Conde Diego, Baranchuk Adrián
Cardiology Division, Instituto Cardiovascular de Buenos Aires, Buenos Aires, Argentina.
Cardiology Division, Kingston General Hospital, Queen' University, Kingston, Ontario, Canada.
Arch Cardiol Mex. 2014 Jan-Mar;84(1):32-40. doi: 10.1016/j.acmx.2013.10.004. Epub 2014 Feb 13.
In this article we aimed to establish that interatrial block exists as an anatomical-electrical entity, which should be considered a true block. Interatrial block presents with different degrees as other blocks in the conduction system. It shows a correlation with the left atrium size, however, it can be seen in patients with normal atrial size too. Interatrial block is strongly associated with atrial arrhythmias and it could be considered a predictor of cardioembolic stroke. Interatrial block is an expression of atrial electrical remodeling and dysfunction. IAB can be transient and in certain clinical circumstances, may be reversible. The contribution of endocardial mapping has increased our knowledge of the anatomy and pathophysiology of interatrial block. Magnetocardiography could be a possible non-invasive procedure to further investigate this entity. The interatrial block classification should include first, second and third degree or alternatively, in order to simplify the terminology: partial or advanced. The P wave morphology should always be taking into consideration when diagnosing this condition. Finally, without the initial description of interatrial block made by Dr. Bayés de Luna, it would be impossible to understand interatrial block as an anatomical and electrical substrate for atrial arrhythmias. It is our opinion that this represents a major contribution to the knowledge of electrocardiography and electrophysiology, and makes commendable that this arrhythmic syndrome should be called «Bayés' syndrome»
在本文中，我们旨在证实房间阻滞作为一种解剖 - 电生理实体存在，应被视为一种真正的阻滞。房间阻滞与传导系统中的其他阻滞一样，存在不同程度。它与左心房大小相关，然而，在心房大小正常的患者中也可见到。房间阻滞与房性心律失常密切相关，可被视为心源性栓塞性卒中的一个预测指标。房间阻滞是心房电重构和功能障碍的一种表现。间歇性心房阻滞（IAB）可能是短暂的，在某些临床情况下可能是可逆的。心内膜标测的贡献增加了我们对房间阻滞解剖学和病理生理学的认识。磁心动图可能是进一步研究该实体的一种可能的非侵入性方法。房间阻滞的分类应包括一度、二度和三度，或者为了简化术语：部分性或完全性。诊断这种情况时应始终考虑P波形态。最后，如果没有Bayés de Luna博士对房间阻滞的最初描述，就不可能将房间阻滞理解为房性心律失常的解剖和电生理基础。我们认为，这是对心电图学和电生理学知识的一项重大贡献，并且值得称赞的是，这种心律失常综合征应被称为“Bayés综合征”
