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Can STOP-Bang and Pulse Oximetry Detect and Exclude Obstructive Sleep Apnea?
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
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2018 (English)In: Anesthesia and Analgesia, ISSN 0003-2999, E-ISSN 1526-7598, Vol. 127, no 3, p. 736-743Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Obstructive sleep apnea (OSA) is related to postoperative complications and is a common disorder. Most patients with sleep apnea are, however, undiagnosed, and there is a need for simple screening tools. We aimed to investigate whether STOP-Bang and oxygen desaturation index can identify subjects with OSA.

METHODS: In this prospective, observational multicenter trial, 449 adult patients referred to a sleep clinic for evaluation of OSA were investigated with ambulatory polygraphy, including pulse oximetry and the STOP-Bang questionnaire in 4 Swedish centers. The STOP-Bang score is the sum of 8 positive answers to Snoring, Tiredness, Observed apnea, high blood Pressure, Body mass index >35 kg/m2, Age >50 years, Neck circumference >40 cm, and male Gender.

RESULTS: The optimal STOP-Bang cutoff score was 6 for moderate and severe sleep apnea, defined as apnea-hypopnea index (AHI) ≥15, and the sensitivity and specificity for this score were 63% (95% CI, 0.55–0.70) and 69% (95% CI, 0.64–0.75), respectively. A STOP-Bang score of <2 had a probability of 95% (95% CI, 0.92–0.98) to exclude an AHI >15 and a STOP-Bang score of ≥6 had a specificity of 91% (95% CI, 0.87–0.94) for an AHI >15. The items contributing most to the STOP-Bang were the Bang items. There was a positive correlation between AHI versus STOP-Bang and between AHI versus oxygen desaturation index, Spearman ρ 0.50 (95% CI, 0.43–0.58) and 0.96 (95% CI, 0.94–0.97), respectively.

CONCLUSIONS: STOP-Bang and pulse oximetry can be used to screen for sleep apnea. A STOP-Bang score of <2 almost excludes moderate and severe OSA, whereas nearly all the patients with a STOP-Bang score ≥6 have OSA. We suggest the addition of nightly pulse oximetry in patients with a STOP-Bang score of 2–5 when there is a need for screening for sleep apnea (ie, before surgery).

Place, publisher, year, edition, pages
Lippincott Williams & Wilkins, 2018. Vol. 127, no 3, p. 736-743
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Anesthesiology and Intensive Care
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URN: urn:nbn:se:umu:diva-155038DOI: 10.1213/ANE.0000000000003607ISI: 000452079300035PubMedID: 29958223OAI: oai:DiVA.org:umu-155038DiVA, id: diva2:1275788
Available from: 2019-01-07 Created: 2019-01-07 Last updated: 2019-01-25Bibliographically approved

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