Analysis of the cardiac frequency and oxygenation during sleep in patients with the Obstructive Sleep Apnea Syndrome

Not Applicable

Recruiting

• Conditions: Obstructive Sleep Apnea; C08.618.085.852.850

• Registration Number: RBR-3jdm6d
• Lead Sponsor: niversidade Federal de São Carlos

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2012-04-24
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: recruiting
• Sex: Not specified
• Target Recruitment: Not specified

Inclusion Criteria

Individuals of both sexes;
Aged 18-80 years;
With suspicion diagnosis of obstructive sleep apnea;
Who underwent full polysomnography in sleep Institute of San Carlos;
Technical data could be analyzed;

Exclusion Criteria

Patients who underwent polysomnography, but whose data are not technically acceptable.

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Presence of subclasses of individuals according to clinical parameters and in different stages of sleep. Measurements: Analysis of oxygen saturation variability and heart rate variability, combined with the other existing methods for analysis of the severity of obstructive sleep apnea, such as the index apnea / hypopnea per hour of sleep, the time of the saturation oxygen spent below 90% and the oxygen desaturation index per hour of sleep.

Secondary Outcome Measures

Name	Time	Method
Increase in the correlation of the variability of oxygen saturation with the heart rate variability in different degrees of severity of obstructive sleep apnea and were considered mild apnea subjects with apnea / hypopnea index between 5 and 15 events per hour of sleep apnea moderate 16 to 30 events and severe apnea more than 30 events per hour of sleep.