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Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
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Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
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Can STOP-Bang and Pulse Oximetry Detect and Exclude Obstructive Sleep Apnea?

Eva Christensson1,2, Karl A Franklin3, Carin Sahlin4

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|June 30, 2018
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Summary
This summary is machine-generated.

Simple screening tools like the STOP-Bang questionnaire and oxygen desaturation index can effectively identify patients with obstructive sleep apnea (OSA). A STOP-Bang score of less than 2 nearly excludes moderate to severe OSA, while a score of 6 or higher indicates a high likelihood of OSA.

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Area of Science:

  • Sleep Medicine
  • Pulmonology
  • Medical Diagnostics

Background:

  • Obstructive sleep apnea (OSA) is a prevalent disorder linked to postoperative complications.
  • A significant number of OSA cases remain undiagnosed, highlighting the need for accessible screening methods.

Purpose of the Study:

  • To evaluate the efficacy of the STOP-Bang questionnaire and oxygen desaturation index in identifying individuals with OSA.
  • To determine optimal screening thresholds for these tools in a clinical setting.

Main Methods:

  • A prospective, observational multicenter trial involving 449 adult patients referred for OSA evaluation.
  • Ambulatory polygraphy, including pulse oximetry, and the STOP-Bang questionnaire were administered.
  • The STOP-Bang score assesses eight risk factors: Snoring, Tiredness, Observed apnea, high blood Pressure, BMI >35, Age >50, Neck circumference >40 cm, and Gender.

Main Results:

  • An optimal STOP-Bang cutoff score of 6 demonstrated 63% sensitivity and 69% specificity for moderate to severe OSA (Apnea-Hypopnea Index [AHI] ≥15).
  • A STOP-Bang score <2 had a 95% probability of excluding an AHI >15.
  • A strong positive correlation was observed between AHI and both STOP-Bang score (ρ=0.50) and oxygen desaturation index (ρ=0.96).

Conclusions:

  • The STOP-Bang questionnaire and pulse oximetry are valuable tools for screening obstructive sleep apnea.
  • A STOP-Bang score <2 effectively rules out moderate to severe OSA, while a score ≥6 strongly suggests its presence.
  • Integrating nightly pulse oximetry for patients with STOP-Bang scores of 2-5 is recommended for enhanced pre-surgical screening.