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Chapter: Paediatrics: Cardiovascular

Paediatrics: Myocarditis

Myocarditis may be due to: · Infections: viral, e.g. coxsackie B, EBV. · Kawasaki disease. · Drugs: adriamycin.

Myocarditis

 

Myocarditis may be due to:

·  Infections: viral, e.g. coxsackie B, EBV.

 

·  Kawasaki disease.

 

·  Drugs: adriamycin.

 

·  Connective tissue disease: SLE; rheumatoid arthritis; rheumatic fever; sarcoidosis.

 

Clinical features

 

Variable and will depend on the age of the patient and on the time course of underlying disease. Specific cardiovascular symptoms include progres-sive worsening of dyspnoea and congestive cardiac failure. Sudden onset of ventricular arrhythmia may occur.

 

Examination

 

Typical cardiovascular examination includes:

·  weak pulses;

 

·  tachycardia;

 

·  gallop heart rhythm;

 

·  distant heart sounds.

 

Diagnosis

 

Echocardiography shows poor ventricular function. Definitive histological diagnosis is made after percutaneous endomyocardial biopsy. CXR shows cardiomegaly; ECG shows reduced QRS complex size.

 

Treatment

 

This is directed at the underlying cause and at controlling symptoms of congestive heart failure. Arrhythmias should be treated. Cardiac transplan-tation is needed in patients with refractory heart failure.

 

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Paediatrics: Cardiovascular : Paediatrics: Myocarditis |


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