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Eur J Cardiothorac Surg 2002;21:483-488
© 2002 Elsevier Science NL

Long-term results of lung volume reduction surgery

^a Department of Thoracic Surgery and Endoscopy, Ruhrlandklinik, Tüschener Weg 40, 45239 Essen, Germany.
^b Department of Pneumology and Sleep medicine, Ruhrlandklinik, Tüschener Weg 40, 45239 Essen, Germany.

Received 21 August 2001; received in revised form 10 December 2001; accepted 18 December 2001.

* Corresponding author. Tel.: +49-201-433-4011; fax: +49-201-433-2009
e-mail: g.stamatis-ruhrlandklinik{at}t-online.de

Objective: Lung volume reduction surgery (LVRS) is effective in the short and intermediate term for the improvement of pulmonary function and subjective symptoms in selected patients with advanced emphysema. The purpose of this study was to examine the long-term functional results of LVRS and to investigate which subgroups would benefit in terms of long-term survival. Methods: All records of the patients who underwent LVRS between 1994 and, 1998 at our hospital were reviewed. Results: Eighty-eight consecutive patients underwent LVRS during the period. There were 62 men and 26 women with an average age of 56.1 years (range 34–72 years). Eleven patients with 1-antitrypsin deficiency were included. The perioperative mortality rate (<90 days) was 2.3% (n=2). Total lung capacity (7.5±0.3 l) and residual volume (4.8±0.3 l) at 3 years remained lower than baseline (9.2±0.2 l, 6.5±0.2 l, each) (P<0.001). The mean forced expiratory volume in 1 s (FEV₁) at 3 years (0.86±0.08 l) was higher than baseline (0.78±0.02 l), but the difference did not reach statistical significance. The FEV₁ of the patients with 1-antitrypsin deficiency and of those with respiratory bronchiolitis returned to baseline at one year after LVRS and showed further deterioration. Overall survival rate at 5 years was 71.0% with the mean length of follow-up of 54.2 months. The survival difference was statistically significant between patients with preoperative FEV₁28.5% and those with FEV₁<28.5% (P=0.0152). Conclusions: The improvement of total lung capacity and residual volume persisted long after the operation. Patients with 1-antitrypsin deficiency and those with bronchiolitis showed early deterioration of the lung function. Patients with higher preoperative FEV₁ had a survival benefit. The favorable long-term survival might justify LVRS for the treatment of selected patients with severe emphysema.

Key Words: Chronic obstructive pulmonary disease • Emphysema • Forced expiratory volume in 1 s • Long-term survival • Lung volume reduction surgery

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