Table of Contents
ISRN Pediatrics
Volume 2013, Article ID 970394, 7 pages
http://dx.doi.org/10.1155/2013/970394
Clinical Study

N-Terminal proBNP Levels and Tissue Doppler Echocardiography in Acute Rheumatic Carditis

Faculty of Medicine, Pediatric Department, Ain Shams University, Abbasseya Square, Cairo 11566, Egypt

Received 31 May 2013; Accepted 3 July 2013

Academic Editors: V. M. Di Ciommo and G. D. Overturf

Copyright © 2013 Alyaa A. Kotby et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. Rheumatic heart disease (RHD) is a leading cause of heart failure in children and young adults worldwide. B-type natriuretic peptide (BNP) is a useful marker of critical pediatric heart disease, and its N-terminal peptide, NT-proBNP, is elevated in congenital and acquired heart disease in children. Aim. To measure NT-proBNP levels as a marker of carditis in children with acute rheumatic carditis, as compared to children with quiescent RHD and healthy controls. Methods. 16 children with acute rheumatic carditis, 33 children with quiescent RHD, and a cohort of 30 healthy children were studied. Transthoracic echocardiography was performed to assess valve and cardiac function. Tissue Doppler echocardiography was performed for E/E′ (ratio between mitral inflow E wave and lateral mitral annulus E′ wave) and systolic strain. Results. NT-proBNP levels were significantly higher in children with acute rheumatic carditis and dropped with its resolution. Strain and E/E′ values were comparable among the three groups. Conclusion. NT-proBNP is significantly elevated in children with acute rheumatic carditis in the acute stage compared to children with quiescent RHD and healthy subjects, in the presence of comparable echocardiographic indices of LV systolic and diastolic function.