Masaki Takeshi, Nishino Masami, Taniike Masayuki, Makino Nobuhiko, Kato Hiroyasu, Egami Yasuyuki, Shutta Ryu, Yamaguchi Hitoshi, Tanouchi Jun, Yamada Yoshio
Division of Cardiology, Osaka Rosai Hospital, 1179-3 Nagasone-cho, Sakai, Osaka, 591-8025, Japan.
J Echocardiogr. 2010 Dec;8(4):118-20. doi: 10.1007/s12574-010-0039-8. Epub 2010 Apr 20.
Quadricuspid aortic valve (QAV) is a rare congenital aortic valve anomaly. We present two cases of QAV diagnosed by using echocardiography including transesophageal echocardiography (TEE) and cardiac computed tomography (CT). The first case, QAV with four equal-sized cusps, was identified in a 58-year-old man. The second case, QAV with a small accessory cusp between the right coronary and non-coronary cusp, was identified in a 42-year-old man. TEE and cardiac CT could lead to accurate diagnosis of QAV. QAV in these two patients could be diagnosed before indication for surgery but it is necessary to continue careful follow-up.
四叶式主动脉瓣（QAV）是一种罕见的先天性主动脉瓣异常。我们报告两例通过超声心动图（包括经食管超声心动图[TEE]）和心脏计算机断层扫描（CT）诊断的QAV病例。第一例为一名58岁男性，其QAV有四个大小相等的瓣叶。第二例为一名42岁男性，其QAV在右冠状动脉瓣叶和无冠状动脉瓣叶之间有一个小的副瓣叶。TEE和心脏CT能够准确诊断QAV。这两名患者的QAV在手术指征出现之前就得以诊断，但仍有必要继续进行仔细的随访。
