None listed
Conditions
Brief summary
The primary purpose of this study is to evaluate the safety and effectivness of a bilateral application of bronchoscopic thermal vapour ablation (BTVA) for lung volume reduction in patients diagnosed with heterogeneous upper lobe emphysema.
Interventions
Vapour (steam) is infused into a targeted emphysematous lung segment for approximately 3 - 10 seconds. Up to 7 lung segments within the right and left upper lobes of the lung will be treated in one procedure. Patients in the first cohort will receive a prescribed amount of vapour (target vapour dose) delivered to each lung segment of 7.5 calories per gram of lung tissue. A second cohort of patients may be treated with a target vapour dose of 10 calories per gram of lung tissue after 3 month follow-up results are reviewed.
Sponsors
Study design
Eligibility
Inclusion criteria
Heterogeneous emphysema with upper lobe predominance confirmed by computerized tomography (CT) and quantitative differential ventilation and perfusion scan; Able to walk at least 140 meters; non-smoking for 3 months prior to study enrollment; completed pulmonary rehabilitation program
Exclusion criteria
Known alpha 1 antitrypsin deficiency; previous heart or lung transplant or lung; previous history of unstable myocardial ischemia; FEV1 < 15%