Does myocarditis require hospitalization?

Written by Zhang Yue Mei

Cardiology

Updated on March 26, 2025

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Myocarditis is an infectious disease caused by viral infection leading to myocardial damage. Particularly extensive myocardial damage can pose significant risks to life and cause serious complications. Common complications include heart failure and arrhythmias, with severe cases possibly leading to sudden death. Therefore, patients with myocarditis must be hospitalized for treatment. Under the observation of doctors and nurses, effective rest can be ensured, and treatments such as antiviral and myocardial nutrition can be applied to prevent the occurrence of complications.

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Can myocarditis heal itself?

Myocarditis is an inflammatory disease of the myocardium. Common causes include viral infections, while bacterial and fungal infections can also cause myocarditis, but these are relatively less common. The onset of myocarditis can vary; it may be rapid, occasionally leading to acute heart failure and sudden cardiac death. However, most cases of myocarditis are self-limiting, though they can also progress to dilated cardiomyopathy. For individuals presenting with flu-like symptoms such as fever, general fatigue, muscle soreness, nausea, and vomiting, or other gastrointestinal issues, it is advisable to provide rest and nutritional support treatment. This is because these cold symptoms might also be indicative of myocarditis. Therefore, general treatment, rest, and nutrition should be emphasized for patients with colds.

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Obvious symptoms of myocarditis

Myocarditis refers to the inflammatory disease of the myocardium, with viral infection being the most common cause. Therefore, the majority of patients exhibit precursor symptoms of a viral infection one to three weeks before onset, such as fever, general fatigue, muscle soreness, or gastrointestinal symptoms like nausea and vomiting. This may be followed by palpitations, chest discomfort, chest pain, difficulty breathing, edema, and even fainting or sudden death. In the clinical diagnosis of myocarditis, the majority of cases initially present with symptoms of arrhythmias such as palpitations or a racing heart, but a minority may also experience fainting or Adams-Stokes syndrome (also known as cardiogenic cerebral ischemia).

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How is myocarditis treated?

Let's talk about how myocarditis is treated. Myocarditis is actually considered a self-limiting disease with no specific cure. However, treatment generally revolves around symptomatic treatment, combining conventional care and symptom management. For general treatment, bed rest is highly recommended for patients suffering from acute viral myocarditis to reduce the strain on the heart. Patients suffering from severe arrhythmias or heart failure are advised to rest in bed for at least one month and are not allowed to participate in strenuous physical labor for six months. For those without cardiac morphological or functional changes, rest for half a month is recommended, followed by avoiding heavy physical activity for three months. Additional antiviral treatments, such as interferon-alpha and Astragalus membranaceus, may be used; protective cardiac therapies or immunotherapies may also be administered. Symptomatic treatment mainly targets patients with severe heart failure or severe arrhythmias, following conventional treatment protocols for these conditions. For patients with complete atrioventricular block, temporary pacemakers may be used, and permanent pacemakers can be installed depending on the situation if the block cannot be resolved. Depending on the type of arrhythmia, antiarrhythmic medications like beta-blockers, amiodarone, and others may also be used. As each patient's cause of illness, severity, and physical constitution vary, it is essential to undergo personalized treatment under the guidance of a doctor.

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What are the symptoms of myocarditis?

The clinical manifestations of myocarditis in patients depend on the extent and location of the lesion. Mild cases may have no symptoms at all, while severe cases can even present with heart failure and shock. Most patients have precursor symptoms of viral infection one to three weeks before the onset, such as fever, general fatigue, and muscle soreness. Some patients have gastrointestinal symptoms like nausea and vomiting. Subsequently, they may experience palpitations, chest pain, breathing difficulties, edema, and even fainting or sudden death. The majority of clinically diagnosed myocarditis cases primarily present with or are primarily symptomatic of psychological frailty. A minority of patients may experience fainting or Aschner's syndrome as a result.

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Is myocarditis serious?

Myocarditis is an inflammatory disease of the myocardium, most commonly caused by viral infections. The onset of the disease can be either sudden or slow, and it is mostly self-limiting, but in rare cases can lead to acute pump failure or sudden death. The severity of the condition largely depends on the extent and location of the lesions. Mild cases may have no symptoms at all, while severe cases can lead to cardiogenic shock or even sudden death. In clinical diagnosis, the majority of myocarditis cases present primarily with arrhythmias, and in a minority of cases, the initial symptoms may include syncope or Adams-Stokes syndrome. Thus, the severity of myocarditis is related to the variation in the condition itself.