Mitral valve dysplasia characterized by isolated cleft of the anterior leaflet resulting in fixed left ventricular outflow tract obstruction

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• 作者：Cristiane Otoni ; DVM^a ; Jonathan A. Abbott ; DVM ; ^{abbottj@vt.edu}
• 关键词：Congenital ; Mitral valve ; Subvalvular aortic stenosis
• 刊名：Journal of Veterinary Cardiology
• 出版年：2012
• 出版时间：March, 2012
• 年：2012
• 卷：14
• 期：1
• 页码：301-305
• 全文大小：377 K

文摘

A 7-month-old, sexually intact male English toy spaniel weighing 4?kg was referred for evaluation of a subclinical cardiac murmur. Echocardiography disclosed fixed left ventricular outflow tract obstruction that was caused by attachment of a cleft anterior mitral valve leaflet to the interventricular septum. Neither atrial nor ventricular septal defects were detected. Fixed obstruction of the left ventricular outflow tract by a malformed mitral valve is rare in human beings and has not been previously reported in the dog.