Polysomnography and Heart Rate Indexes in Obstructive Sleep Apnea
- Conditions
- Obstructive Sleep Apnea
- Registration Number
- NCT02044900
- Lead Sponsor
- Ovidiu Constantin Baltatu
- Brief Summary
The purpose of this study is to evaluate the diagnostic accuracy of polysomnography indexes for diagnosis of sleep apnea in human subjects obstructive sleep apnea (OSA). This includes evaluation of polysomnography indexes (AHI; AI, arousal index; ODI, oxygen desaturation index) and heart rate variability (HRV) indexes.
- Detailed Description
This is a cross-sectional study collecting data from patients from the Sleep Institute of Itaperuna, Rio de Janeiro, Brazil. Polysomnography (PSG) monitoring and diagnosis was in accordance with American Society of Sleep Medicine (ASSM) standards. Standard baseline polysomnography is performed using a computerised system. The following extracted signals are measured: 2 electroencephalogram channels (O1-A2, O2-A1, C3-A2, C4-A1), 2 electrooculogram channels, electromyography (EMG, bilateral anterior tibialis), pulse oximetry (arterial oxygen saturation), nasal-oral airflow (thermistors), and electrocardiogram (ECG derivation DII). The polysomnograms are scored according to the criteria of Rechtschaffen and Kales.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Male
- Target Recruitment
- 50
- Diagnosis of obstructive sleep apnea with an apnea-hypopnea index (AHI) > 5.
- Subjects with a history or clinical examination suggestive of neuromuscular disease, hypertension or any surgical treatment were not considered in the study.
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Polysomnography indexes one night Polysomnography indexes and full-length sleep ECG recordings are extracted from polysomnogram measurements.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Sleep Institute of Itaperuna
🇧🇷Itaperuna, Rio de Janeiro, Brazil