-year survival rates were not significantly different between underweight and morbidly obese patients. Body mass index did not affect short-term outcomes after primary coronary artery bypass grafting.
Keyword Body mass index
Coronary artery bypass
Risk factors
Treatment outcome
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
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