The purpose of the research was to reveal the disturbance of intracardial hemodynamics in athletes with mitral valve prolapse (MVP). 118 athletes (average age - 16 + 4,93 years) were inspected. They were divided into 4 groups according to their sports specialization. MVP was found out in 40 persons. It was a verified by the echocardiography method. The 1st degree prolapse was detected in 39 persons (33,1%), the 2nd one - in 19 (16,1%). The patients passed the complex of clinicoinstrumental inspection (the record of standard ECG and its daily monitoring, the analysis of the variability of cardiac rhythm, echocardiography with Doppler research of bloodstream). During the realization of electrocardiography and daily monitoring of ECG of rhythm disturbance as ventriculoatrial extrasystole, cataplexy, syndrome early repolarization, syndrome of WPW were revealed in these patients.
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