- Changes in the characteristics of acute carbon monoxide poisoning patients who visited the emergency department during the COVID-19 pandemic
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Jun bo Sim, Tae kyu Ahn, Hyun Kim
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J Korean Soc Clin Toxicol. 2023;21(2):108-116. Published online December 29, 2023
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DOI: https://doi.org/10.22537/jksct.2023.00008
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 Abstract
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- Purpose: This study investigated the differences between patients with acute carbon monoxide (CO) poisoning who visited the emergency department (ED) before and during the coronavirus disease 2019 (COVID-19) pandemic.
Methods
This was a single-center retrospective observational study. Patients with CO poisoning who visited the ED during the period from February 2020 to January 2023 were classified as the COVID-19 pandemic group, and those from February 2019 to January 2020 were classified as the non-pandemic group. Patients’ medical records were reviewed, their demographic and clinical characteristics were compared, and the length of stay in ED was checked. The time from admission to the ED to the start of hyperbaric oxygenation (HBO) was defined as the door-to-HBO time, and this parameter was compared between both groups.
Results
In total, 672 patients were included in this study. The proportion of intentional poisoning was significantly higher in the COVID-19 pandemic group than in the non-pandemic group (p=0.028). The proportion of intentional poisoning significantly increased in the 20- to 29-year-old age group during the COVID-19 pandemic (p<0.001). In addition, it took longer to initiate HBO in the COVID-19 pandemic group than in the non-pandemic group (p=0.001).
Conclusion
These findings suggest that pandemics of infectious diseases, such as COVID-19, increase the proportion of intentional CO poisoning, and it may take longer to initiate HBO after visiting the ED. Efforts will be needed to decrease intentional CO poisoning and length of stay in ED.
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KSCT
Korean Society of Clinical Toxicology