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Tomchyk N.V., Lyalikau S.A.
Using an index of transmural repolarization dispersion for the diagnosis of hemodynamically significant arrhythmias in children with left ventricular false tendons
Grodno State Medical University, Grodno, Republic of Belarus

Vestnik VGMU. 2017;16(4):58-65.

Objectives. To determine the prognostic value of the transmural dispersion repolarization index in children with left ventricular false tendons and to evaluate the contribution of this indicator to the diagnosis of cardiac arrhythmias.
Material and methods. 159 children aged 0-17 years have been examined.
Results. It has been found that the transmural dispersion repolarization index is higher in children with the combination of minor cardiac abnormalities and left ventricular false tendons compared to patients with the isolated character of microstigma (p<0,03).
The risk to develop hemodynamically significant atrioventricular blocks is higher (р<0,0001) in toddlers with left ventricular false tendons, at low values of Tpeak-Tend interval (Tp-e) and high indices of √RR; Tp-e /QT; PQ; QT; QTP. The probability of detecting hemodynamically significant sinoatrial blocks (p <0,001) is higher in boys born prematurely, in children with the increasing of √RR and Tp-e/QTc indices, increased duration of QTc, QTp intervals. The girls with the reduction of Tp-e and QTp intervals and increase of Tp-e/QT index on an electrocardiogram have the greatest risk of the presence of frequent supraventricular extrasystole (p <0,05).
Key words: prognostication, left ventricular false tendons, index of transmural dispersion repolarization, arrhythmias.


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Information about authors:
Tomchyk N.V. – teacher of the Chair of Childhood Diseases No. 1, Grodno State Medical University;
Lyalikau S.A. – Doctor of Medical Sciences, professor, head of the Chair of Clinical Laboratory Diagnosis & Immunology, Grodno State Medical University.

Correspondence address: Republic of Belarus, 230015, Grodno, 80, Gorky str., Grodno State Medical University, Chair of Childhood Diseases No. 1. E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра. – Natalia V. Tomchyk.

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