Aim. To study the structure of appealability of the population for emergency medical care for cardiac reasons, and the conformity between the cardiac cause and diagnosis. Methods. Analyzed was the statistical data of appealability of the population for emergency medical care for cardiac reasons in a large industrial center of the Republic of Tatarstan, city of Kazan. Register cards of ambulance calls for the year 2010 served as materials for the study. Results. It was established that cardiac

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... asons account for 30% of all adult requests for emergency medical care. The main flow (96.4%) was formed by the primary appeals to the ambulance station, and much less frequently (3.6%) by primarily detectable visits to health institutions for acute forms of ischemic heart disease and arrhythmias. Analyzing the structure of cardiac reasons in nature of the requests for care it was revealed that the proportion of disease with a sudden cardiac profile is 37.1%, with acute care of different profiles - 44.5%, sudden illness of other profiles - 16.5%, other - 1.9%. The proportion of disease with a sudden cardiac profile in the structure of other reasons for seaking medical care is 5.5%. During primary referral to the ambulance station the frequency of diseases with a sudden cardiac profile varies depending on the reason and ranges from 24 to 38.9%. Conclusion. These established features of the analysis of appealability of the population for emergent medical care for cardiac reasons provides the basis for the establishment and improvement of the algorithm of questions to ask the caller of an ambulance and its introduction into the work of the dispatching service, which will increase the frequency of conformity of the cause and diagnosis.