Takagi Y, Takami Y, Ariki H, Ito T, Oomiya T, Miyata Y, Ishihara T, Taneda Y
Department of Cardiovascular Surgery, Nagoya Ekisaikai Hospital.
Kyobu Geka. 1992 Mar;45(3):267-70.
An 11-year-old boy with subaortic stenosis due to parashute accessory mitral valve tissue was treated successfully with surgery. He had a mild left ventricular-aortic pressure gradient associated with mild aortic regurgitation. The abnormal subaortic tissue was attached to the anterior leaflet of the mitral valve and was complicated with discrete subaortic stenosis. This tissue had five chordae connecting to the anterior papillary muscle and the anterior leaflet of the mitral valve. By resection of this accessory tissue and the part of the septal discrete stenotic tissue, stenosis of the left ventricular outflow tract was relieved completely.
一名11岁男孩因降落伞样二尖瓣附属组织导致主动脉瓣下狭窄，接受手术治疗成功。他存在轻度左心室-主动脉压力阶差，伴有轻度主动脉瓣反流。异常的主动脉瓣下组织附着于二尖瓣前叶，并合并有局限性主动脉瓣下狭窄。该组织有五条腱索连接至二尖瓣前乳头肌和前叶。通过切除该附属组织及部分室间隔局限性狭窄组织，左心室流出道狭窄得以完全解除。
