Assessment of PPG & PAT to Detect Upper Airway Obstruction in Patients With Obstructive Sleep Apnea

Assessment of a New Photoplethysmographic (PPG) Method and a Pulse Arrival Time Method to Detect Upper Airway Obstruction in Patients With Obstructive Sleep Apnea Hypopnea Syndrome (OSAHS) in a Sleep Laboratory

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01831583

Enrollment

Registered

2013-04-15

Start date

2013-05-31

Completion date

2013-09-30

Last updated

2013-04-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep Apnea, Obstructive

Keywords

sleep apnea

Brief summary

The goal of this study is to collect raw waveform data for two separate noninvasive methods, both of which may be useful for the assessment of upper airway obstruction.

Interventions

DEVICEMeasurement of PPG waveforms

The ViSi Vital Signs Monitor will measure PPG waveforms for 4 hours.

DEVICEMeasurement of Pulse Arrival Time (PAT)

The ViSi Vital Signs Monitor will measure PAT waveforms for 4 hours.

Study design

Allocation

NON_RANDOMIZED

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

21 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Patients twenty-one years of age or older

Exclusion criteria

* Patient refusal to participate in study * Patients under 21 (twenty-one) years of age, * Referring physician's refusal to have his/her patient participate in the study. * Patients with cardiac dysrhythmia (arrhythmia), including atrial fibrillation, and frequent premature atrial and/or ventricular contractions. * Inability to obtain a Sotera cuff pressure and/or PPG signals

Design outcomes

Primary

Measure	Time frame	Description
Measurement of pulse arrival time in patients with obstructive sleep apnea syndrome.	4 - 8 hours	The goal of this study is to collect pulse arrival time data as a means for the assessment of upper airway obstruction.

Secondary

Measure	Time frame	Description
Non-invasive Photoplethysmographic (PPG) measurement in patients with obstructive sleep apnea syndrome.	4 - 8 hours	The goal of this study is to collect PPG waveforms as a means for the assessment of upper airway obstruction.

Countries

United States

Contacts

Primary ContactAnoop Karippot, M.D.

karippot@gmail.com(858) 412-7362

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026