• Gerrit Jansen, Rainer Borgstedt, Linda Irmscher, Jakob Popp, Benjamin Schmidt, Eric Lang, and Sebastian W Rehberg.
• From the Department of Anesthesiology, Intensive Care, Emergency Medicine, Transfusion Medicine, and Pain Therapy, Protestant Hospital of the Bethel Foundation, University Hospital OWL, University of Bielefeld, Bielefeld, Germany.
• Anesth. Analg. 2021 Sep 1; 133 (3): 747-754.

BackgroundRecently, a very low incidence of 3 per 10,000 and a mortality of 30% were reported for pediatric perioperative cardiac arrest (POCA). However, high-risk patients, namely children already anesthetized on the intensive care unit (ICU), were excluded. This study investigates the incidence and mortality of POCA in children in whom anesthesia was induced in the ICU or in the operating room using real-world data. In addition, different classifications of POCA were compared with respect to outcome relevance.MethodsThis is a retrospective observational study conducted at a German level 1 perinatal center and tertiary care hospital between 2008 and 2018. Children ≤15 years who underwent an anesthetic procedure and suffered from POCA (defined as any condition requiring chest compressions and/or defibrillation) from the beginning of care provided by an anesthesiologist to 60 minutes after anesthesia or sedation were included. Primary end points were incidence and mortality of POCA in children with anesthesia induced in the ICU versus in the operating room. Secondary end points included incidences and outcomes with respect to the pathophysiological cause (respiratory versus circulatory associated).ResultsThere were 18 POCA during 22,650 anesthetic procedures (incidence 7.9 per 10,000; 95% confidence interval [CI], 4.7-12.5). Thirty-day mortality was 3.5 per 10,000 (95% CI, 1.5-6.9). Incidence and mortality were higher in children in whom anesthesia was induced in the ICU versus in the operating room (incidence: 131.6; 95% CI, 57 to 257.6 versus 4.5; 95% CI, 2.2-8.3; P < .001; and mortality: 82.2; 95% CI, 26.7-190.8 versus 1.4; 95% CI, 0.3-3.9; P < .001). Mortality in circulatory-induced POCA (n = 8; 44%) was 100%, in respiratory-induced POCA (n = 9; 50%) 0% (P < .001).ConclusionsChildren with anesthesia induction in the ICU represent a high-risk population for POCA and POCA-associated mortality. POCA classification should be based on the individual cause (respiratory versus circulatory) rather than on the perioperative phase or the responsible specialty.Copyright © 2021 International Anesthesia Research Society.

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