Panduranga Prashanth, Al-Mukhaini Mohammed
Senior Specialist, Department of Adult Congenital Heart Disease, Royal Hospital, Muscat 111, Oman.
Indian Heart J. 2013 May-Jun;65(3):334-6. doi: 10.1016/j.ihj.2013.04.011. Epub 2013 Apr 10.
Accessory mitral valve tissue is commonly associated with other congenital heart diseases and is usually detected in children causing left ventricular outflow tract obstruction. We present an adult patient with isolated non-obstructive accessory mitral valve tissue that was mimicking ruptured chordae of the mitral valve. Accessory mitral valve tissue in adults is very rare and can mimick various causes of left ventricular outflow tract obstruction. This patient represents the first case in literature wherein an unobstructive accessory mitral valve tissue simulated a ruptured chordae. This case illustrates that in patients with suspected mitral valve chordae rupture without any mitral regurgitation, this diagnosis should be considered, which can have therapeutic implications.
二尖瓣附属组织通常与其他先天性心脏病相关，且常在儿童中被检测到，可导致左心室流出道梗阻。我们报告一例成年患者，其患有孤立性非梗阻性二尖瓣附属组织，该组织酷似二尖瓣腱索断裂。成年患者中的二尖瓣附属组织非常罕见，可酷似左心室流出道梗阻的各种病因。该患者是文献中首例无梗阻性二尖瓣附属组织模拟腱索断裂的病例。此病例表明，对于疑似二尖瓣腱索断裂但无任何二尖瓣反流的患者，应考虑这一诊断，这可能具有治疗意义。
