Nakamura K, Suzuki S, Sakakibara S, Komatsu Y, Takahashi S, Hirosawa K
Jpn Heart J. 1980 Nov;21(6):897-902. doi: 10.1536/ihj.21.897.
In a patient with patent ductus arteriosus, a pulmonary regurgitant murmur developed after the treatment of endocarditis. M-mode echocardiograms showed abnormal echo mass, characterized by fine diastolic fluttering, in the right ventricular outflow tract during diastole which were continuous with anterior pulmonary leaflet and thick pedunculated lesions attached to the anterior pulmonary leaflet were seen to be moving freely by cross-sectional echocardiography. At autopsy the destruction of the pulmonary valve was confirmed. This study suggests that diagnosis of flail pulmonary valve is feasible by M-mode and cross-sectional echocardiography.
在一名患有动脉导管未闭的患者中，心内膜炎治疗后出现了肺动脉反流杂音。M型超声心动图显示舒张期右心室流出道有异常回声团，其特征为细微的舒张期扑动，与肺动脉前叶连续，经横断面超声心动图可见附着于肺动脉前叶的粗大带蒂病变自由移动。尸检证实了肺动脉瓣的破坏。本研究提示，通过M型和横断面超声心动图诊断连枷样肺动脉瓣是可行的。
