Bezgin Tahir, Elveran Ali, Karagöz Ali, Çanga Yiğit, Yılmaz Fatih
Department of Cardiology, Kartal Koşuyolu Heart Training and Research Hospital, İstanbul, Turkey.
Department of Cardiology, Kartal Yavuz Selim State Hospital, İstanbul, Turkey.
Turk Kardiyol Dern Ars. 2014 Jan;42(1):80-2. doi: 10.5543/tkda.2014.44380.
Congenital anomalies of the mitral valve apparatus are rare. Of such cases, congenital mitral stenosis, atresia, accessory valvular tissue, and cleft mitral valve are more common. Descriptions of unileaflet mitral valves (either partial or complete leaflet agenesis/hypoplasia) are extremely rare and largely limited to a few case reports. We report herein a 45-year-old nulliparous woman presenting to our outpatient clinic with chest discomfort and dyspnea on minimal exertion. Mitral valve with a single leaflet leading to a significant obstruction in left ventricular outflow was seen on transthoracic echocardiography and confirmed with transesophageal two- (2D) and three-dimensional (3D) echocardiography. Metoprolol was prescribed to relieve obstruction and symptoms.
二尖瓣装置的先天性异常较为罕见。在这类病例中，先天性二尖瓣狭窄、闭锁、瓣膜附属组织以及二尖瓣裂更为常见。关于单叶二尖瓣（部分或完全瓣叶发育不全/发育不良）的描述极为罕见，且大多局限于少数病例报告。我们在此报告一名45岁未育女性，因轻微活动时出现胸部不适和呼吸困难前来我院门诊就诊。经胸超声心动图显示二尖瓣为单叶，导致左心室流出道明显梗阻，经食管二维（2D）和三维（3D）超声心动图得以证实。给予美托洛尔以缓解梗阻和症状。
