• Bin Hu, Sheng-cai Hou, Hui Li, Tong Li, Yang Wang, Zhen-kui Zhang, Jin-bai Miao, Yi-li Fu, and Bin You.
• Department of Thoracic Surgery, Institute of Respiratory Medicine, Beijing Chaoyang Hospital, Capital University of Medical Sciences, Beijing 100020, China. hubin 2102@yahoo.com.cn
• Zhonghua Wai Ke Za Zhi. 2007 Apr 15;45(8):552-4.

ObjectiveTo compare changes in early pulmonary function and hemodynamics between unilateral and bilateral lung volume reduction (LVRS) for severe chronic obstructive pulmonary disease (COPD).MethodsEighty-six patients with severe COPD underwent LVRS, 61 underwent unilateral LVRS and 25 underwent lateral LVRS. The results of lung function (FEV(1), RV, TLC), arterial blood gas analysis (PaO(2), PaCO(2)) and color Doppler echocardiography (CO, CI, EF, PAP) were evaluated preoperatively and 3, 6 months postoperatively.ResultsSix patients died. FEV(1), RV and TLC were improved significantly after (P < 0.05). PaO(2) increased (P < 0.05) and PaCO(2) decreased postoperatively (P < 0.05). According to the Doppler echocardiography there were no statistic difference in cardia functions (CO, CI, EF, PAP) between unilateral and bilateral LVRS preoperatively and 3, 6 months postoperatively.ConclusionsUnilateral and bilateral LVRS is safe and effective in the treatment of patients with severe COPD, the pulmonary function significantly improved postoperatively, but the results of bilateral LVRS is better than unilateral. Both unilateral and bilateral LVRS showed no significant deterioration in hemodynamics, there were no significant difference between preoperatively and postoperatively.

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