风湿热既往是临床常见的疾病之一。目前风湿热的发病率已有显著的下降 ,临床表现也大多为不典型。为提高对风湿热心脏炎诊断的重视。本文报告 5例以孤立的不同程度的房室传导阻滞为主要临床表现 ,且临床误诊为病毒性心肌炎或漏诊的风湿热成人患者。例 1　男 ,42岁。间隙性发热 Rheumatic fever in the past is one of the common clinical diseases. The incidence of rheumatic fever has dropped significantly, most of the clinical manifestations are not typical. In order to improve the diagnosis of rheumatic fever heart disease attention. This article reports 5 cases of varying degrees of isolated atrioventricular block as the main clinical manifestations, and clinical misdiagnosis as viral myocarditis or missed diagnosis of rheumatic fever in adults. Example 1 male, 42 years old. Gap fever