Articles: emergency-medical-services.
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In a Danish suburban community the following attempts were made aimed at increasing survival of out-of-hospital cardiac arrest (CA): the citizens were offered training in diagnosis and treatment of CA and the ambulances serving the community were provided with a semiautomatic defibrillator. The results of these effects were evaluated over a two-year period. One hundred and seventy persons out of a population of 85,824 received training in CPR. ⋯ In 336 situations tape recordings of the ECG at CA were available for analysis. Ventricular fibrillation was present in all of the 129 cases where DC-conversion was advised by the apparatus. There were two additional cases, one of ventricular fibrillation of low frequency and one of ventricular tachycardia where DC-conversion was not advised, but might have been beneficial.
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To estimate the frequency of violence directed toward prehospital providers; to identify the methods used to manage violent patients in the prehospital setting; and to identify the educational, medical, and legal issues in the prehospital management of violent patients. ⋯ The potential for injury to prehospital providers from violent patients is probably widespread, and no mechanism for identifying injuries or exposure to violent patients currently exists. All systems should have protocols for managing violent patients and for restraint application. Educational sessions for self-defense and assessment of the scene for violence may be indicated.
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Multicenter Study Comparative Study
Effect of first-responder automated defibrillation on time to therapeutic interventions during out-of-hospital cardiac arrest. The Multicenter High Dose Epinephrine Study Group.
The effect of automated defibrillation provided by basic emergency medical technician (EMT) first-responder units on the time intervals to other critical interventions in the management of out-of-hospital cardiac arrests is unknown. The purpose of this study was to define and compare elapsed time intervals to basic CPR, paramedic arrival, initial countershock, endotracheal intubation, IV access, and initial adrenergic drug therapy in first-responder automated defibrillation/paramedic versus basic EMT/paramedic emergency medical services systems. ⋯ First-responder automated defibrillation/paramedic systems provide not only shorter times to initial countershock, as compared with basic EMT/paramedic systems, but by having delegated initial countershock to first-responders, they also allow for significantly shorter times from paramedic arrival to IV access, endotracheal intubation, and initial adrenergic drug therapy interventions.
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To determine the time between ambulance arrival at the scene to paramedic arrival at the patient (arrival to patient contact) and the effect of barriers to paramedic movement on this time interval. ⋯ The arrival-to-patient contact interval adds a variable and potentially lengthy amount of time to the total prehospital response time interval, and barriers impeding paramedic movement to the patient prolong this time interval. In 25% of all observed paramedic calls, the arrival-to-patient contact interval was more than four minutes. Measurement of the time from ambulance arrival on the scene to paramedic arrival at the patient is necessary to appropriately determine the relationship among total prehospital response time, paramedic interventions, and patient outcome.
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Early defibrillation by emergency medical technicians or even less qualified personnel has been shown to improve survival rates for out-of-hospital cardiac arrest caused by ventricular fibrillation. It has been questioned whether these favourable results can be applied within the context of physician-attended emergency medical systems. ⋯ The first 2 years of experience with 499 technician-initiated resuscitation attempts in which the mobile intensive care unit of Klinikum Steglitz was involved, confirmed the results of the pilot study with an improved long-term survival rate (18%) for patients with ventricular fibrillation. We conclude that EMT defibrillation should be introduced in emergency physician-attended two-tiered emergency medical systems, whenever a thorough analysis of the existing rescue systems exhibits a 'relevant frequency' of resuscitation and response interval of 15 min or less.