Airflow Perturbation Device (APD) for the Evaluation of Pulmonary and Sleep Disorders

Walter Reed National Military Medical Center

Status: Completed

Conditions: Airway Obstruction

Treatments: Diagnostic Test: Airflow pertubation device

Study type: Observational

Funder types: Other U.S. Federal agency

Identifiers

NCT03054116

383145

Details and patient eligibility

About

In a prospective, observational study the investigators compared resistance values measured using the airway perturbation device (APD) to impulse oscillometry and spirometry. The investigators also created reference equations for normal APD resistance ranges using the data from clinically normal volunteers.

Enrollment: 199 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Male and female subjects > 18 years
• Referred for PFTs and/or PSG at WRNMMC
• All races and ethnicities will be included
• Pregnant women will be included

Exclusion criteria

• < 18 years of age
• If mental status is questionable, the patient will be excluded at the discretion of the consenting provider
• Unable/unwilling to follow the directions necessary for APD use