Статья

СИСТЕМНОЕ ВОВЛЕЧЕНИЕ СОЕДИНИТЕЛЬНОЙ ТКАНИ И ВОВЛЕЧЕНИЕ СОЕДИНИТЕЛЬНОЙ ТКАНИ СЕРДЦА КАК ВАЖНАЯ ХАРАКТЕРИСТИКА ПЕРВИЧНОГО ПРОЛАПСА МИТРАЛЬНОГО КЛАПАНА

Э. В. Земцовский, Э. Г. Малев, С. В. Реева
2014

Aim. To evaluate systemic involvement of connective tissue (SICT) in young adultswith mitral valve prolapse (MVP) without significant mitral regurgitation (MR).Material and methods. We studied 78 asymptomatic young subjects (mean age19,7±1,6, 72% male) with MVP in comparison with 80 sex- and age-matchedhealthy subjects. We performed phenotypic examination of MVP patients andcontrol group subjects, and echocardiographic study to identify the minor heartanomalies. Longitudinal strain and strain rate (SR) were determined using spackletracking (Vivid 7 Dimension GE, EchoPAC’08).Results. We identified two clusters of patients with MVP. In the first cluster (17subjects, 28% of the MVP group) a significant reduction of longitudinal systolicstrain observed comparing to the control group and the second cluster (61 subjects,72%). Global strain in the second cluster did not differ significantly from the controlgroup. Echocardiographic study showed nonsignificant increase in the averagenumber of SICT points in the first cluster and highly significant increase of the minorheart anomalies’ number in this group of patients.Conclusion. Myocardial deformation assessment allowed to identify the signs ofcardiomyopathy in quarter of young asymptomatic patients with MVP. Increasingnumber of minor heart anomalies in the group with primary MVP and cardiomyopathyallows considering other valve prolapses, dilatation of major vessels, basal and thickLV chords as features of the SICT in primary MVP. A great number of minor heartanomalies in primary MVP may indicate a change in the heart extracellular matrixthat can cause the development of cardiomyopathy in primary MVP.

Земцовский Э. В., Малев Э. Г., Реева С. В. СИСТЕМНОЕ ВОВЛЕЧЕНИЕ СОЕДИНИТЕЛЬНОЙ ТКАНИ И ВОВЛЕЧЕНИЕ СОЕДИНИТЕЛЬНОЙ ТКАНИ СЕРДЦА КАК ВАЖНАЯ ХАРАКТЕРИСТИКА ПЕРВИЧНОГО ПРОЛАПСА МИТРАЛЬНОГО КЛАПАНА. Российский кардиологический журнал. 2014;(9):54-60. https://doi.org/10.15829/1560-4071-2014-9-54-60
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