• Qiang Ji, Yunqing Mei, Xisheng Wang, Jing Feng, Jianzhi Cai, and Wenjun Ding.
• 1. Department of Thoracic Cardiovascular Surgery of Tongji Hospital of Tongji University, Shanghai, P.R.China. 389 Xincun Rd., Shanghai, 200065, P.R. China.
• Int J Med Sci. 2013 Jan 1; 10 (11): 1578-83.

BackgroundPulmonary complications following cardiac surgery with cardiopulmonary bypass (CPB) are often associated with significant morbidity and mortality. However, few reports have focused on evaluating intra- and post-operative independent risk factors for pulmonary complications following cardiac surgery with CPB. This study aimed to evaluate peri-operative independent risk factors for postoperative pulmonary complications through investigating and analyzing 2056 adult patients undergoing cardiac surgery with CPB.MethodsFrom January 2005 to December 2012, the relevant pre-, intra-, and post-operative data of adult patients undergoing cardiac surgery with CPB in the department of cardiovascular surgery of Tongji Hospital of Tongji University in Shanghai were investigated and retrospectively analyzed. The independent risk factors for pulmonary complications following cardiac surgery with CPB were obtained through descriptive analysis and then logistic regression analysis.ResultsOne hundred and forty-three adult patients suffered from pulmonary complications following cardiac surgery with CPB, with an incidence of 6.96%. Through descriptive analysis and then logistic regression, independent risk factors for postoperative pulmonary complications were as follows: older age (>65 years) (OR=3.31, 95%CI 1.71-7.13), preoperative congestive heart failure (OR=2.95, 95%CI 1.41-5.84), preoperative arterial oxygenation (PaO2) (OR=0.67, 95%CI 0.33-0.85), duration of CPB (OR=3.15, 95%CI 1.55-6.21), intra-operative phrenic nerve injury (OR=4.59, 95%CI 2.52-9.24), and postoperative acute kidney injury (OR=3.21, 95%CI 1.91-6.67). Postoperative pulmonary complication was not a risk factor for hospital death (OR=2.10, 95%CI 0.89-4.33).ConclusionsA variety of peri-operative factors increased the incidence of pulmonary complications following cardiac surgery with cardiopulmonary bypass.

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