• Jung-Bin Park, Jin Young Sohn, Pyoyoon Kang, Sang-Hwan Ji, Eun-Hee Kim, Ji-Hyun Lee, Jin-Tae Kim, Hee-Soo Kim, and Young-Eun Jang.
• Department of Anesthesiology and Pain Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.
• J. Korean Med. Sci. 2023 Dec 4; 38 (47): e349e349.

BackgroundThe perianesthetic morbidity, mortality risk and anesthesia-associated risk after preoperative coronavirus disease 2019 (COVID-19) omicron variant in pediatric patients have not been fully demonstrated. We examined the association between preoperative COVID-19 omicron diagnosis and the incidence of overall perioperative adverse events in pediatric patients who received general anesthesia.MethodsThis retrospective study included patients aged < 18 years who received general anesthesia between February 1 and June 10, 2022, in a single tertiary pediatric hospital. They were divided into two groups; patients in a COVID-19 group were matched to patients in a non-COVID-19 group during the omicron-predominant period in Korea. Data on patient characteristics, anesthesia records, post-anesthesia records, COVID-19-related history, symptoms, and mortality were collected. The primary outcomes were the overall perioperative adverse events, including perioperative respiratory adverse events (PRAEs), escalation of care, and mortality.ResultsIn total, 992 patients were included in the data analysis (n = 496, COVID-19; n = 496, non-COVID-19) after matching. The overall incidence of perioperative adverse events was significantly higher in the COVID-19 group than in the non-COVID-19 group (odds ratio [OR], 1.92; 95% confidence interval [CI], 1.89-1.94). The difference was significant for PRAEs (OR, 2.00; 95% CI, 1.96-2.02) but not in escalation of care or mortality. The most pronounced difference between the two groups was observed in instances of high peak inspiratory pressure ≥ 25 cmH2O during the intraoperative period (OR, 11.0; 95% CI, 10.5-11.4). Compared with the non-COVID-19 group, the risk of overall perioperative adverse events was higher in the COVID-19 group diagnosed 0-2 weeks before anesthesia (OR, 6.5; 95% CI, 2.1-20.4) or symptomatic on the anesthesia day (OR, 6.4; 95% CI, 3.30-12.4).ConclusionPediatric patients with the preoperative COVID-19 omicron variant had increased risk of PRAEs. Patients within 2 weeks after COVID-19 or those with symptoms had a higher risk of PRAEs.© 2023 The Korean Academy of Medical Sciences.

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