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This research is being done to determine the resistance across stenosis in the airway.
There is significant utility in objectively measuring airflow as subjects, undergoing endoscopic laryngeal surgery, commonly have difficulties with airflow secondary to their stenosis. Easier and quicker quantification will tailor diagnosis and treatment. In order to obtain an objective measure of airflow in these participants, we will place a 20-gauge angiocatheter needle into the airway. The catheter will be in situ for a short duration during several spontaneous and non-spontaneous breaths. This will be achieved via the existing tracheostomy stoma or percutaneously via the cricothyroid membrane. This technique is commonly used to access the muscles of the larynx, however, the primary purpose will be to measure airflow in this setting.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Laryngotracheal Stenosis | Patients with laryngotracheal stenosis will have pressure sensors placed proximal and distal to the stenosis. Pressure and air flow will be measured |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Measure Airway Resistance Across Stenosis | Diagnostic Test | Measure pressure and air flow Across Stenosis |
|
| Measure | Description | Time Frame |
|---|---|---|
| Pressure (cm H20) | Using a pressure gauge to measure pressure at locations in the airway | Up to One Year |
| Measure | Description | Time Frame |
|---|---|---|
| Flow Rate (L/min) | using a flow sensor to measure low rate at locations in airway | Up to One Year |
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Inclusion Criteria:
Exclusion Criteria:
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Patients that require outpatient endoscopic laryngeal airway surgery in the operating room.
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| Name | Affiliation | Role |
|---|---|---|
| Alexander Hillel, MD | Johns Hopkins University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Johns Hopkins Hospital | Baltimore | Maryland | 21287 | United States |
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