患者男,49岁。因反复活动后气短、乏力3个月,加重1个月来诊,既往体健,无手术史及外伤史,体温、血压、心律均正常,心电图示:窦性心律,完全性右束支传导阻滞,左房负荷过重。超声心动图:主动脉根部左冠窦上方可见连续性中断约0.7cm(图1),中断处可见少量分流血流信号;另于左室流出道内可见回声中断0.3cm,中断处可见微量 Male patient, 49 years old. Due to repeated shortness of breath, fatigue 3 months, increased 1 month to diagnose, previous physical health, no history of surgery and trauma history, body temperature, blood pressure, heart rate were normal, ECG: sinus rhythm, complete right bundle branch conduction Block, left atrial overload. Echocardiography: Aortic root left coronary sinus can be seen above the continuous discontinuation of about 0.7cm (Figure 1), a small amount of shunt at the blood flow signal can be seen; the other in the left ventricular outflow tract can be seen echoes interrupted 0.3cm, can be seen at the interruption of trace