The dynamics of the blood content of N-terminal fragment of brain natriuretic peptide (NT-proBNP) in hypertrophic cardiomyopathy in children

Author:

Ermolenko Vasilisa S.1,Silnova I. V.1,Basargina E. N.1

Affiliation:

1. Scientific Centre of Children Health

Abstract

N-terminal pro-brain natriuretic peptide (NT-proBNP) is the unbiased marker of congestive heart failure. Levels of this marker have not been studied in children with hypertrophic cardiomyopathy (HCM). There are presented data of the comparison of blood concentrations of NT-proBNP in hereditary HCM and other diseases associated with myocardial hypertrophy in children. There was examined 41 patient (age: from 3 to 90 months) with myocardial hypertrophy The patients were divided into 3 groups. There was evaluated the interrelationship between NT-proBNP concentrations and the severity of heart failure and echocardiographic parameters. Results. It was established that in the first group of patients with hereditary HCM (41,4%) there was revealed the significant positive relationship between NT-proBNP concentrations and values of the bloodflow velocity and pressure gradient in the LV outflow track, interventricular septum thickness and LVposterior wall thickness (LVPWT), in cases from the second group (34.1%) with syndromes of malformations and metabolic diseases - with RV anterior wall thickness and LVposterior wall thickness, bloodflow velocity and pressure gradient in the RV outflow track, in the third group with myocardial remodeling against background of arterial hypertension the positive correlation was revealed with LVPWT, whereas negative one - with the fraction of left ventricular output. Maximal blood level of NT-proBNP in blood was detected in pronounced hemodynamic disturbances in patients from the second and third group Conclusion. NT-proBNP level assessment is necessary for differentiated diagnostics of HCM and associated diseases.

Publisher

National Medical Research Center for Childrens Health

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