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Analysis of Right Atrial Function in Obese Pediatric Patients | OMICS International | Abstract
ISSN: 2165-7904

Journal of Obesity & Weight Loss Therapy
Open Access

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Research Article

Analysis of Right Atrial Function in Obese Pediatric Patients

José Augusto A Barbosa2, Bruno Morais Damião2, Maria Carmo P3 and Márcia Barbosa1*
1Ecocenter-Socor Hospital, Avenida do Contorno, 10500. Belo Horizonte, Minas Gerais, Brazil
2Hospital Julia Kubitscheck- FHEMIG, AV. Cristiano Resende 2745. Belo Horizonte, Mina Gerais, Brazil
3Department of Pediatrics/ Echocardiography from the Federal University of Minas Gerais, Avenida Alfredo Balena, 460, Belo Horizonte, Minas Gerais, Brazil
Corresponding Author : Marcia M Barbosa
Conde do Rio Pardo
288 – Vila do Conde
3400000 Nova Lima, MG - Brazil
Tel: +553192781727
Fax: +55 3135812606
E-mail: [email protected]
Received October 30, 2013; Accepted January 03, 2014; Published January 06, 2014
Citation:Barbosa M , Barbosa JAA , Damião BM, Maria Carmo P, (2014) Analysis of Right Atrial Function in Obese Pediatric Patients. J Obes Weight Loss Ther 4:204. doi:10.4172/2165-7904.1000204
Copyright: © 2014 Barbosa M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Background : Left atrial enlargement and right and left ventricular dysfunction have been described in obese Patients. A number of studies have also described atrial dysfunction in obese children and adolescents. Objective: The aim of the present study was to investigate right atrial dysfunction in obese pediatric patients and Compare echocardiography findings between these patients and non-obese controls. Methods : Doppler echocardiography was performed on 50 obese pediatric patients (mean BMI=29.8 kg/m2) and 46 lean healthy controls. Systolic and diastolic function in both ventricles was investigated through conventional Doppler echocardiography. Right atrial function was evaluated using Color Doppler Myocardial Imaging (CDMI). Results: No differences were detected between groups with regard to left ventricular ejection fraction. The S wave of the free Wall of the right ventricle was similar in both groups (13.8 ± 1.7 vs. 13.7 ± 1.6, p=0.655). The e’/A’ ratio in the right Ventricle was significantly lower in the obese patients (0.9 ± 0.4 vs.1.2 ± 0.3, p=0.007). CDMI analysis of the right atrium and inter-atrial septum showed significantly lower, strain and strain rate in obese patients (82.6 ± 29.8 vs. 98.6 ± 38.7, p=0.020; 3.9 ± 1.0 vs. 4.4 ± 1.2, p<0.001; 50.9 ± 25.0 vs. 81.1 ± 21.6, p<0.001; and 2.2 ± 1.0 vs. 3.3 ± 0.8, p<0.001, respectively). Conclusion: The findings of the present study suggest incipient right atrial dysfunction, which may be secondary to an incipient impairment of myocardial relaxation in the right ventricle in obese children (BMI above 95th percentile).

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