Impact of Severe Obstructive Sleep Apnea-Hypopnea Syndrome on Auditory-Cognitive Processing
1 other identifier
observational
100
1 country
1
Brief Summary
The goal of this observational study is to learn how severe obstructive sleep apnea-hypopnea syndrome (OSAHS) affects the brain's ability to process sounds and attention in adults aged 20-60 years. The main questions it aims to answer are:
- 50 adults with severe OSAHS (diagnosed by sleep tests)
- 50 healthy adults matched by age and gender Participants will:
- Complete hearing tests (MoCA)
- Undergo a 1-night sleep test (PSG)
- Wear an EEG cap for 1.5-2 hours while listening to sounds in a quiet room:
- Passive task: Relax (no response needed)
- Active task: Press a button when hearing rare sounds
- Receive ¥75/hour compensation for their time
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Dec 2024
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 11, 2024
CompletedFirst Submitted
Initial submission to the registry
June 6, 2025
CompletedFirst Posted
Study publicly available on registry
June 26, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 10, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 10, 2025
CompletedAugust 7, 2025
December 1, 2024
12 months
June 6, 2025
August 5, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Amplitude of Mismatch Negativity (MMN)
EEG-derived MMN amplitude (microvolts, μV) during oddball task. Lower values indicate impaired automatic sound change detection.
Day 1
Latency of Mismatch Negativity (MMN)
EEG-derived MMN latency (milliseconds, ms) during oddball task. Longer values indicate slower automatic processing.
Day 1
Secondary Outcomes (3)
Reaction Time in Active Auditory Oddball Task
Day 1
Accuracy in Active Auditory Oddball Task
Day 1
Inter-Trial Phase Coherence (ITPC) in Theta/Alpha/Beta Bands
Day 1
Study Arms (2)
Severe OSAHS Group
Adults aged 20-60 years with severe obstructive sleep apnea-hypopnea syndrome (AHI\>30 events/hour) confirmed by polysomnography (PSG). Participants undergo PSG, hearing tests (pure-tone audiometry, tympanometry), Montreal Cognitive Assessment (MoCA), and EEG recording during active/passive auditory oddball tasks measuring MMN, P300, and behavioral responses.
Healthy Control Group
Age/sex-matched healthy adults (20-60 years) with self-reported absence of snoring/sleep disorders. Participants complete hearing tests (pure-tone audiometry, tympanometry), Montreal Cognitive Assessment (MoCA), and EEG recording during identical auditory oddball tasks as the OSAHS group.
Eligibility Criteria
Two distinct populations: 1. Severe OSAHS Patients: * Recruited from otolaryngology clinics at Peking University First Hospital * Diagnosed via in-lab PSG (AHI\>30) 2. Healthy Controls: * Community volunteers from Beijing area * Age/sex-matched to OSAHS group
You may qualify if:
- All Participants:
- Aged 20-60 years
- Normal hearing (PTA ≤25 dB HL at 0.5,1,2,4 kHz; Type A tympanogram)
- MoCA score ≥26
- Willing to complete EEG testing
- OSAHS Group Additional:
- \- PSG-confirmed severe OSAHS (AHI \>30 events/hour)
- Control Group Additional:
- Self-reported absence of snoring/sleep disorders
- No prior OSAHS diagnosis
You may not qualify if:
- All Participants:
- History of:
- Schizophrenia, epilepsy, Parkinson's, TBI, or language disorders
- Middle/inner ear diseases (otitis media, acoustic neuroma, etc.)
- Cognitive impairment or depression/anxiety disorders
- Chronic steroid use
- Systemic inflammatory diseases or malignancies
- Pregnancy or suspected pregnancy (self-reported)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Peking University First Hospital
Beijing, Beijing Municipality, China
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 6, 2025
First Posted
June 26, 2025
Study Start
December 11, 2024
Primary Completion
December 10, 2025
Study Completion
December 10, 2025
Last Updated
August 7, 2025
Record last verified: 2024-12