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The retrospective study was conducted aimed at the detection of risk factors of myocardial infection in elderly and senile patients after hip arthroplasty. Materials and methods. 303 elderly and senile patients (older than 65 years old) with subcapital fracture and consequent hip arthroplasty were enrolled into the study. Logistic regression equations were used for assessment of prognostic value of signs of myocardial infraction development. Results. In the early post-operative period myocardial infraction developed in 12 cases (3.9%). The following controlable and uncontrolable risk factors were detected in elderly and senile patients, most significant are presented first: cardial risk as per K.A. Eagle score – 2 scores and more, acute post-operative anemia with hemoglobin level below 95 g/l and type of anesthesia. The indicator integrating these three rates had the highest prognostic value.