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A Doxorubicin-Induced Murine Model of Dilated Cardiomyopathy In Vivo
Published on: May 16, 2020
Neonatal dilated cardiomyopathy
Paulo Soares1, Gustavo Rocha1, Susana Pissarra1
1Division of Neonatology, Hospital of São João, Faculty of Medicine, University of Porto, Porto, Portugal.
Insights
Dilated cardiomyopathy, a common heart muscle disease in children, often presents in infants. This review details its causes, diagnosis via echocardiography, and genetic factors, offering insights into management.
Area of Science:
- Pediatric Cardiology
- Genetics
- Cardiovascular Diseases
Background:
- Cardiomyopathies are rare heart muscle diseases with diverse causes and phenotypes, invariably leading to cardiac dysfunction.
- Dilated cardiomyopathy is the most frequent type in children, with most cases diagnosed before age one.
- Etiologies include acquired factors like myocarditis and genetic predispositions, with inherited forms seen in 25-50% of patients.
Purpose of the Study:
- To provide a comprehensive review of dilated cardiomyopathy in newborns.
- To detail the classification, epidemiology, and management strategies.
- To present an updated overview of genetic studies and echocardiographic assessments for this condition.
Main Methods:
- Review of existing literature on dilated cardiomyopathy in pediatric populations.
- Analysis of diagnostic criteria, including echocardiographic and tissue Doppler studies.
- Synthesis of current knowledge on genetic etiologies and management protocols.
Main Results:
- Dilated cardiomyopathy is characterized by left ventricular dilatation and global hypokinesis.
- Echocardiography and tissue Doppler imaging are primary diagnostic tools.
- Genetic factors play a significant role in a substantial proportion of cases.
Conclusions:
- Dilated cardiomyopathy in newborns requires thorough evaluation of both acquired and genetic factors.
- Accurate echocardiographic assessment is crucial for diagnosis and management.
- Understanding genetic underpinnings is key to advancing treatment and prognosis.
Abstract:
Cardiomyopathies are rare diseases of the heart muscle, of multiple causes, that manifest with various structural and functional phenotypes but are invariably associated with cardiac dysfunction. Dilated cardiomyopathy is the commonest cardiomyopathy in children, and the majority present before one year of age. Its etiology may be acquired or genetic. Myocarditis is an important cause and is responsible for the majority of acquired cases. Inherited (familial) forms of dilated cardiomyopathy may occur in 25-50% of patients. Echocardiographic and tissue Doppler studies are the basis for diagnosis of dilated cardiomyopathy in most patients. Marked dilatation of the left ventricle with global hypokinesis is the hallmark of the disease. This review will cover the classification, epidemiology and management of newborns with dilated cardiomyopathy. In particular, a comprehensive and up-to-date review of the genetic study of dilated cardiomyopathy and of detailed echocardiographic assessment of these patients will be presented.
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