Abstract: Objective To explore the impact of obesity on postoperative morbidity and mortality after pneumonectomy. Methods Clinical data of 3 494 patients with pulmonary diseases who underwent pneumonectomy in Shanghai Pulmonary Hospital from September 2003 to December 2007 were retrospectively analyzed. All the 3 494 patients were divided into two groups according to the patients’ preoperative body mass index (BMI). There were 3 340 patients in the non-obesity group (BMI<28 kg/m2) including 2 502 males and 838 females with their average age of 61.9±10.7 years, and 154 patients in the obesity group (BMI≥28 kg/m2) including 87 males and 67 females with their average age of 59.7±9.6 years. Univariate analysis and logistic regression were used to analyze the impact of obesity (BMI≥28 kg/m2) on postoperative morbidity after pneumonectomy. Results There were a total of 26 cases of perioperative death, including 23 patients in the non-obesity group and 3 patients in the obesity group. There was no statistical difference in mortality between the two groups [0.7% (23/3 340) vs. 1.9% (3/154), P=0.118]. There was no statistical difference in any particular postoperative morbidity or incidence of pulmonary complications between the two groups (P>0.05). Other than pulmonary complications, the incidence of postoperative complication in other body systems of the obesity group was significant higher than that of the non-obesity group (P<0.05). The incidence of cerebrovascular accidents, myocardial infarction and acute renal failure of the obesity group was significant higher than those of the non-obesity group (P<0.05). Logistic regression showed that obesity (BMI≥28 kg/m2) was not an independent risk factor for postoperative morbidity after pneumonectomy [B=0.648, OR=1.911, 95% CI(0.711, 5.138),P=0.199]. Conclusion Obesity is not a significant risk factor of postoperative mortality or morbidity after pneumonectomy.
Citation: SONG Nan,JIANG Gening,WANG Haifeng,LIU Ming,HE Wenxin,ZHANG Peng,DING Jiaan.. Impact of Obesity on Postoperative Morbidity after Pneumonectomy. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2013, 20(1): 74-78. doi: Copy