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Updated: May 24, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
High STOP-Bang score indicates a high probability of obstructive sleep apnoea
F Chung1, R Subramanyam, P Liao
1Department of Anaesthesia, Toronto Western Hospital, University Health Network, University of Toronto, 399 Bathurst Street, Toronto, ON, Canada M5T 2S8. frances.chung@uhn.ca
The STOP-Bang questionnaire effectively screens surgical patients for obstructive sleep apnea (OSA). Higher scores (5-8) significantly increase the probability of moderate to severe OSA, aiding in perioperative risk assessment.
Area of Science:
- Anesthesiology
- Sleep Medicine
- Surgical Pre-assessment
Background:
- Obstructive sleep apnea (OSA) is a common condition, particularly in surgical patients.
- The STOP-Bang questionnaire is a validated tool for OSA screening.
- Accurate OSA screening is crucial for perioperative management and patient safety.
Purpose of the Study:
- To evaluate the association between STOP-Bang questionnaire scores and the probability of moderate to severe obstructive sleep apnea (OSA).
- To determine the utility of the STOP-Bang score in identifying surgical patients at high risk for OSA.
Main Methods:
- A prospective study involving 746 surgical patients undergoing pre-operative assessment.
- Patients completed the STOP-Bang questionnaire and underwent polysomnography (PSG).
- Data on BMI, age, neck circumference, and gender were collected and analyzed.
Main Results:
- Obstructive sleep apnea (OSA) was diagnosed in 68.4% of the study population.
- Increasing STOP-Bang scores correlated with a higher odds ratio for moderate/severe and severe OSA.
- A STOP-Bang score of 5-8 indicated a significantly increased probability of moderate/severe OSA.
Conclusions:
- The STOP-Bang questionnaire is a valuable tool for stratifying surgical patients by OSA risk.
- Scores of 5-8 suggest a high probability of moderate/severe OSA, warranting further investigation or precautions.
- Utilizing the STOP-Bang score can improve perioperative care and patient outcomes by identifying undiagnosed OSA.
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