STOP-BANG Questionnaire for evaluation of hypoxemia risk in subjects undergoing deep sedation for screening gastrointestinal endoscopy

MA Li; LI Juan; LIU Xiaomei

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Medical Journal of the Chinese People Armed Police Forces ›› 2019, Vol. 30 ›› Issue (6) : 472-475.

STOP-BANG Questionnaire for evaluation of hypoxemia risk in subjects undergoing deep sedation for screening gastrointestinal endoscopy

MA Li¹, LI Juan², LIU Xiaomei¹

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Abstract

Objective To estimate the prevalence of obstructive sleep apnea (OSA) among Chinese subjects undergoing deep sedation for screening gastrointestinal endoscopy and to assess the hypoxemia risk of these examinees stratified by the STOP-BANG Questionnaire.Methods A prospective cohort study was conducted among recipients of deep sedation with monitored anesthesia care for combined esophagogastroduodenoscopy plus colonoscopy. These subjects were stratified into high- and low-risk groups for OSA using the STOP-BANG Questionnaire. Deep sedation was achieved via a propofol target-controlled infusion system. The frequency of hypoxemia was compared between high-risk and low-risk groups for OSA.Results A total of 620 Chinese subjects were enrolled during the study, and 614 of them were included for analysis. 220 (35.8%) were classified as high risk for OSA, and 394 (64.1%) as low risk for OSA by the STOP-BANG Questionnaire. Hypoxemia occurred in 85 (13.8%) of these subjects during endoscopy. The high-risk group was at significantly higher risk for hypoxemia than the low-risk group (24.8% vs 7.3%; relative risk, 3.37; 95% CI, 2.22-5.13).Conclusions About 35.5% of Chinese subjects undergoing deep sedation for screening endoscopy are at high risk of OSA. Subjects at high risk of OSA are associated with increased risk of hypoxemia compared with the low-risk group.

Key words

endoscopy / deep sedation / hypoxemia / obstructive sleep apnea / monitored anesthesia care / STOP-BANG Questionnaire

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MA Li, LI Juan, LIU Xiaomei. STOP-BANG Questionnaire for evaluation of hypoxemia risk in subjects undergoing deep sedation for screening gastrointestinal endoscopy[J]. Medical Journal of the Chinese People Armed Police Forces. 2019, 30(6): 472-475

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