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Viral Myocarditis

Viral Myocarditis. Viral Myocarditis. Viral Myocarditis is inflammation of heart muscle by Viruses. Many viruses have been implicated as causes of myocarditis . ( Coxsackie virus 40%, Cytomegalovirus, Hepatitis C, Herpes, HIV, Parvovirus)

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Viral Myocarditis

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  1. Viral Myocarditis

  2. Viral Myocarditis • Viral Myocarditis is inflammation of heart muscle by Viruses. Many viruses have been implicated as causes of myocarditis. ( Coxsackie virus 40%, Cytomegalovirus, Hepatitis C, Herpes, HIV, Parvovirus) • The definition of Viral Myocarditis varies, but the central feature is an infection of the heart, with an inflammatory infiltrate, and damage to the heart muscle, without the blockage of coronary arteries that define a heart attack or other common noninfectious causes.

  3. Viral Myocarditis Signs and symptoms: • Chest pain (often described as "stabbing" in character) • Congestive heart failure (leading to edema, breathlessness and hepatic congestion) • Palpitations (due to arrhythmias) • Sudden death (in young adults, myocarditis causes up to 20% of all cases of sudden death) • Fever (especially when infectious)

  4. Viral Myocarditis • Diagnosis • electrocardiographic (ECG) results. The ECG findings most commonly seen in myocarditis are T wave inversions. Irregular heart beat. • X-ray: enlarger heart. • Echocardiography: congestive heart failure.

  5. Viral Myocarditis • Treatment • As most viral infections cannot be treated with directed therapy, symptomatic treatment is the only form of therapy for those forms of myocarditis. • In the acute phase, supportive therapy, including bed rest, is indicated(not less than 3 months). For symptomatic patients, digoxin and diuretics provide clinical improvement..

  6. Viral Myocarditis Prognosis: • 1/3 complete recovery. • 1/3 improve clinically, but have residual myocardial dysfunction. • 1/3 with chronic heart failure which may cause mortality or require heart transplant.

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