患儿女，10岁，自幼剧烈活动后有心悸气短，一个月前因感冒发烧长时间未愈去医院检查发现心脏有杂音介绍来院，门诊诊断为动脉导管未闭收入院。检查：营养中等发育较差，体温37℃，血压17．5／4KPa，两肺无音，心前区异常隆起，胸骨左缘2、3肋间可触及震颤，可闻及两期性连续性 Children with children, 10 years old, have had a heart attack and shortness of breath after intense activity at their young age. One month ago, they had a fever for a long time and went to hospital for a medical examination. They found that there were murmurs in the heart and they came to the hospital. The outpatient diagnosis was a patent ductus arteriosus. Examination: Poor nutrition development, body temperature 37 °C, blood pressure 17.5/4KPa, no sound in both lungs, abnormal uplift of precordial area, sternal left sternal borders 2, 3 intercostal tremors, audible and two-stage continuity