Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement

Objective: To assess children with myocarditis, the frequency of various presenting symptoms, and the accuracy of different investigations in the diagnosis. Methods: This was an observational study of 63 patients admitted to PICU with non-cardiac diagnosis. Cardiac enzymes, chest-X ray, echocardiogr...

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Main Authors: Hanaa Ibrahim Rady, Hanan Zekri
Format: Article
Language:English
Published: Elsevier 2015-01-01
Series:Jornal de Pediatria
Online Access:http://www.sciencedirect.com/science/article/pii/S0021755714001284
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author Hanaa Ibrahim Rady
Hanan Zekri
author_facet Hanaa Ibrahim Rady
Hanan Zekri
author_sort Hanaa Ibrahim Rady
collection DOAJ
description Objective: To assess children with myocarditis, the frequency of various presenting symptoms, and the accuracy of different investigations in the diagnosis. Methods: This was an observational study of 63 patients admitted to PICU with non-cardiac diagnosis. Cardiac enzymes, chest-X ray, echocardiography, and electrocardiogram were performed to diagnose myocarditis among those patients. Results: There were 16 cases of definite myocarditis. The age distribution was non-normal, with median of 5.5 months (3.25–21). Of the 16 patients who were diagnosed with myocarditis, 62.5% were originally diagnosed as having respiratory problems, and there were more females than males. Among the present cases, the accuracy of cardiac enzymes (cardiac troponin T [cTn] and creatine phosphokinase MB [CKMB]) in the diagnosis of myocarditis was only 63.5%, while the accuracy of low fractional shortening and of chest-X ray cardiomegaly was 85.7 and 80.9%; respectively. Cardiac troponin folds 2.02 had positive predictive value of 100%, negative predictive value of 88.7%, specificity of 100%, sensitivity of 62.5%, and accuracy of 90.5%. Conclusions: Children with myocarditis present with symptoms that can be mistaken for other types of illnesses. When clinical suspicion of myocarditis exists, chest-X ray and echocardiography are sufficient as screening tests. Cardiac troponins confirm the diagnosis in screened cases, with specificity of 100%. Resumo: Objetivo: Determinar as crianças com miocardite, a frequência de vários sintomas apresentados e a precisão de diferentes investigações no diagnóstico. Métodos: Estudo observacional de 63 pacientes internados na UTIP com diagnóstico de problemas não cardíacos. Os exames de enzimas cardíacas, raio-X do tórax, ecocardiograma e eletrocardiograma (ECG) foram realizados para diagnosticar miocardite dentre os pacientes. Resultados: Houve 16 casos de miocardite definida. A distribuição etária não foi normal, com média de 5,5 meses (3,25-21). Dos 16 pacientes diagnosticados com miocardite, 62,5% foram originalmente diagnosticados como com problemas respiratórios, e a mulheres estavam em maior número que os homens. Dentre nossos casos, a precisão das enzimas cardíacas (cTn e CKMB) no diagnóstico da miocardite foi de apenas 63,5%, apesar de a precisão da baixa fração de encurtamento (FS) e do raio-X de tórax revelando cardiomegalia ter sido 85,7% e 80,9%; respectivamente. A Troponina Cardíaca em 2,02 vezes apresentou valor preditivo positivo = 100%, valor preditivo negativo = 88,7%, especificidade = 100%, sensibilidade = 62,5% e precisão = 90,5%. Conclusões: As crianças com miocardite apresentam sintomas que podem ser confundidos com outros tipos de doenças. Quando há suspeita clínica de miocardite, raio-X de tórax e ecocardiografia são testes de rastreamento suficientes. As Troponinas Cardíacas confirmam o diagnóstico em casos examinados, com especificidade de 100%. Keywords: Myocarditis, Cardiac enzymes, Troponin, Children, Pediatric intensive care unit, Palavras-chave: Miocardite, Enzimas cardíacas, Troponina, Crianças, Unidade de terapia intensiva pediátrica
