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Ventricular fibrillation (VF) is usually terminated by a single countershock, if delivered immediately after onset of VF. However, little is known about factors determining efficiency of the first countershock in prolonged VF. Automated defibrillators as used by EMTs during out-of-hospital resuscitations continuously record the patient's rhythm on audio tapes. This allows an analysis of arrhythmia...
Previous studies indicate a marked circadian variation of sudden cardiac death (SD). Its weekly and monthly distribution, however is unclear. We analyzed the West Berlin (2.1 Mio population) emergency medical services data bank with respect to the weekly and monthly distribution of 24.061 (54% male) consecutive patients with SD registered during the years 1987-1991. SD was defined as sudden non-traumatic...
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