Correlation Between Trachebroncho Malacia/Hyperdynamic Airway Collapse And Obstructive Sleep Apnea
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ClinicalTrials.gov Identifier: NCT02097212 |
Recruitment Status :
Completed
First Posted : March 27, 2014
Last Update Posted : March 29, 2017
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Condition or disease |
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Trachebronchomalacia (TBM) Hyper Dynamic Airway Collapse (HDAC) Obstructive Sleep Apnea (OSA) |
Tracheobronchomalacia (TBM) and HyperDynamic Airway Collapse (HDAC) are two distinct airway diseases that lead to airway collapse which can in turn lead to the symptoms of dyspnea, cough, and inability to expectorate sputum effectively. TBM entails flaccid tracheal and bronchial cartilages leading to airway collapse, emanating primarily from the anterior wall of the lumen. It is seen in conditions such as Relapsing Polychondritis and saber sheath tracheal deformity. HDAC on the other hand is the hyper-flaccidity of the membranous portion of the tracheobronchial tree leading to airway collapse. This condition is commonly seen with obesity and severe emphysema. TBM and HDAC frequently coexist.
In patients with TBM/HDAC sleep disorders are common. Patients often complain of poor quality sleep, snoring, daytime fatigue, and somnolence. These patients are often diagnosed with Obstructive Sleep Apnea (OSA) upon workup.
Study Type : | Observational |
Actual Enrollment : | 1 participants |
Observational Model: | Cohort |
Time Perspective: | Prospective |
Official Title: | Correlation Between Trachebroncho Malacia/Hyperdynamic Airway Collapse And Obstructive Sleep Apnea |
Study Start Date : | March 2014 |
Actual Primary Completion Date : | March 2015 |
Actual Study Completion Date : | March 2015 |

- Epworth Sleepiness Scale [ Time Frame: Baseline ]The Epworth Sleepiness Scale is widely used in the field of sleep medicine as a subjective measure of a patient's sleepiness. The test is a list of eight situations in which you rate your tendency to become sleepy on a scale of 0, no chance of dozing, to 3, high chance of dozing.

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Ages Eligible for Study: | 18 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Females and males ages 18-80 years old
- Able and willing to provide written informed consent
- Existing diagnosis of TBM or HDAC or both
- No pre-existing diagnosis of OSA
- No history of reconstructive surgery of chest wall or diaphragm
Exclusion Criteria:
- Inability to provide informed consent
- Non-English speaking
- Poorly controlled congestive heart failure
- Untreated Insomnia
- Severe Coronary artery disease with active symptoms of angina
- Patient is pregnant, or plans to become pregnant in next 3 months
- Moderate to severe bronchiectasis
- Severe untreated gastroesophageal disease (GERD).
- Moderate to large hiatal hernia deemed to be atleast in part responsible for TBM/HDAC
- Airway obstruction not caused by TBM /HDAC or secondary TBM/HDAC caused by conditions such as Chronic Obstructive Pulmonary Disease (COPD).
- Active or recent (with in last one year) cancer or cancer therapy (chemotherapy, radiation therapy or surgery)
- Inability to properly perform the home sleep test
- Unreliable test data after 2 attempts
- BMI>45

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02097212
United States, Colorado | |
National Jewish Health | |
Denver, Colorado, United States, 80206 |
Principal Investigator: | Ali I Musani, MD, FCCP | National Jewish Health |
Responsible Party: | National Jewish Health |
ClinicalTrials.gov Identifier: | NCT02097212 |
Other Study ID Numbers: |
HS#-2794 |
First Posted: | March 27, 2014 Key Record Dates |
Last Update Posted: | March 29, 2017 |
Last Verified: | March 2017 |
Tracheobronchomalacia TBM HyperDynamic Airway Collapse |
HDAC Obstructive Sleep Apnea OSA |
Apnea Sleep Apnea Syndromes Sleep Apnea, Obstructive Shock Respiration Disorders Respiratory Tract Diseases |
Signs and Symptoms, Respiratory Sleep Disorders, Intrinsic Dyssomnias Sleep Wake Disorders Nervous System Diseases Pathologic Processes |