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spelling doaj.art-9e3e593b4f094e39b7fc08af9c90ead42022-12-22T04:01:55ZengElsevierJornal de Pediatria0021-75572015-01-019119397Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvementHanaa Ibrahim Rady0Hanan Zekri1Corresponding authors.; Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, EgyptCorresponding authors.; Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, EgyptObjective: To assess children with myocarditis, the frequency of various presenting symptoms, and the accuracy of different investigations in the diagnosis. Methods: This was an observational study of 63 patients admitted to PICU with non-cardiac diagnosis. Cardiac enzymes, chest-X ray, echocardiography, and electrocardiogram were performed to diagnose myocarditis among those patients. Results: There were 16 cases of definite myocarditis. The age distribution was non-normal, with median of 5.5 months (3.25–21). Of the 16 patients who were diagnosed with myocarditis, 62.5% were originally diagnosed as having respiratory problems, and there were more females than males. Among the present cases, the accuracy of cardiac enzymes (cardiac troponin T [cTn] and creatine phosphokinase MB [CKMB]) in the diagnosis of myocarditis was only 63.5%, while the accuracy of low fractional shortening and of chest-X ray cardiomegaly was 85.7 and 80.9%; respectively. Cardiac troponin folds 2.02 had positive predictive value of 100%, negative predictive value of 88.7%, specificity of 100%, sensitivity of 62.5%, and accuracy of 90.5%. Conclusions: Children with myocarditis present with symptoms that can be mistaken for other types of illnesses. When clinical suspicion of myocarditis exists, chest-X ray and echocardiography are sufficient as screening tests. Cardiac troponins confirm the diagnosis in screened cases, with specificity of 100%. Resumo: Objetivo: Determinar as crianças com miocardite, a frequência de vários sintomas apresentados e a precisão de diferentes investigações no diagnóstico. Métodos: Estudo observacional de 63 pacientes internados na UTIP com diagnóstico de problemas não cardíacos. Os exames de enzimas cardíacas, raio-X do tórax, ecocardiograma e eletrocardiograma (ECG) foram realizados para diagnosticar miocardite dentre os pacientes. Resultados: Houve 16 casos de miocardite definida. A distribuição etária não foi normal, com média de 5,5 meses (3,25-21). Dos 16 pacientes diagnosticados com miocardite, 62,5% foram originalmente diagnosticados como com problemas respiratórios, e a mulheres estavam em maior número que os homens. Dentre nossos casos, a precisão das enzimas cardíacas (cTn e CKMB) no diagnóstico da miocardite foi de apenas 63,5%, apesar de a precisão da baixa fração de encurtamento (FS) e do raio-X de tórax revelando cardiomegalia ter sido 85,7% e 80,9%; respectivamente. A Troponina Cardíaca em 2,02 vezes apresentou valor preditivo positivo = 100%, valor preditivo negativo = 88,7%, especificidade = 100%, sensibilidade = 62,5% e precisão = 90,5%. Conclusões: As crianças com miocardite apresentam sintomas que podem ser confundidos com outros tipos de doenças. Quando há suspeita clínica de miocardite, raio-X de tórax e ecocardiografia são testes de rastreamento suficientes. As Troponinas Cardíacas confirmam o diagnóstico em casos examinados, com especificidade de 100%. Keywords: Myocarditis, Cardiac enzymes, Troponin, Children, Pediatric intensive care unit, Palavras-chave: Miocardite, Enzimas cardíacas, Troponina, Crianças, Unidade de terapia intensiva pediátricahttp://www.sciencedirect.com/science/article/pii/S0021755714001284
spellingShingle Hanaa Ibrahim Rady
Hanan Zekri
Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement
Jornal de Pediatria
title Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement
title_full Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement
title_fullStr Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement
title_full_unstemmed Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement
title_short Prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement
title_sort prevalence of myocarditis in pediatric intensive care unit cases presenting with other system involvement
url http://www.sciencedirect.com/science/article/pii/S0021755714001284
work_keys_str_mv AT hanaaibrahimrady prevalenceofmyocarditisinpediatricintensivecareunitcasespresentingwithothersysteminvolvement
AT hananzekri prevalenceofmyocarditisinpediatricintensivecareunitcasespresentingwithothersysteminvolvement