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Updated: Feb 10, 2026

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea

Published on: December 6, 2016

Ambulatory positional obstructive sleep apnea syndrome

Fernando Di-Tullio¹, Glenda Ernst¹, Gabriela Robaina¹

¹Hospital Británico, Respiratory Medicine - Ciudad Autónoma de Buenos Aires - Buenos Aires - Argentina.

Sleep Science (Sao Paulo, Brazil)

|May 26, 2018

Abstract

Objective:

To establish the prevalence of positional (PP) OSA patients using self-administered home-based respiratory polygraphy (RP).

Materials And Methods:

52 month retrospective study based on RP records.

Results:

200 PR records: 70.5% men 29.5% women. 76% were diagnosed with OSA and 54.6% with PP OSA. There were no significant differences in Epworth Sleepiness Scale, apnea hypopnea index and oxygen desaturation index. PP OSA patients were younger, had a lower BMI (30.3±0.9 vs. 35.3±1.2) (p<0.0001), and the time they spent with oxygen saturation <90% (T<90) was lower (8.8 vs. 28.7±6.7, p=0.0038). The PP OSA group spent 43% of total recording time in the supine position.

Conclusions:

The prevalence of PP OSA patients studied with RP is similar to the one described by sleep laboratories. They have lower BMI, present mostly mild OSA with less desaturation, and are less likely to receive CPAP therapy.

Keywords:

Continuous Positive Airway Pressure Sleep Apnea Syndromes Sleep Apnea, Obstructive Supine Position

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