病毒性心肌炎是由于病毒侵入心肌细胞内,直接损害心肌,或由于病毒毒素影响引起心肌病变。约有1/3—1/2患儿在心肌炎症状出现前数日,有感冒或肠胃炎症状,尔后出现心肌炎表现,如精神萎靡、面色苍白、乏力、多汗、食 Viral myocarditis is due to the virus invades cardiomyocytes, directly injuring the myocardium, or as a result of viral toxin-induced cardiomyopathy. About 1 / 3-1 / 2 children in the myocarditis symptoms a few days before the onset of symptoms of cold or gastroenteritis, and later showed signs of myocarditis, such as apathetic, pale, weak, sweating, food