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Myocarditis
What to eat for myocarditis?
For patients who already have myocarditis, what should we feed them? This is a question that confuses many people. In fact, patients with myocarditis should eat high-protein foods, high-vitamin foods, and those that are low in calories or easy to digest, such as a low-salt diet. It is recommended to eat small meals frequently and avoid foods that are spicy, heavily flavored, or irritating. For high-vitamin foods, the main choices include fruits, some vegetables, bean sprouts, kelp, seaweed, and black fungus, all of which are very good options. Low-calorie foods such as cucumbers, tomatoes, celery, job's tears, and papaya are also good choices. High-protein foods include soybeans, peanuts, seaweed, mushrooms, nuts, milk, lean meats, eggs, fish, shrimp, and more. We also recommend easily digestible foods, like millet porridge and noodles, as well as a low-salt diet, recommending a daily salt intake of no more than 3 grams for patients with myocarditis.
Early manifestations of myocarditis
What are the early symptoms of myocarditis? In fact, most patients with myocarditis typically exhibit acute onset of symptoms, which generally occur 1 to 3 weeks after cardiac involvement, or they may simultaneously exhibit various degrees of viral infection symptoms such as fever, sore throat, cough, general malaise, muscle pain, skin rash, or nausea and vomiting, abdominal pain, and diarrhea. These are its prodromal symptoms. Additionally, some patients exhibit systemic viral infection symptoms when the disease occurs, such as rubella, measles, epidemic mumps, viral hepatitis, and other diseases. Since the recovery rate of myocarditis in the acute and recovery phases is significantly higher than in the lingering or chronic phases, it is evident that treatment for myocarditis should be initiated as early as possible to increase the recovery rate.
The dangers of myocarditis
Myocarditis is an inflammatory disease of the myocardium. Most cases of myocarditis are self-limiting, but if not treated promptly, it can progress to dilated cardiomyopathy. Dilated cardiomyopathy often begins insidiously. Once symptoms appear and the patient enters the stage of heart failure, the condition becomes very serious. Additionally, a minority of patients experience a fulminant onset, leading to acute decompensation or sudden death. Fulminant myocarditis and severe myocarditis progress quickly and have a high mortality rate, thus highlighting the dangers of myocarditis.
Causes of Myocarditis
Myocarditis is also an inflammatory disease of the myocardium. Common causes are viral infections, such as Coxsackievirus B, Parvovirus B19, Human Herpesvirus 6, and Poliovirus, with Coxsackievirus B being the most common cause, accounting for about 30%-50%. Bacteria, fungi, spirochetes, rickettsiae, and protozoa can also cause myocarditis, but they are relatively rare. Non-infectious causes of myocarditis include drugs, radiation, connective tissue diseases, vasculitis, giant cell myocarditis, among others. These are all causes of myocarditis.
Is myocarditis serious?
Is myocarditis serious? In fact, myocarditis is an inflammatory disease of the myocardium. Patients with myocarditis may experience symptoms such as fatigue, palpitations, shortness of breath, discomfort or pain in the precordial area, nausea, vomiting, abdominal pain, diarrhea, etc. During examinations, we often see slight enlargement of the heart, arrhythmias, gallop rhythm, and other manifestations of heart dysfunction. In severe cases, myocarditis can lead to fulminant myocarditis, such as severe heart failure or cardiogenic shock, often accompanied by arrhythmias. Even with timely and standard treatment, death may occur due to the severity of the condition. Even if patients with myocarditis recover, they may still have some sequelae on the electrocardiogram, such as atrioventricular block, bundle branch block, premature beats, or junctional rhythm.
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.
Does myocarditis cause a fever?
Myocarditis is an inflammatory heart disease, commonly caused by viral infections, with the Coxsackievirus being the most common. Other infections, such as bacterial, fungal, and Rickettsia, can also cause myocarditis. These infectious myocarditis cases generally show preliminary symptoms of infection, such as fever, in the 1 to 3 weeks before the onset of the disease. Fever indicates a high body temperature, which means the same as having a fever. However, there are also non-infectious forms of myocarditis, such as those caused by drugs, radiation, or connective tissue diseases, and these non-infectious types of myocarditis do not always involve a fever.
Manifestations of myocarditis
Myocarditis is an inflammatory disease of the myocardium. Its manifestations depend on the extent and location of the condition; mild cases may have no symptoms, while severe cases can lead to cardiogenic shock and sudden death. Most patients experience precursor symptoms of viral infection one to three weeks before onset, such as fever, general fatigue, and muscle soreness, or gastrointestinal symptoms like nausea and vomiting. Subsequently, they may experience palpitations, chest tightness, difficulty breathing, and potentially fainting or sudden death. Clinically diagnosed myocarditis is mostly due to arrhythmias as the primary complaint, or patients seek treatment for common symptoms.
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).
How is myocarditis detected?
The diagnosis of myocarditis includes several aspects: The electrocardiogram may show STT changes, or various arrhythmias. Chest radiography may reveal an enlarged cardiac silhouette, while an echocardiogram may be normal or show left ventricular enlargement. Magnetic resonance imaging may show myocardial edema or congestion. Biochemical examinations may reveal elevated levels of troponin and myocardial enzymes, as well as increased erythrocyte sedimentation rate and C-reactive protein. Additional diagnostic methods include etiological examinations, which can identify viral infections through blood or stool samples. Furthermore, endocarditis or myocardial biopsy can provide definitive diagnosis.