Summary
Sudden out-of-hospital cardiac arrest is a leading cause of death and only 5–8% of patients survive such event. Defibrillation is the mose effective treatment and should performed within 5 minutes; however, its effectiveness diminishes with each passing minute. “Early defibrillation” is the use of automated external defibrillators (AEDs) by trained public-safety personnal (“first responder”), whereas “public access” defibrillation describes AED use by persons who have no specific AED training. Several studies in the US and in Europe show that first responder defibrillation will increase the number of survivors of out-of-hospital cardiac arrest compared to paramedics. This is caused by a shorter “call-to-arrival-time” in first responders compared to paramedics. In Europe, programs for the use of automated external defibrillators exist only occasionally. Reasons for this are the lack of open-mindedness, logistic and legal problems. In Germany, there are only few AED programs with promising results. At the present time, placement of automated external defibrillators in public places frequented by a large number of susceptible people will increase overall survival. However, placement of AEDs in all public places is still debatable and further studies are necessary to estimate the potential impact of publicc access defibrillators.
Zusammenfassung
Die Prognose von Patienten mit prähospitalem Herz-Kreislauf-Stillstand (pHKS) durch Kammerflimmern ist schlecht und nur 5–8% der Patienten überleben ein solches Ereignis. Die Defibrillation ist das entscheidende therapeutische Verfahren und sollte beim pHKS innerhalb von 5 Minuten erfolgen. Jede Minute, die vergeht, verschlechtert den Erfolg der Defibrillation. „Frühdefibrillation“ wird als Intervention mittels automatisierter externer Defibrillatoren (AED) durch nicht ärztliche Rettungskräfte verstanden, wobei zwischen der „First Responder“ Defibrillation (trainierte Laienhelfer) und der „Public Access“ Defibrillation (zufällig in der Nähe von AED anwesende untrainierte Laien) unterschieden wird. In den meisten bisher vorliegenden Studien aus USA und Europa wurde nachgewiesen, dass die AED-Anwendung durch trainierte Ersthelfer zu höheren Überlebensraten führte als beim Einsatz professioneller Helfer („NAW-Team“). Dieses wurde damit begründet, dass die „call-to-arrival-time“ bei Ersthelfern wesentlich kürzer war als bei den professionellen Rettungssystemen. In Europa gibt es nur vereinzelt AED-Programme, bedingt durch mangelnde Aufgeschlossenheit und organisatorische oder juristische Probleme. In Deutschland gibt es bisher nur relativ wenige Erfahrungen mit systematischen AED-Programmen; erste Erfolge sind aber auch hier vielversprechend. Nach den bisher vorliegenden Studien scheint die Installation von AEDs an den Orten sinnvoll zu sein, an denen sich viele Menschen aufhalten. Die Frage, ob und in welchen öffentlichen Gebäuden AEDs-Programme vorgehalten werden sollen, bleibt Gegenstand weiterer Untersuchungen.
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Trappe, HJ. Frühdefibrillation in USA, Europa und Deutschland. Herzschr. Elektrophys. 16, 94–102 (2005). https://doi.org/10.1007/s00399-005-0463-z
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DOI: https://doi.org/10.1007/s00399-005-0463-z