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Myocarditis
How is myocarditis cured?
Myocarditis often has a self-limiting course, and viral infection is a common cause of myocarditis. Currently, there is no specific treatment for viral myocarditis. Treatments are divided into two main categories: general treatment, primarily consisting of rest. Generally, patients should rest in bed for more than three months, while also paying attention to their diet by eating easily digestible foods rich in vitamins and proteins. The second category is drug treatment, which mainly supports heart function. In cases of heart failure, diuretics, vasodilators, and ACE inhibitors should be administered. For arrhythmias, anti-arrhythmic treatment is necessary. If viral myocarditis is confirmed, antiviral treatment should be given. Additionally, drugs that enhance myocardial metabolism, such as cyclic adenosine monophosphate, coenzyme A, or adenosine triphosphate, should also be used. (Specific medication use should be conducted under the guidance of a doctor.)
Is myocarditis contagious?
Many people often ask if my myocarditis is contagious. Actually, myocarditis is a focal inflammatory lesion of the myocardium or a diffuse inflammatory disease of the entire myocardium. It is an inflammatory disease of the myocardium. Based on the cause, we classify it into infectious and non-infectious types. The infectious type is mostly caused by viruses, such as Coxsackievirus B, or by bacteria, while non-infectious type is caused by allergies. Generally, they are not contagious.
Difference between myocarditis and myocardial injury
Myocarditis is inflammation of the myocardial cells caused by a virus that has not been timely cleared following a respiratory or gastrointestinal viral infection. It is a term used for disease diagnosis. Myocardial injury, on the other hand, refers to the necrosis of myocardial cells due to various factors, including viral myocarditis and myocardial ischemia caused by the narrowing of coronary arteries. Therefore, myocardial injury is a state diagnosis, not a term used for disease diagnosis. Myocardial injury usually leads to elevated levels of troponin.
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.
Criteria for Diagnosing Myocarditis
The diagnosis of myocarditis is primarily clinical, based on typical precursor symptoms, corresponding clinical manifestations, and physical signs. The precursor symptoms usually occur one to three weeks before the onset, including symptoms of a viral infection such as fever, general fatigue, and muscle soreness, or gastrointestinal symptoms like nausea and vomiting. Subsequently, symptoms such as chest tightness, palpitations, difficulty breathing, and even fainting and sudden death may occur. The physical signs generally include arrhythmias, commonly premature atrial contractions, premature ventricular contractions, or conduction blocks. There may be an increased heart rate which does not correspond to the body temperature, and there could be the presence of second or third heart sounds or gallop rhythm. A minority of patients may show signs of heart failure. Tests can include electrocardiograms, enzymatic studies, or echocardiograms, and magnetic resonance imaging may show symptoms of myocardial injury. To confirm the diagnosis, an endomyocardial biopsy must be performed.