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{
    "pk": 50496,
    "title": "Unexpected Cardiac Asystole Caused by Vasovagal Reaction During Venipuncture: A Case Report",
    "subtitle": null,
    "abstract": "<p><strong>Introduction</strong>: The vasovagal reaction can lead to benign, self-limiting syncope triggered by stimuli such as pain or emotional stress. However, in rare and severe cases it may result in cardiac asystole. Previous episodes of vasovagal reactions could be a risk factor for cardiac asystole.</p>\n<p><strong>Case Report: </strong>We present a 39-year-old male with a previous episode of vasovagal syncope who developed an unexpected 15-second episode of asystole during venipuncture, for which we performed immediate chest compressions. Further evaluations revealed no apparent underlying cause. The patient was subsequently diagnosed with transient asystole secondary to vasovagal reaction.</p>\n<p><strong>Conclusion</strong>: While venipuncture is a common procedure in clinical practice, clinicians should be aware of the potential risk for cardiac asystole. Detailed medical history of previous episodes of vasovagal reactions could be helpful.</p>",
    "language": "eng",
    "license": {
        "name": "Creative Commons Attribution 4.0",
        "short_name": "CC BY 4.0",
        "text": "Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.\r\n\r\nNo additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.",
        "url": "https://creativecommons.org/licenses/by/4.0"
    },
    "keywords": [
        {
            "word": "vasovagal reaction"
        },
        {
            "word": "syncope"
        },
        {
            "word": "cardiac asystole"
        },
        {
            "word": "venipuncture"
        }
    ],
    "section": "Case Reports",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/3t05q7rj",
    "frozenauthors": [
        {
            "first_name": "Tomoki",
            "middle_name": "",
            "last_name": "Nagano",
            "name_suffix": "",
            "institution": "Japanese National Physician Graduate Medical Education Program, United States Naval Hospital, Yokosuka, Japan",
            "department": ""
        },
        {
            "first_name": "Ryo",
            "middle_name": "",
            "last_name": "Sakuma",
            "name_suffix": "",
            "institution": "Japanese National Physician Graduate Medical Education Program, United States Naval Hospital, Yokosuka, Japan",
            "department": ""
        },
        {
            "first_name": "Wataru",
            "middle_name": "",
            "last_name": "Horiguchi",
            "name_suffix": "",
            "institution": "Japanese National Physician Graduate Medical Education Program, United States Naval Hospital, Yokosuka, Japan",
            "department": ""
        },
        {
            "first_name": "Soi",
            "middle_name": "",
            "last_name": "Jeong",
            "name_suffix": "",
            "institution": "Japanese National Physician Graduate Medical Education Program, United States Naval Hospital, Yokosuka, Japan",
            "department": ""
        },
        {
            "first_name": "Takaki",
            "middle_name": "",
            "last_name": "Tanamoto",
            "name_suffix": "",
            "institution": "Japanese National Physician Graduate Medical Education Program, United States Naval Hospital, Yokosuka, Japan",
            "department": ""
        },
        {
            "first_name": "Yumi",
            "middle_name": "",
            "last_name": "Yokota",
            "name_suffix": "",
            "institution": "Japanese National Physician Graduate Medical Education Program, United States Naval Hospital, Yokosuka, Japan",
            "department": ""
        },
        {
            "first_name": "Matthew",
            "middle_name": "",
            "last_name": "Fowler",
            "name_suffix": "",
            "institution": "United States Naval Hospital, Department of Internal Medicine, Yokosuka, Japan",
            "department": ""
        },
        {
            "first_name": "Jin",
            "middle_name": "",
            "last_name": "Kim",
            "name_suffix": "",
            "institution": "United States Naval Hospital, Department of Emergency Medicine, Yokosuka, Japan",
            "department": ""
        }
    ],
    "date_submitted": "2025-07-28T19:47:19.168000+03:00",
    "date_accepted": "2025-11-09T19:13:26.448000+03:00",
    "date_published": "2026-04-08T01:45:00+03:00",
    "render_galley": null,
    "galleys": [
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            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/uciem_cpcem/article/50496/galley/49501/download/"
        }
    ]
}