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Impact of obesity on outcome of patients undergoing off-pump coronary artery bypass grafting using aorta no-touch technique.

TitleImpact of obesity on outcome of patients undergoing off-pump coronary artery bypass grafting using aorta no-touch technique.
Publication TypeJournal Article
Year of Publication2010
AuthorsPrapas, S. N., Panagiotopoulos I. A., Ayyad M. A. K. Salama, Protogeros D. A., Linardakis I. N., Kotsis V. N., Katinioti A. A., & Michalopoulos A. S.
JournalInteract Cardiovasc Thorac Surg
Volume11
Issue3
Pagination234-7
Date Published2010 Sep
ISSN1569-9285
KeywordsAged, Aged, 80 and over, Body Mass Index, Chi-Square Distribution, Coronary Artery Bypass, Off-Pump, Coronary Artery Disease, Female, Greece, Hospital Mortality, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Obesity, Prospective Studies, Risk Assessment, Risk Factors, Survival Rate, Treatment Outcome
Abstract

We prospectively examined 1359 adult patients undergoing isolated coronary revascularization with the Pi-circuit technique, consisting of beating heart, aorta no-touch, use of composite grafts, and off-pump arterial revascularization. Patients were divided into two groups based on body weight; Group A consisting of 295 (21.7%) obese patients [body mass index (BMI) > or =30 kg/m(2)] and Group B of 1064 (79.3%) non-obese patients (BMI <30 kg/m(2)). Advanced age and emergency surgery favored the non-obese group [63.0+/-10.4 vs. 65.3+/-9.6 years (P<0.0005) and 10.2% vs. 17.1% (P=0.004), with an increase in the number of octogenarians among them (1.7% Group A vs. 5.4% in Group B, P=0.11)]. The use of double internal mammary arteries (90.5% in Group A vs. 86.9% in Group B, P=0.109), the mean number of distal anastomoses (2.8+/-0.9 in Group A vs. 2.7+/-0.9 in Group B, P=0.5) and the number of sequential anastomoses performed (28.1% in Group A vs. 31% in Group B, P=0.3) were similar. No difference in morbidity rates was detected. All cause in-hospital mortality was comparable. Survival was similar in both groups also. Obesity is not a risk factor for morbidity and mortality in this group of patients.

DOI10.1510/icvts.2010.234443
Alternate JournalInteract Cardiovasc Thorac Surg
PubMed ID20542981

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