Obstructive Sleep Apnea (OSA) Risk Factor
Obstructive Sleep Apnea (OSA)

Singh M. Proportion of surgical patients with undiagnosed obstructive sleep apnoea. British journal of anaesthesia : BJA. 2013-04;110:629-636.


OSA: Pathophysiology

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OSA Complications:

Mokhlesi B. Sleep-disordered breathing and postoperative outcomes after elective surgery: analysis of the nationwide inpatient sample. Chest. 2013-09;144:903-914.


Other Complications:

Flink BJ. Obstructive sleep apnea and incidence of postoperative delirium after elective knee replacement in the nondemented elderly. Anesthesiology 2012-04;116:788-796.


OSA and the Elderly

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Lockhart E, Obstructive sleep apnea screening and postoperative mortality in a large surgical cohort , Sleep Medicine, 2013, 407-415


OSA: Preoperative Evaluation

ASA Task Force. Updated Practice Guidelines for the Perioperative Management of Patients with Obstructive Sleep Apnea. Anesthesiology 2014; 120:268-86


OSA: Medical Records

OSA: Patient/Family Interview

STOP BANG Questionnaire

High risk of OSA: ≥3 Yes answers
Low risk of OSA: <3 Yes answers

Adapted from: Chung F, Yegneswaran B, Liao P, et al. STOP questionnaire: a tool to screen patients for obstructive sleep apnea. Anesthesiology. 2008;108:812–21.


OSA: Physical Examination

OSA: Preoperative Preparation

OSA: Day of Surgery


OSA: Intraoperative Management