心肌炎是指心肌有局限或弥漫性急性、亚急性或慢性炎性病变。心肌炎临床表现取决于心肌病变的广泛程度与部位 ,重者可致猝死 ,而轻度心肌炎的临床表现较少 ,诊断困难。近年来 ,由于对心肌炎病原学的进一步了解和诊断方法的改进 ,心肌炎已成为常见的心脏病之一 ,日益受到人们重 Myocarditis refers to myocardial limitations or diffuse acute, subacute or chronic inflammatory lesions. Myocarditis clinical manifestations depend on the extent and location of myocardial lesions, severe cases can cause sudden death, and less clinical manifestations of mild myocarditis, the diagnosis difficult. In recent years, myocarditis has become one of the common heart diseases due to the further understanding of the etiology of myocarditis and the improvement of diagnostic methods,