• Sophia Antoniadis, Stefanie Passauer-Baierl, Heiko Baschnegger, and Matthias Weigl.
• Institute and Outpatient Clinic for Occupational, Social, and Environmental Medicine, University Hospital, Ludwig-Maximilians-University, Munich, Germany; Department of Obstetrics and Gynecology, University Hospital Munich, Großhadern, Germany.
• J. Surg. Res. 2014 May 1; 188 (1): 21-9.

BackgroundIntraoperative interruptions potentially interfere with surgical flow, contribute to patient safety risks, and increase stress. This study aimed to observe interruption events in operating rooms (ORs) and to measure surgical team's intraoperative interference from interruptions during surgery.Materials And MethodsSixty-five surgical cases were observed at two surgical clinics in Germany (mainly abdominal and orthopedic surgery). An established observational tool was successfully adapted to German ORs. Various disruptions to surgical work were captured with a predefined coding scheme. In addition, the severity of each observed interruption was rated on behaviorally anchored scale to define the level of OR team involvement. Pilot test supported tools' reliability.ResultsMean intraoperative duration was 1 h, 23 min (standard deviation = 50:55 min). Overall N = 803 intraoperative interruptions and disruption events were observed. Most frequent were people entering or exiting the OR and telephone or beeper calls. On average, OR teams were distracted or interrupted 9.82 times per hour (standard deviation = 3.97). Equipment failures and OR-environment-related disruptions were rated as the highest interference of OR team functioning. The involved OR professions were differently affected by interruption events. Distribution of intraoperative interruptions within the procedure varied significantly; during early stages of the case, significantly more interruptions were observed.ConclusionsThe study demonstrates the high level of interference in ORs. Furthermore, it provides a useful measure for intraoperative workflow disruptions and their interference of OR team functioning. OR environments need to be well designed to reduce unnecessary interruptions and distractions, so that surgical teams can manage their surgical tasks efficiently and safely.Copyright © 2014 Elsevier Inc. All rights reserved.

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