Obstructive Sleep Apnea
Conditions
Keywords
Automated Scoring, Polysomnography
Brief summary
This prospective study aims to compare automated polysomnographic scoring with manual scoring in adult patients with Obstructive Sleep Apnea (OSA). The main objective is to evaluate the accuracy, reliability, and time efficiency of automated scoring algorithms compared to standard manual scoring performed by expert sleep specialists
Detailed description
Study Procedures 1. Pre-PSG Assessment: Demographic data, anthropometric measurements (weight, height, Body mass index (BMI), neck circumference), vital signs, comorbidities, and the STOP-BANG questionnaire are recorded. 2. Overnight PSG: Conducted in a sound-attenuated, temperaturecontrolled, well-prepared sleep lab using either SOMNOscreen plus (SOMNOmedics GmbH) or Alice® 6 Sleepware (Philips Respironics, PA, USA). Both systems acquire this channels montage: • EEG (six channels: F3, F4, C3, C4, O1, O2 referenced to ipsilateral mastoids) • EOG (two channels: left and right outer canthus) • Chin EMG (three channels) and anterior tibialis EMG (two channels, bilateral) • Airflow (oronasal thermistor + nasal pressure transducer cannula) • ECG (2 leads) • Body position sensor • Snoring microphone Respiratory inductive plethysmography (RIP) belts for thoracic and abdominal effort (two channels) • Pulse oximetry (SpO₂, one channel) via finger probe
Interventions
Comparison between automated scoring software and standard manual scoring by expert specialists for sleep study records.
Sponsors
Study design
Eligibility
Inclusion criteria
* Age \> 18 years. • Clinical suspicion of OSA based on history, physical examination, and a positive screening questionnaire (e.g., STOP-BANG ≥ 3). Ability to provide written informed consent.
Exclusion criteria
* Age ≤ 18 years. • Inability to give informed consent (e.g., severe cognitive impairment, language barrier). • Contraindications to PSG (e.g., severe skin conditions preventing electrode placement). Current use of therapies that could alter sleep architecture (e.g., highdose benzodiazepines, opioids) unless a wash-out period is observed.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Apnea-Hypopnea Index (AHI) Agreement | At the time of sleep study completion (1 night) | Comparison of the Apnea-Hypopnea Index (AHI) values obtained from automated polysomnographic scoring against those obtained from manual scoring. |
Countries
Egypt
Contacts
Ain Shams University