RESULTS: All 60 patients had 46 cases of lung infection, lung infection rate was 76.7 percent, which left chest through an incision surgery two cases, both through the right chest incision 8 patients, the right chest three incisions 36 patients. There are significant differences (P <0.05) after chest incision through the right chest incision incidence of lung infection. Lung infections in patients with a history of smoking and a history of diabetes, high blood pressure of the majority. Patients in the control group were 28 cases of pulmonary infection, lung infection rate in the control group was 93.3%, and 1 died. 18 patients in the experimental group, the experimental group and 60% of lung infection. Two groups of patients probability of pulmonary infection was significantly different (P <0.05), postoperative lung infection mortality rate was 1.6%.