Relative to 21 untreated comparison fetuses, subsequent prenatal growth of the aortic and mitral valves, but not the left ventricle, was improved after intervention. 和21例未治疗的胎儿相比，治疗后的主动脉瓣和二尖瓣在出生前的生长得到改善，而左心室无此表现。
Luciano Campos Killinger,Paulo Sampaio Gutierrez.Heart failure and insufficiency of the aortic and mitral valves in a 68-year-old woman with rheumatoid arthritis.Arq Bras Cardiol 2001;77:373-6. 侯跃双何亚乐冯碧霞等类风湿性关节炎侵犯心脏瓣膜病的超声表现及意义影像诊断与介入放射学1998年第7卷第4期.
Objective To evaluate the clinical effects of mitral valve replacement with preservation of subvalvular apparatus in cardiopulmonary bypass without aortic cross-clamping. 摘要目的评价体外循环下不阻断升主动脉保留瓣下结构的二尖瓣替换术的临床效果。
The left ventricle and mitral valves were normal. 左心室形态及结构正常。
Methods: Durang Dob was infused, the 2DE images and the blood flow of aorta valve and mitral valve were recorded. 方法：多巴酚丁胺（Dob）连续静脉注射的同时，应用二维超声心动图（2DE）及脉冲多普勒超声心动图 PDE）观察MI区域内室壁运动有无改善及主动脉瓣口、二尖瓣口血流动力学指标。