For the purpose of investigating the correlation between incidence of myocardial infarction (MI) and family history of cardiovascular disease (CVD), the study of prevalence of CVD among the first-degree relatives of patients with a known MI episode has been conducted. Medico-genetic files of two groups of patients with evidence of MI on ECG at rest have been analyzed: first group comprising patients who had an episode of MI before 55 years of age and second group comprising patients who had an episode after 55 years of age. A fairly high percentage of CVD in families of majority of patients with a known episode of MI has been noticed. However, this study has demonstrated a relatively low prevalence of coronary artery disease (CAD) and MI, including MI episodes before the age of 55, among fathers of patients from both groups. Moreover, occurrence of CAD and MI in fathers of the subgroup of patients who suffered from MI before 50 years of age of these patients practically showed no difference from that of subgroups of patients with episodes of MI at an older age. A fairly large amount of patients in both groups had no history of CAD in their families (41,5% and 41,2%, respectively). Considering the results mentioned above, there is no evidence to suggest that a predisposition of patients to MI episode at a younger age increases with existence of this disease in fathers of such patients. Results of our study suggest that increased presence of CVD and risk factors in first-degree relatives increases the probability of MI CAD in most patients of both groups regardless of the age of development of an MI episode.

Within the limits of research indicators of central hemodynamics in interrelation with tolerance to physical activity at pregnant women with myocarditis were estimated. 109 pregnant women from 19-35 years in 2 trimester gestosis are surveyed. Spent an electrocardiogram, EhoKG with definition a myocardial working index, test with physical activity. Results have shown that frequency of heartbeat, average pulmonary pressure, the sizes left ventricle authentically higher in group of pregnant women with myocarditis that is accompanied by decrease contractile abilities of a myocardium and an index myocarditis a reserve. The length of the passed distance the walking 6 minute test is more in group of healthy women. Direct correlation dependence between the passed distance and factor myocarditis a reserve in group of pregnant women with myocarditis is defined.

Aim. Examine the frequency and nature rhythm and conduction disorders of a heart in young people with I degree mitral valve prolapse. Material and methods. Examined 85 men aged 18-38 with I degree mitral valve prolapse without mitral regurgitation. Investigation program included medical examination, registration of ECG room on a 12 - lead «Hellidge», Holter ECG monitoring, echocardiogram. Results. Holter ECG can detect rare forms of rhythm and conduction disorders of a heart, uncommitted during ECG recording in 12 standard leads. In patients with MVP 1 degree high grade ventricular arrhythmias recorded in 12% of cases. AV blockade of I and II degrees are three times more likely to occur when HM ECG compared with the registration of standard 12-lead ECG. Most often it is identified AV blockade of II degrees according to daily ECG monitoring during the night. Conclusion. In the examination of young people of military age involvement into broad practice of Holter ECG is prospective direction.