FIELD: medicine.
SUBSTANCE: invention relates to medicine, namely to cardiology. ECG examination is performed to patient. Registration of signal-averaged ECG and transesophageal electrocardiostimulation (TE ECS) are carried out. Duration of filtered wave "P" (FiP-P) of signal-averaged ECG, dispersion of wave "P" (Pd), frequency threshold of arrhythmia induction (FTAI) and its duration are determined by means of TE ECS, risk of atrium fibrillation development (RAFD) being determined by original mathematical formula. If RAFD values are to 0.5, high during 1-3 months risk of AF development is identified. If values are from 0.5 to 1.5 - average from 3 months to 1 year risk of AF development. If values are higher than 1.5 - low, more than 1 year risk of AF development is identified after the first examination of patient.
EFFECT: method increases accuracy of determining risk of AF development after the first examination due to analysis of interaction of ECG and TEECS indices.
5 tbl, 4 ex
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