• Melanie Meersch, Raphael Weiss, Mira Küllmar, Lars Bergmann, Astrid Thompson, Leonore Griep, Desiree Kusmierz, Annika Buchholz, Alexander Wolf, Hartmuth Nowak, Tim Rahmel, Michael Adamzik, Jan Gerrit Haaker, Carina Goettker, Matthias Gruendel, Andre Hemping-Bovenkerk, Ulrich Goebel, Julius Braumann, Irawan Wisudanto, Manuel Wenk, Darius Flores-Bergmann, Andreas Böhmer, Sebastian Cleophas, Andreas Hohn, Anne Houben, Richard K Ellerkmann, Jan Larmann, Julia Sander, Markus A Weigand, Nicolas Eick, Sebastian Ziemann, Eike Bormann, Joachim Gerß, Daniel I Sessler, Carola Wempe, Christina Massoth, and Alexander Zarbock.
• Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Münster, Münster, Germany.
• JAMA. 2022 Jun 28; 327 (24): 240324122403-2412.

ImportanceIntraoperative handovers of anesthesia care are common. Handovers might improve care by reducing physician fatigue, but there is also an inherent risk of losing critical information. Large observational analyses report associations between handover of anesthesia care and adverse events, including higher mortality.ObjectiveTo determine the effect of handovers of anesthesia care on postoperative morbidity and mortality.Design, Setting, And ParticipantsThis was a parallel-group, randomized clinical trial conducted in 12 German centers with patients enrolled between June 2019 and June 2021 (final follow-up, July 31, 2021). Eligible participants had an American Society of Anesthesiologists physical status 3 or 4 and were scheduled for major inpatient surgery expected to last at least 2 hours.InterventionsA total of 1817 participants were randomized to receive either a complete handover to receive anesthesia care by another clinician (n = 908) or no handover of anesthesia care (n = 909). None of the participating institutions used a standardized handover protocol.Main Outcomes And MeasuresThe primary outcome was a 30-day composite of all-cause mortality, hospital readmission, or serious postoperative complications. There were 19 secondary outcomes, including the components of the primary composite, along with intensive care unit and hospital lengths of stay.ResultsAmong 1817 randomized patients, 1772 (98%; mean age, 66 [SD, 12] years; 997 men [56%]; and 1717 [97%] with an American Society of Anesthesiologists physical status of 3) completed the trial. The median total duration of anesthesia was 267 minutes (IQR, 206-351 minutes), and the median time from start of anesthesia to first handover was 144 minutes in the handover group (IQR, 105-213 minutes). The composite primary outcome occurred in 268 of 891 patients (30%) in the handover group and in 284 of 881 (33%) in the no handover group (absolute risk difference [RD], -2.5%; 95% CI, -6.8% to 1.9%; odds ratio [OR], 0.89; 95% CI, 0.72 to 1.10; P = .27). Nineteen of 889 patients (2.1%) in the handover group and 30 of 873 (3.4%) in the no handover group experienced all-cause 30-day mortality (absolute RD, -1.3%; 95% CI, -2.8% to 0.2%; OR, 0.61; 95% CI, 0.34 to 1.10; P = .11); 115 of 888 (13%) vs 136 of 872 (16%) were readmitted to the hospital (absolute RD, -2.7%; 95% CI, -5.9% to 0.6%; OR, 0.80; 95% CI, 0.61 to 1.05; P = .12); and 195 of 890 (22%) vs 189 of 874 (22%) experienced serious postoperative complications (absolute RD, 0.3%; 95% CI, -3.6% to 4.1%; odds ratio, 1.02; 95% CI, 0.81 to 1.28; P = .91). None of the 19 prespecified secondary end points differed significantly.Conclusions And RelevanceAmong adults undergoing extended surgical procedures, there was no significant difference between the patients randomized to receive handover of anesthesia care from one clinician to another, compared with the no handover group, in the composite primary outcome of mortality, readmission, or serious postoperative complications within 30 days.Trial RegistrationClinicalTrials.gov Identifier: NCT04016454.

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