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Surgical therapy for chronic obstructive pulmonary disease.
Fernando J Martinez1, Andrew Chang
1Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, University of Michigan Health System, 3916 Taubman Center, 1500 E. Medical Center Drive, Ann Arbor, MI 48109, USA. fmartine@umich.edu
Seminars in Respiratory and Critical Care Medicine
|August 10, 2005
Summary
Lung volume reduction surgery (LVRS) and lung transplantation offer options for severe chronic obstructive pulmonary disease (COPD) patients. Patient selection is crucial for optimizing outcomes and survival in these advanced surgical interventions.
Area of Science:
- Pulmonary Medicine
- Thoracic Surgery
- Critical Care Medicine
Background:
- Severe chronic obstructive pulmonary disease (COPD) significantly impacts patients' quality of life, causing breathlessness and exercise limitation.
- Surgical interventions like lung volume reduction surgery (LVRS) and lung transplantation are considered for advanced COPD cases.
- Identifying optimal candidates and understanding long-term outcomes are critical for these procedures.
Purpose of the Study:
- To review the efficacy and outcomes of surgical interventions for severe COPD, focusing on LVRS and lung transplantation.
- To delineate patient selection criteria for LVRS, particularly bilateral procedures.
- To discuss the long-term complications and survival rates associated with lung transplantation.
Main Methods:
- Review of existing literature on LVRS and lung transplantation for COPD.
- Analysis of patient characteristics influencing outcomes, including emphysema distribution and exercise capacity.
- Examination of survival data and complications associated with lung transplantation.
Main Results:
- LVRS can provide short-term benefits in pulmonary function and dyspnea, with dyspnea improvement better preserved long-term.
- Optimal candidates for bilateral LVRS include those with upper-lobe predominant emphysema and specific FEV1/DLCO values.
- Lung transplantation offers short-term spirometric improvement but is limited by long-term complications like bronchiolitis obliterans, with reported 5-year survival around 50%.
Conclusions:
- Patient selection is paramount for successful LVRS, with specific criteria identifying those at higher risk or with better exercise capacity improvement.
- Lung transplantation is reserved for a select group of COPD patients, typically with FEV1 < 25% or elevated paCO2.
- While surgical options exist, careful consideration of risks, benefits, and patient-specific factors is essential for managing severe COPD.