A new emergency medicine system that sent patients to designated cardiac receiving centers dramatically increased the survival rate of victims of sudden cardiac arrest in Arizona, according to a study. Under the study, 31 hospitals, serving about 80 percent of the state's population, were designated as cardiac receiving centers between December 2007 and November 2010. Approximately 55 emergency medicine service agencies also participated in the study.http://feeds.sciencedaily.com/~r/sciencedaily/~3/A...