Annals of emergency medicine
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Cardiac arrest from electrical shock or lightning strike is associated with significant mortality and requires modification and extension of standard advanced life support measures to achieve successful resuscitation. Patients who experience electrical shock or lightning strike may sustain cardiac and respiratory arrest secondary to the direct effects of current. However, the majority of victims have associated multisystem involvement, including neurologic complications, cutaneous burns, and associated blunt trauma. ⋯ Unique considerations include vigorous fluid resuscitation and spinal immobilization for victims of electrical shock and reversal of normal multiple casualty triage priorities when managing several lightning strike victims. Because the majority of victims are relatively young and seldom have significant underlying cardiac disease, the chance for successful resuscitation may be greater for patients who experience sudden death from electrical shock or lightning strike than for those with other causes of cardiac arrest, even among patients with initial rhythms traditionally unresponsive to therapy. Although numerous specialized aspects are required for the successful management of victims of electrical shock and lightning strike, the following article focuses on the unique considerations necessary for immediate care of cardiac arrest victims, with emphasis on the underlying mechanisms of sudden death and currently recommended guidelines for resuscitation.
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CPR in infants and children has a number of unique clinical, legal, and ethical aspects. The distinguishing clinical aspects relate to the circumstances of pediatric cardiopulmonary arrest and their prognostic implications. The relevant legal and ethical considerations derive from the special triadic physician-child-parent relationship, the standing of parents as surrogate decision makers, and the progressive development of decisional capacity in maturing children. This paper discusses the implications of guidelines and policies concerning decisions to provide, withhold, or withdraw CPR and life support systems.
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CPR has been incorporated into emergency cardiac care with the evolution of both basic and advanced life support components. To date, however, the psychological issues associated with these skills have not been addressed. ⋯ This paper describes ongoing research on the impact of CPR on the rescuer, discusses a method of talking to families after a loved one has suddenly died, and provides insights into the psychological dysfunctions that emergency personnel may be exposed to. The technique and importance of critical incident debriefing following an unsuccessful CPR attempt is discussed.
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External defibrillation was first reported in 1956, mouth-to-mouth ventilation was first reported in 1958, and closed-chest compression in 1960. While these developments began the modern era of CPR, accounts of resuscitative efforts go back to ancient times. ⋯ This issue of the Annals of Emergency Medicine contains the proceedings of the most recent National Conference on CPR and ECC. At this conference, a consensus was reached by an international gathering of scientists and clinicians for guidelines on adult basic and advanced life support, as well as on pediatric and neonatal life support.
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Real-time hemodynamic monitoring provides useful information that can be used to assess and optimize mechanical and pharmacological interventions during CPR. The standard algorithms should always be the initial approach to resuscitation, because they offer a rapid, logical, coordinated series of treatments with proven success. Pressure and flow measurements during conventional, closed-chest CPR in humans indicate that the technique typically produces a hemodynamic state resembling profound cardiogenic shock, with a low systemic arterial pressure, markedly reduced cardiac output, and high intravascular filling pressures. ⋯ If one or more hemodynamic parameters are being monitored at the time the patient develops cardiac arrest (eg, an intensive care unit patient who has an arterial line and a pulmonary artery catheter in place), it is appropriate for the resuscitation team to pay attention to the data that are generated during the resuscitation, particularly if the initial algorithm approach is not successful. For patients who are not being monitored at the time of their arrest, end-tidal carbon dioxide measurements provide noninvasive, semiquantitative information that can help the team detect and troubleshoot problems during resuscitation. Further research and better, more affordable technologies are needed to provide in- and out-of-hospital resuscitation teams feedback on the hemodynamic effectiveness of their resuscitative efforts.