Risk factors for late extubation after coronary artery bypass grafting.
OBJECTIVE
To evaluate the independent risk factors for late extubation after coronary artery bypass grafting (CABG).


METHODS
Preoperative, intraoperative, and postoperative characteristics of patients undergoing isolated CABG between June 2005 and June 2008 at the Tongji Hospital were retrospectively analyzed. Elapsed time between CABG and extubation of more than 8hours was defined as late extubation.


RESULTS
The incidence of late extubation after CABG was 69.23% (288/416). Through univariate and logistic regression analysis, the independent risk factors for late extubation after CABG were older age (odds ratio [OR]=4.804), duration of cardiopulmonary bypass (OR=2.426), perioperative use of intra-aortic balloon pump (OR=1.451), preoperative arterial oxygen partial pressure (OR=.204), and postoperative hemoglobin level (OR=.793).


CONCLUSIONS
Older age, prolonged cardiopulmonary bypass time, perioperative intra-aortic balloon pump requirement, low preoperative arterial oxygen partial pressure, and low postoperative hemoglobin level were identified as the 5 independent risk factors for late extubation after CABG.
Ji
Qiang
Q
Department of Thoracic Cardiovascular Surgery of Tongji Hospital of Tongji University, Shanghai, P.R. China. jiqiang1977@yahoo.com.cn <jiqiang1977@yahoo.com.cn>
Chi
Liangjie
L
Mei
Yunqing
Y
Wang
Xisheng
X
Feng
Jing
J
Cai
Jiangzhi
J
Sun
Yifeng
Y
D000368:Aged; D015992:Body Mass Index; D002302:Cardiac Output; D002315:Cardiopulmonary Bypass / Q000706:statistics & numerical data; D002681:China; D016001:Confidence Intervals; D001026:Coronary Artery Bypass / Q000451:nursing*; D005260:Female; D006801:Humans; D015994:Incidence; D007362:Intensive Care Units / Q000706:statistics & numerical data; D007902:Length of Stay; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D016017:Odds Ratio; D010101:Oxygen Consumption; D013527:Perioperative Nursing; D011182:Postoperative Care / Q000379:methods*; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D015300:Ventilator Weaning / Q000706:statistics & numerical data*