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Identifying Non-invasive Tools to Distinguish Acute Myocarditis from Dilated Cardiomyopathy in Children.

Abstract：

:There is often a diagnostic dilemma in pediatric patients presenting with depressed ventricular function, as myocarditis and dilated cardiomyopathy (DCM) of other etiologies can appear very similar. Accurate identification is critical to guide treatment and to provide families with the most accurate expectation of long-term outcomes. The objective of this study was to identify patterns of clinical presentation and to assess non-invasive measures to differentiate patients with acute myocarditis from other forms of DCM. We identified all children (< 18 years) from our institution with a diagnosis of idiopathic DCM or myocarditis based on endomyocardial biopsy or explant pathology (1996-2015). Characteristics at the time of presentation were compared between patients with a definite diagnosis of myocarditis and those with idiopathic DCM. Data collected included clinical and laboratory data, radiography, echocardiography, and cardiac catheterization data. A total of 58 patients were included in the study; 46 (79%) with idiopathic DCM and 12 (21%) with acute myocarditis. Findings favoring a diagnosis of myocarditis included a history of fever (58 vs. 15%, p = 0.002), arrhythmia (17 vs. 0%, p = 0.003), higher degree of cardiac enzyme elevation, absence of left ventricular dilation (42 vs. 7%, p = 0.002), segmental wall motion abnormalities (58 vs. 13%, p = 0.001), lower left ventricular dimension z-score (3.7 vs. 5.2, p = 0.031), and less severe depression of left ventricular systolic function. There are notable differences between patients with myocarditis and other forms of DCM that can be detected non-invasively at the time of presentation without the need for endomyocardial biopsy. These data suggest that it may be possible to develop a predictive model to differentiate myocarditis from other forms of DCM using non-invasive measures.

journal_name

Pediatr Cardiol

journal_title

Pediatric cardiology

authors

Suthar D,Dodd DA,Godown J

doi

10.1007/s00246-018-1867-y

subject

Has Abstract

pub_date

2018-08-01 00:00:00

pages

1134-1138

issue

eissn

0172-0643

issn

1432-1971

pii

10.1007/s00246-018-1867-y

journal_volume

pub_type

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Identifying Non-invasive Tools to Distinguish Acute Myocarditis from Dilated Cardiomyopathy in Children.