Ariyarajah Vignendra, Spodick David H
Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), Veterans Affairs Boston Healthcare System, Boston, MA 01655, USA.
J Electrocardiol. 2006 Apr;39(2):177-9. doi: 10.1016/j.jelectrocard.2005.08.016. Epub 2005 Nov 10.
Interatrial block (IAB), prolonged conduction between the atria, is denoted by P waves of 110 milliseconds or more and may manifest as partial or advanced. Theoretically, partial IAB may progress to its advanced counterpart if conduction delay increases to complete block. However, there have been no reports of such progression, and electrophysiologic studies have not shown this phenomenon. We briefly review the interatrial conducting pathways of IAB and present the first documentation of possible progression of partial to advanced IAB.
心房传导阻滞（IAB）是指心房之间传导时间延长，表现为P波时限达110毫秒或更长，可分为不完全性或完全性。理论上，如果传导延迟增加至完全阻滞，不完全性IAB可能进展为完全性IAB。然而，尚无此类进展的报道，电生理研究也未显示出这种现象。我们简要回顾IAB的心房传导途径，并首次记录了不完全性IAB可能进展为完全性IAB的情况。
