JOURNAL ARTICLE
OBSERVATIONAL STUDY
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The STOP-BANG questionnaire and the risk of perioperative respiratory complications in urgent surgery patients: A prospective, observational study.

INTRODUCTION: The STOP-BANG (SB) questionnaire, a tool originally proposed for identifying patients at risk of obstructive sleep apnoea, may also identify patients at increased risk of perioperative complications (when>3). Perioperative complications, including respiratory ones, are more frequent in emergency surgery. This study aimed at evaluating whether the SB is predictive of perioperative respiratory complications in urgent surgery.

METHODS: Consecutive adult patients admitted for an urgent surgery under general anaesthesia were included. The STOP-BANG questionnaire was completed before anaesthesia. Perioperative respiratory complications were prospectively recorded during surgery and in the postoperative care unit (PACU).

RESULTS: One hundred and eighty-nine patients were included (women 46%, median age 60 [43-78] years old) of which 104 (55%) were SB+. Diabetes mellitus and arrhythmia were more frequent in the SB+ patients than in SB-. The ASA class was higher in SB+ patients compared with SB-, but type and duration of surgery were statistically similar. The incidence of respiratory complications was higher in SB+ patients both during surgery (21% versus 6%, P<0.002) and in the PACU (57% versus 34%, P=0.0015). Furthermore, SB+ patients had a prolonged length of hospital stay (6 [3-12] versus 4 [2-7] days, P=0.0002). In a multivariate analysis, the STOP-BANG score was independently associated with respiratory complications (OR [CI 95%]=1.44 [1.03-2.03], P=0.03).

CONCLUSIONS: An elevated STOP-BANG score (≥ 3) is associated with an increased risk of perioperative respiratory complications and with prolonged length of stay in urgent surgery patients.

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