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Am J Disaster Med . Characteristics of the patients consulted with emergency medicine physicians at a large-scale COVID-19 vaccination center: Prospective observational study

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  • Am J Disaster Med . Characteristics of the patients consulted with emergency medicine physicians at a large-scale COVID-19 vaccination center: Prospective observational study

    Am J Disaster Med


    . 2023;18(1):17-30.
    doi: 10.5055/ajdm.0456. Characteristics of the patients consulted with emergency medicine physicians at a large-scale COVID-19 vaccination center: Prospective observational study

    Soichiro Seno 1 , Takashi Nagata 2 , Kazuo Imai 3 , Takeshi Abe 4 , Shintaro Yamada 2 , Hitomi Tsunashima 2 , Seigo Yamada 5 , Akihito Hagihara 6 , Daizoh Saitoh 5 , Takashi Nishiyama 2



    AffiliationsAbstract

    Objective: We aimed to clarify the characteristics of patients consulted by the medical staff with emergency medicine (EM) physicians after vaccination and EM physicians transferred to an outside hospital.
    Design: The Japanese Self-Defense Force established a large-scale coronavirus disease 2019 (COVID-19) vaccination center. Overall, 1,306,928 citizens received the Moderna vaccine, which targeted the first and second vaccinations between May 24, 2021 and November 30, 2021. EM physicians were always available in the emergency room (ER). The medical staff could consult the patients with EM physicians; however, the criteria were ambiguous. We conducted signal detection analysis on the patients who experienced adverse events to detect characteristics.
    Results: Of the 3,312 patients experienced adverse events after vaccination, the medical staff consulted 344 with EM physicians. The patients whose respiratory rate and systolic blood pressure (BP) were more than 18 per minute and 162 mmHg, respectively, were considerably consulted. In addition, the patients whose systolic BP was more than 186.5 mmHg were transferred to an outside hospital. No patients were seriously ill or died after being transferred to an outside hospital.
    Conclusions: The medical staff consulted the patients with a high respiratory rate or BP with EM physicians. In addition to BP, the respiratory rate would also be necessary as a finding that suggests a patient's severity after vaccination. Therefore, it appears safer that EM physicians are always available to ensure the recipients' safety when running a new large-scale vaccination center against unknown diseases, such as COVID-19.


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