Dilated cardiomyopathy is the main characteristics of unilateral or bilateral heart enlargement, pump myocardial systolic dysfunction, have congestive heart failure, used to be known as congestive cardiomyopathy. Heart failure, arrhythmias, embolization is the expansion of the three common complications of heart disease, high mortality, men more than women (2.5: 1), the incidence rate of 5-10/10 million. Cause Dilated cardiomyopathy may be certain factors and the virus. Metabolic disorder caused by bacterial poisoning of myocardial damage. Viral myocarditis which is considered the main reason. Pathological Expansion to the main cavity, visible to the naked eye ventricular expansion, multi-wall thinning, fiber scar formation and are accompanied by wall thrombosis. Valve, coronary have no change. Organization of non-specific myocardial hypertrophy, degeneration, in particular the different levels of fibrosis and other diseases mixed there. Clinical performance [Symptoms] Slow onset, the more obvious clinical symptoms when treated if short breath, or even Duanzuo breathing, swollen liver and large congestive heart failure signs and symptoms, to diagnosis, some patients may occur embolism and sudden death. Expanding common congenital heart disease left heart failure performance: Early Changbiaoxianwei after shortness of breath or fatigue, weakness, palpitations, to the late development, performance for the rest, shortness of breath, fatigue, even at night can not sits flat, we must raise the pillow. Shuangfei can hear the sound-and wet, with cough, acute pulmonary edema, cough pink bubble-like sputum. Right heart failure common performance: general for the cycle of the performance of congestion, such as lower limb edema, pleural effusion, ascites, abdominal distention, poor appetite. [Signs] Signs for the major expansion of the heart, general and heart murmur could be heard, 75% of cases could be heard was the third or fourth heart sound Benma law, usually combined with various types of arrhythmia. Check ECG: This shows that a variety of cardiac abnormalities such as atrial fibrillation, block, and other arrhythmias. ST-T changes, Q-wave rare. Diagnosis This lack of specificity of diagnosis, clinical heart to see increased, arrhythmia and congestive heart failure patients, such as echocardiography confirmed that want to expand cavity filled with the heart throb of weakening, which should consider the disease May be, but it should be clear except for the quality of the various causes of heart disease, such as acute viral myocarditis, rheumatic heart disease, coronary heart disease, congenital heart disease and various secondary cardiomyopathy, and so will not be allowed to establish the diagnosis . Treatment and prognosis Ranging from the length of the course, congestive heart failure in the higher frequency, poor prognosis. The cause of death for many heart failure and serious arrhythmias. General symptoms that appear in a five-year survival rate of 40%, 10-year survival rate at 22 percent. Due to unknown reasons the disease, there is no special treatment. Principle is against the current treatment of congestive heart failure and all kinds of arrhythmia. General is to limit physical activity, low-salt diet, application of digitalis and diuretics. However, the disease occurred more digitalis poisoning and should therefore be anti.