The Korean Journal of Medicine

The Korean Association of Internal Medicine (대한내과학회)
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Clinical Applications of Bronchoscopic Lung Volume Reduction for Patients with Severe Emphysema

중증 폐기종 환자에서 내시경적 폐용적 축소술의 임상 적용

  • Park, Tai Sun (Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Lee, Sei Won (Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine)
  • 박태선 (울산대학교 의과대학 서울아산병원 호흡기내과) ;
  • 이세원 (울산대학교 의과대학 서울아산병원 호흡기내과)
  • Published : 2014.04.01
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Abstract

Emphysema is a category of chronic obstructive pulmonary disease characterized by chronic airflow limitation and hyperinflation. Several decades ago, it was found that the surgical resection of emphysematous lung improved lung function and the long-term survival in patients with severe advanced emphysema. However, it was associated with substantial postoperative morbidity, such as persistent air-leak and mortality. Therefore, bronchoscopic lung volume reduction (BLVR) techniques have been developed to avoid these risks associated with surgery. Of these, endobronchial valves have been subject to the largest number of clinical trials. Endobronchial valves are unidirectional valves placed in the bronchus of the most hyperinflated lobe to block regional inflation, while allowing exhalation, leading to atelectasis of the target lobe. BLVR using endobronchial valves improves lung function, exercise tolerance, and symptoms. To obtain the maximum clinical benefits, it is important to select patients who have a complete lobar fissure and heterogeneous emphysematous lung involvement. Other bronchoscopic approaches are being developed to overcome these limitations.

Keywords

References

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