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Effect of smoking status on mortality and morbidity following coronary artery bypass surgery
ASHRAF MN; MORTASAWI A; GRAYSON AD
THORAC CARDIOVASC SURG , 2004, vol. 52, n° 5, p. 268-273 Doc n°: 116358 Localisation : Documentation IRR Descripteurs : FA421 - CHIRURGIE DES CORONAIRES We aimed to examine the effect of smoking on outcomes following coronary artery bypass grafting (CABG). Methods: We retrospectively analysed 6 367 consecutive patients who underwent CABG between April 1997 and March 2003. Logistic regression was used to risk adjust in-hospital outcomes, while Cox proportional hazards analysis was used to risk adjust Kaplan-Meier survival curves. Outcomes were adjusted for variables suggested by the American Heart Association and American College of Cardiology. Results: 947 (14.9%) patients were current smokers (smoking within 1 month of surgery), while 3857 (60.6%) were ex-smokers and 1563 (24.5%) were non-smokers. After adjusting for differences in case-mix, current smokers were more likely to develop chest infections (p<0.001), atelectasis (p<0.001), and require ventilation longer than 48 hours (p=0.003). Current smokers were also more likely to stay in intensive care for more than 3 days (p<0.001). Ex-smokers were not associated with excess mortality (p=0.11), while current smokers had significantly increased mortality during follow-up (p=0.029). Conclusions: Patients should be encouraged to stop smoking to maximise the long-term benefits of CABG. Langue : ANGLAIS Tiré à part : OUI |
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