I. What is dilated cardiomyopathy? Dilated cardiomyopathy (DCM) is a heart disease in which one or both chambers of the heart are enlarged and accompanied by myocardial hypertrophy and reduced systolic ejection of blood. The cause of the disease is not clear. It has a high incidence and a slow onset, and can develop at any age, but is more common between 30 and 50 years of age. The disease is progressive and death can occur at any stage of the disease. What are the main clinical manifestations? Progressive heart failure, arrhythmia, thromboembolism and even sudden death are the basic features, which can be seen at any stage of the disease. The common ones are shortness of breath after activity, palpitation, chest tightness, weakness, nocturnal paroxysmal dyspnea, swelling, and hepatosplenomegaly. So far there is no specific treatment method, and the prognosis is very poor, with a 5-year survival rate of less than 50%. Third, can dilated cardiomyopathy be cured? With the improvement of treatment, the life of patients can be prolonged, but due to the incurability, most patients survive with the disease. How to treat dilated cardiomyopathy? 1.Conventional medical treatment: mainly symptomatic treatment. That is, to correct heart failure, anti-arrhythmia, etc. 2. Cardiac pacing therapy: For DCM patients with slow arrhythmias, especially those with combined malignant arrhythmias for which drug therapy is ineffective, biventricular pacing and buried pacing-defibrillator (CRTD) pacemakers can be installed. For patients with complete left bundle branch block but not slow heartbeat, biventricular pacemaker (CRT) or CRTD can be installed. 3. Surgical treatment: If the patient is young and has no other systemic diseases, heart transplantation can be performed to prolong life. V. What are the dietary restrictions for dilated cardiomyopathy? Limit sodium intake, increase vitamin, protein and trace elements intake, avoid smoking and alcohol. Eat less and more meals to avoid inducing heart failure by overfeeding. Six, with dilated cardiomyopathy how to activities? 1, activities do not appear fatigue, dyspnea or chest tightness as the limit, should avoid competitive sports, avoid holding weight or breath, to reduce the occurrence of sudden death. 2, with cardiac insufficiency, more bed rest, avoid exertion. 3, try to maintain the previous habits of life, such as diet, sleep, excretion, etc., to maintain a good mental state. 4. Pay attention to weather changes, add or remove clothes at any time to prevent respiratory tract infection caused by cold and induced heart failure.