IBV Valve System for the Treatment of Prolonged Air Leak Under HDE H060002 - Post Approval Study

Inclusion Criteria: * Subject has an air leak present on day 7 after lobectomy, segmentectomy, or lung volume reduction surgery (LVRS), or on day 5 if the air leak is 1) continuous, 2) present during normal inhalation phase of inspiration, or 3) present upon normal expiration and accompanied by subcutaneous emphysema or respiratory compromise Exclusion Criteria: * Air leak only on force exhalation or cough * Subject has significant active asthma, pneumonia, bacterial bronchitis or clinically significant bronchiectasis * Subject is unable to provide informed consent and there is no designated authority to sign for the incapacitated patient * Subject is not an appropriate candidate for, or unable to tolerate, flexible bronchoscopy procedures * Subject has co-morbidities or factors that will prevent follow-up during the study period