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      Dangerous Impact – Commotio cordis

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          Abstract

          Sudden death following blunt chest trauma is a frightening occurrence known as ‘commotio cordis’ or ‘concussion of the heart’. It is speculated that commotio cordis could be caused by ventricular fibrillation secondary to an impact-induced energy that was transmitted via the chest wall to the myocardium during its vulnerable repolarization period. We describe a survivor of commotio cordis caused by a baseball. In this patient, an initial ventricular fibrillation was documented and converted by direct current defibrillation. Serial electrocardiographic changes (bifascicular conduction block and T wave inversion in precordial leads) were noticed in this patient. Our case suggested that coronary vasospasm might also play a role in commotio cordis.

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          Blunt impact to the chest leading to sudden death from cardiac arrest during sports activities.

          Sudden death from cardiac arrest in a young person may occur during sports play after a blunt blow to the chest in the absence of structural cardiovascular disease or traumatic injury (cardiac concussion or commotio cordis). We studied the clinical features of this apparently uncommon but important phenomenon. We identified cases from the registries of relevant agencies and organizations, as well as newsmedia accounts, and developed a clinical profile of 25 children and young adults, 3 to 19 years of age. Each victim collapsed with cardiac arrest immediately after an unexpected blow to the chest, which was usually inflicted by a projectile (such as a baseball or hockey puck). Incidents took place during organized competitive sports in 16 cases and in recreational settings at home, at school, or on the playground in 9. In each instance, the impact to the chest was not judged to be extraordinary for the sport involved and did not appear to have sufficient force to cause death. Twelve victims collapsed virtually instantaneously on impact, whereas 13 remained conscious and physically active for a brief time before cardiac arrest. Cardiopulmonary resuscitation was administered within about three minutes to 19 victims, but normal cardiac rhythm could be restored in only 2 (both incurred irreversible brain damage and died shortly thereafter). Seven victims (28 percent) were wearing some form of protective chest padding. We speculate that most sudden deaths related to impact to the chest (not associated with traumatic injury) are due to ventricular dysrhythmia induced by an abrupt, blunt precordial blow, presumably delivered at an electrically vulnerable phase of ventricular excitability. This profile of blunt chest impact leading to cardiac arrest adds to our understanding of the range of causes of sudden death on the athletic field and may help in the development of preventive measures.
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            Author and article information

            Journal
            CRD
            Cardiology
            10.1159/issn.0008-6312
            Cardiology
            S. Karger AG
            0008-6312
            1421-9751
            2000
            June 2000
            04 July 2000
            : 93
            : 1-2
            : 124-126
            Affiliations
            aDepartment of Pediatrics, National Cheng Kung University Hospital, and Departments of bPediatrics and cEmergency Medicine, Tainan Municipal Hospital, Tainan, Taiwan, ROC
            Article
            7013 Cardiology 2000;93:124–126
            10.1159/000007013
            10894918
            © 2000 S. Karger AG, Basel

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            Page count
            Figures: 3, References: 9, Pages: 3
            Categories
            Case Report

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