Please select the eligibility criteria that correspond to the clinical trial below.
Title: Endobronchial Valve for Emphysema Palliation Trial (VENT)
Brief Summary: The purpose of this study is to assess the safety and efficacy of the Emphasys Endobronchial Valve (EBV) and procedure (with pulmonary rehabilitation) compared to optimal medical management (with pulmonary rehabilitation) in patients with heterogeneous emphysema.


Options:
A: Inclusion Criteria:

* clinical diagnosis of advanced upper lobe predominant emphysema
* age \>/= 40 years
* clinically significant dyspnea
* failure of standard medical therapy to relieve symptoms (inhaled beta agonist and inhaled anticholinergic)
* pulmonary function tests within protocol-specified ranges (post bronchodilator FEV1 \< 45% predicted and experiencing \< 30% or 300 mL improvement using bronchodilator; TLC \> 110% predicted; RV \> 150% predicted)
* 6 Minute Walk Distance \>/= 150 m

Exclusion Criteria:

* alpha-1 protease inhibitor deficiency
* homogeneous disease
* tobacco use within 4 months of initial visit
* body mass index \< 15 kg/m2 or \> 35 kg/m2
* clinically significant asthma, chronic bronchitis or bronchiectasis
* allergy or sensitivity to procedural components
* pregnant, lactating or unwilling to use birth control if required
* prior lung volume reduction surgery, lobectomy, pneumonectomy, lung transplant, endobronchial valve placement, airway stent placement or pleurodesis
* comorbid condition that could adversely influence outcomes
* inability to tolerate bronchoscopy under conscious sedation (or anesthesia)
B: Inclusion Criteria:

* Diagnosed by high-resolution computed tomography (HRCT) with eligible heterogeneous disease distribution
* Forced expiratory volume in 1 second (FEV1) \< 45% predicted
* Total lung capacity (TLC) \> 100% predicted
* Residual volume (RV) \> 150% predicted
* Post rehabilitation 6 minute walk test \> 140m
* Non-smoking for 4 months

Exclusion Criteria:

* Prior lung transplant, LVRS, median sternotomy, bullectomy or lobectomy
* History of recurrent respiratory infections
* Evidence of large bullae (\>30% of either lung) in a non-target lobe
* FEV1 \< 15% predicted
* Diffusing capacity for carbon monoxide (DLCO) \< 20% predicted
C: Inclusion Criteria:

* Patient greater than or equal to 35 years of age
* High resolution CT scan indicates unilateral or bilateral emphysema
* High resolution CT scan indicates homogeneous or heterogeneous emphysema
* Patient has post-bronchodilator FEV1 less than or equal to 45% predicted
* Total Lung Capacity greater than 100% predicted
* Patient has marked dyspnea scoring greater than or equal to 2 on mMRC scale of 0-4
* Patient has stopped smoking for a minimum of 8 weeks prior to entering the study
* Patient (and legal guardian if applicable) read, understood and signed the Informed Consent form

Exclusion Criteria:

* Patient has a change in FEV1 greater than 20% post-bronchodilator
* Patients DLCO less than 20% predicted
* Patient has a history of recurrent clinically significant respiratory infection
* Patient has uncontrolled pulmonary hypertension defined by right ventricular pressure greater than 50mm Hg and/or evidenced by echocardiogram
* Patient has an inability to walk greater than 140 meters (150 yards) in 6 minutes
* Patient has evidence of other disease that may compromise survival such as lung cancer, renal failure, etc
* Patient is pregnant or lactating
* Patient has an inability to tolerate bronchoscopy under heavy sedation or anesthesia
* Patient has clinically significant bronchiectasis
* Patient has giant bullae greater than 1/3 lung volume
* Patient has had previous LVR surgery, lung transplant or lobectomy
* Patient has been involved in other pulmonary drug studies with 30 days prior to this study
* Patient is taking greater than 20 mg prednisone (or similar steroid) daily
* Patient is on Plavix or has not been weaned off prior to procedure
* Patient has other disease that would interfere with completion of study, follow up assessments or that would adversely affect outcomes
D: Inclusion Criteria:

* Bilateral emphysema on Chest CT Scanner
* Post bronchodilator FEV1 \< 50 %
* Total Lung Capacity \> 100 %
* Residual Volume \> 220 %
* Dyspnea score between 2 and 4 based on the mMRC scale
* Stopped cigarette smoking for more than 8 weeks
* Pulmonary rehabilitation within the previous twelve months
* Consent form signed
* Covered by Medical Insurance

Exclusion Criteria:

* Post bronchodilator FEV1 \< 15%
* Post-bronchodilator change in FEV1 \> 20%
* Severe recurrent respiratory infections requiring more than 2 hospitalization stays within the past twelve months
* COPD exacerbation requiring hospital stay within 3 months
* Pulmonary Hypertension (Pulmonary systolic pressure \>50 mmHg on cardiac echo)
* Patient unable to perform a 6-min walking test in room air
* Giant bulla of more than 1/3 of the lung field on Chest CT
* Strictly homogeneous emphysema on Chest CT
* Clinically significant bronchiectasis
* Past history of lobectomy, lung volume reduction surgery, lung transplantation
* Any extrapulmonary diseases compromising survival or evaluation within the protocol (severe cardiac disease, severe renal insufficiency, cancer...)
* Lung carcinoma or pulmonary nodule on CT scan requiring Chest CT scan follow-up
* Contra-indication to general anesthesia
* Oral anticoagulant treatment (antivitamin K)
* Allergy to nitinol
* Inclusion in an other study assessing respiratory treatments
* Patient protected by the law

Answer: B