Objective: To evaluate the mid long term outcome of lungvolumereduction surgery (LVRS) in patients with severe emphysema.
目的评价肺减容术（LVRS）治疗重度肺气肿的中长期疗效、手术指征选择及围术期处理经验。
2
Objective To investigate the feasibility of lungvolumereduction surgery (LVRS) for the treatment of chronic obstructive emphysema.
目的为了提高肺气肿患者生存质量，探讨肺减容手术治疗慢性阻塞性肺气肿的可行性。
3
Objective:To evaluate the feasibility and safety of lungvolumereduction by percutaneous trans-tracheal bronchial embolization with ethanol and lipidol.