This trial is active, not recruiting.

Conditions sleep apnea syndromes, snoring
Sponsor Oregon Health and Science University
Start date September 2014
End date October 2016
Trial size 52 participants
Trial identifier NCT02470182, IRB00010124


The purpose of this study is to learn more about breathing disorders during sleep. The investigators want to learn how breathing sounds made during sleep relate to breathing disorders during sleep.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Observational model case-only
Time perspective cross-sectional
Overnight sleep at home (30 subjects)
Overnight sleep at the OHSU sleep lab during routine polysomnography (30 subjects)
Overnight sleep at the OHSU sleep lab during routine polysomnography, followed by overnight sleep at home (30 subjects)

Primary Outcomes

Non-typical breathing sounds or patterns correspond to oxygen desaturation
time frame: On the day of the study only (1 day)

Eligibility Criteria

Male or female participants from 21 years up to 89 years old.

Inclusion Criteria: - Age 21-89 - No self-reported sleep breathing problems Exclusion Criteria: - Prior diagnosis for a sleep breathing problem (such as sleep apnea) - Self-reported insomnia - History of stroke - Nasal or soft palate surgery in the last 12 months - Use of a breathing assistance device (such as a CPAP machine)

Additional Information

Official title Screening for Sleep Disordered Breathing With Minimally Obtrusive Sensors
Principal investigator Jan van Santen, Ph.D.
Description The purpose of this study is to evaluate the feasibility of assessing breathing problems during sleep with minimally obtrusive sensors (a bedside microphone and wireless pulse oximeter worn on the fingertip). The investigators will use the data collected with these sensors to develop algorithms for automatically detecting sleep apnea events. Subjects will be asked to place unobtrusive sensors (bedside microphone and wireless pulse oximeter) in their home sleep environment. The subjects will start the at-home data collection before they fall asleep, and stop the data collection the next morning when they wake. The subjects will then return the sensors to the investigator for analysis. We are looking for people interested in participating in the at-home portion of our study. We will only collect at-home data for one night of sleep per subject. After this one night, no further data collection or monitoring will occur. Subjects will be compensated for their time. A standard sleep-breathing questionnaire (the "Berlin Questionnaire") will be administered. This questionnaire is widely used as a screening tool to determine if a person may have disordered breathing during sleep. This questionnaire consists of 10 multiple-choice questions related to snoring, daytime sleepiness, and other related conditions.
Trial information was received from ClinicalTrials.gov and was last updated in October 2016.
Information provided to ClinicalTrials.gov by Oregon Health and Science University.