Journal of Japanese Society for Emergency Medicine
Online ISSN : 2187-9001
Print ISSN : 1345-0581
ISSN-L : 1345-0581
Current issue
Displaying 1-18 of 18 articles from this issue
ORIGINAL ARTICLES
RESEARCHES
  • Nene OYAMA, Minako FUJII, Mayo MAETA, Takako HIROSE, Akiko MAKAINO, Ke ...
    Article type: RESEARCH
    2025Volume 28Issue 4 Pages 669-676
    Published: August 31, 2025
    Released on J-STAGE: August 31, 2025
    JOURNAL FREE ACCESS

    Following the 2022 revision of the medical payment system, “Critical Care Mediators”, which promote dialogue between patients/families and healthcare providers to support appropriate decision-making, are spreading throughout Japan. This paper aims to report on the activities of a multidisciplinary mediator team at a general hospital in Shibuya, Tokyo. Between April 1, 2023, and March 31, 2024, interventions were conducted for 60 critically ill patients, aged 0 to 89 years, with a mean age of 55 years. Primary diagnoses included brain disease (35.0%), infectious diseases (18.3%), and heart disease (15.0%), with 63.3% resulting in death discharge. Key support included facilitating disease understanding (26.7%), supporting in treatment decision-making (50.0%), confirming willingness to donate organs (5.0%), and providing grief care to families (18.3%). Approximately 70% of cases received early intervention within 72 hours of admission. Enhancing multidisciplinary collaboration is essential for promptly responding various needs. Further research is required to validate the effectiveness of these interventions.

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  • Satoko INOUE, Makiko MIYAKE
    Article type: RESEARCH
    2025Volume 28Issue 4 Pages 677-684
    Published: August 31, 2025
    Released on J-STAGE: August 31, 2025
    JOURNAL FREE ACCESS

    We investigated the clinical characteristics of cases of acute deterioration in early exertional heat illness (EHI). We examined the medical records of 2,619 cases of trainees of police officer enrolled in the Hyogo Prefectural Police Academy who were treated for early EHI from April 2012 to September 2024, divided into an acute deterioration group (group D, 16 cases) and a recovery group (group R, 2,603 cases). Compared to group R, group D showed significantly higher frequency of altered consciousness and significantly faster pulse rate at the time of examination (130 [116-143] bpm vs. 141 [130-152] bpm, p=0.033), a tendency for serum creatinine (Cr) value to be higher, and cases with high serum Cr values were more frequent (26.0% vs. 55.6%, p=0.058). In group D, the high serum Cr value group showed a significantly faster pulse rate than the non-high serum Cr value group (125 [114-132] bpm vs. 150 [145-167] bpm, p=0.032). These results suggest that acute deterioration in EHI may be associated with altered consciousness, tachycardia, and elevated serum Cr value.

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  • Yoshio TANIZAKI, Naoko MIYAMOTO, Masakuni AMARI, Mitsunobu NAKAMURA, M ...
    Article type: RESEARCH
    2025Volume 28Issue 4 Pages 685-695
    Published: August 31, 2025
    Released on J-STAGE: August 31, 2025
    JOURNAL FREE ACCESS

    Background: The Japan Stroke Society Large Vessel Occlusion Scale (“the Scale”), comprising six observational items for assessing suspected large vessel occlusion (LVO), was recommended in a 2023 Fire and Disaster Management Agency notification.

    Objective: To examine issues associated with the response to notifications of cases with stroke transported directly to our hospital.

    Subjects: We analyzed 199 cases of the three major stroke types in 2022 for transport timelines and documentation rates of onset time. The Scale was evaluated in 241 cerebral infarction cases from 2021 to 2022.

    Results: The average transport time was the longest for fire department-transported cases (46 minutes), and the documentation rate for the last known well time was 64%. Reperfusion therapy consisted of mechanical thrombectomy in 11 cases and intravenous t-PA therapy in 35 cases. For the Scale, patients with two or more positive items showed sensitivity and specificity values comparable to those in the notification.

    Discussion: The Scale is clinically useful and necessary for revising the stroke implementation criteria of Gunma prefecture.

    Conclusion: Revising the implementation standards and continuing the Gunma PSLS 2023 program are essential to ensure the dissemination of these updates.

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  • Kana EGAWA, Atsushi KIMURA
    Article type: RESEARCH
    2025Volume 28Issue 4 Pages 696-702
    Published: August 31, 2025
    Released on J-STAGE: August 31, 2025
    JOURNAL FREE ACCESS
CASE REPORTS
  • Motoya ITO, Kureo MATSUSHITA, Takumi YAMAOKA, Morimichi SETSUDA
    Article type: CASE REPORT
    2025Volume 28Issue 4 Pages 703-707
    Published: August 31, 2025
    Released on J-STAGE: August 31, 2025
    JOURNAL FREE ACCESS
  • Tomoya NISHIMURA, Shigeto TAKESHIMA
    Article type: CASE REPORT
    2025Volume 28Issue 4 Pages 708-712
    Published: August 31, 2025
    Released on J-STAGE: August 31, 2025
    JOURNAL FREE ACCESS

    Immersion pulmonary edema is a disease that causes pulmonary edema and is associated with swimming. Here, we present a case of a patient with immersion pulmonary edema that developed during snorkeling. A man in his forties became aware of respiratory distress while snorkeling and visited our hospital. Upon arrival, his saturation of percutaneous oxygen was 88%, and a chest CT showed bilateral ground-glass opacities and mottled infiltrate shadows, with findings of pulmonary edema. He stated that he did not aspirate water; therefore, drowning was ruled out, and we diagnosed him with immersion pulmonary edema. After admission, non-invasive positive pressure ventilation was initiated, the hypoxemia quickly improved, and the patient was discharged on the third day. Three of the four patients who were diagnosed with immersion pulmonary edema in our hospital in the three-year period, from 2021 to 2023, were associated with snorkeling. Most reports of immersion pulmonary edema in Japan are associated with diving, and there remains little awareness that immersion pulmonary edema can occur regardless of diving depth. A detailed medical history is important to distinguish this condition from drowning or decompression sickness.

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  • Makoto TAKAMIZAWA, Yasuyoshi MIYAMURA, Sayaka SUZUKI, Yuki MINOWA, Yuh ...
    Article type: CASE REPORT
    2025Volume 28Issue 4 Pages 713-718
    Published: August 31, 2025
    Released on J-STAGE: August 31, 2025
    JOURNAL FREE ACCESS

    A 80s-year-old man with sarcopenia was confined to bed due to of sequelae of cervical spinal cord injury and cerebral infarction. He had been taking ethyl icosapentate (EPA) 900 mg/day for dyslipidemia for approximately 7 years, despite having poor dietary intake since undergoing cholecystectomy 3 months earlier. He was admitted to our hospital due to septic shock caused by a urinary tract infection. Compared with conputed tomography (CT) images taken approximately 3 months before admission, CT images at admission revealed newly developed fatty changes in the liver, suggestive of fatty liver. After discontinuing EPA and administering levocarnitine, CT images on day 21 showed an improvement in fatty changes in the liver. Subsequently, his dietary intake stabilized, and he was eventually discharged. Patients with sarcopenia may develop carnitine deficiency and fatty liver due to carnitine consumption through beta-oxidation of the EPA preparation, in addition to insufficient dietary carnitine intake. Although EPA preparations are considered relatively safe, evaluating the patient’s general condition and assessing the appropriateness of EPA administration and continuation is important.

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