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[Dynamics of pre-hospital lethality in acute coronary insufficiency and myocardial infarct in Krasnoyarsk during 1963-1975].

The data on the dynamics of prehospital mortality in acute coronary failure (ACF) and myocardial infarction (MI) depending on the improvement in medical service in the prehospital stage of treatment are presented. The research showed that prehospital mortality in ACF and MI accounts for 75% of the total mortality. Among deaths registered in the prehospital stage 73.7% were sudden. As the result of improvements in prehospital medical service due to the training of physicians of the emergency medical service, the organization of cardiologic emergency aid teams, clinico-pathologic conferences held at the emergency medical service stations, etc. extrahospital mortality dropped from 45.6% (1963) to 26.2% (1975) with simultaneous drop in total mortality from 61.9% (1963) to 37.4% (1975).