Ozer Orhan, Sari Ibrahim, Davutoglu Vedat, Yigiter Remzi, Akkoyun Cayan
Department of Cardiology, Gaziantep University, School of Medicine, TR-27310 Gaziantep, Turkey.
Eur J Echocardiogr. 2009 Mar;10(2):360-1. doi: 10.1093/ejechocard/jen302. Epub 2008 Nov 13.
Congenital left atrial band (LAB) has been reported previously. However, clinical significance of the LAB has not been clearly defined. Although LAB is generally known as a benign entity, it has been reported to be associated with Chiari's network, patent foramen ovale, mitral valve prolapse, mitral regurgitation, and supraventricular arrhythmias. In this case report we report LAB in a 34-year-old male and 56-year-old female with cryptogenic stroke. To our knowledge, the association of LAB with cardioembolic events has not been reported previously. Lack of other potential risk factors of cardioembolic stroke and normal laboratory examinations lead us to suggest that LAB might be the cause of cardioembolism in the present two cases. In conclusion, in cases with ischaemic stroke, especially the ones with undetermined aetiology, LAB should be kept in mind as a potential cause of cardioembolism.
先天性左心房条带（LAB）此前已有报道。然而，LAB的临床意义尚未明确界定。尽管LAB通常被认为是一种良性病变，但据报道它与Chiari网、卵圆孔未闭、二尖瓣脱垂、二尖瓣反流及室上性心律失常有关。在本病例报告中，我们报告了一名34岁男性和一名56岁女性患有隐源性卒中，伴有LAB。据我们所知，LAB与心源性栓塞事件的关联此前尚未见报道。由于缺乏心源性栓塞性卒中的其他潜在危险因素且实验室检查结果正常，我们认为LAB可能是这两例患者心源性栓塞的原因。总之，在缺血性卒中病例中，尤其是病因未明的病例，应将LAB视为心源性栓塞的潜在原因。
