患儿女性,10岁,因一个月前患猩红热,继而不规则高烧月余,伴心悸、咳嗽急诊入院。既往做过扁桃体摘除术,有心脏病史。超声心动图诊为:二尖瓣脱垂。入院后经全面检查诊为:二尖瓣脱垂综合征,合并细菌性心内膜炎。经对症治疗45天,症状好转出院。患儿女性,13岁,与前患儿为亲姐妹,既往亦有 Children with children, 10 years old, suffering from scarlet fever a month ago, followed by irregular high fever more than a month, with heart palpitations, cough emergency admission. Past history tonsillectomy, history of heart disease. Echocardiography as: mitral valve prolapse. After admission, a comprehensive examination for diagnosis: mitral valve prolapse syndrome, combined with bacterial endocarditis. After symptomatic treatment for 45 days, the symptoms improved and discharged. Children with children, 13 years old, with the former children as their sisters, as ever