Obstructive Sleep Apnea Airway Evaluation

Obstructive Sleep Apnea Clinical Trial

Official title: Developing a Novel Clinical Tool to Evaluate Obstructive Sleep Apnea (OSA) With Airway Ultrasound

Status Active, not recruiting

Clinical Trial Summary

Current practice guidelines recommend obstructive sleep apnea (OSA) patients to stay in the post anesthetic care unit (PACU) until the risk of respiratory depression has subsided. Inevitably, a greater demand on hospital resource utilization in these patients will increase health care cost. Polysomnography (PSG) and screening questionnaires can identify OSA but they are limited by accessibility and false positive results, respectively. Inaccurate OSA identification misguides postoperative surveillance plan. In contrast with MRI and CT scans, ultrasound is more accessible and more likely a practical tool for OSA screening. However, before clinical application, airway ultrasound (US) exam must undergo vigorous testing to check its utility, accuracy, inter-observer reliability and its ability to identify OSA and its severity.

Clinical Trial Description

The investigators plan to recruit surgical patients at risk of OSA, exposed to sedatives,and/or general anesthesia. Surface ultrasound measurements will be conducted in a separate setting, and be correlated with the sleep study results, and a set of ultrasound parameters will be validated in this setting. Relevant clinical outcomes will be captured as well. ;

Related Conditions & MeSH terms

• Apnea
• Obstructive Sleep Apnea
• Sleep Apnea Syndromes
• Sleep Apnea, Obstructive

• NCT number: NCT03361553
• Study type: Observational
• Source: University Health Network, Toronto
• Status: Active, not recruiting
• Start date: July 20, 2017
• Completion date: May 22, 2023