Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, 3-39-22 Showa, Maebashi, Gunma, Japan.
Cardiol J. 2011;18(4):450-3.
We report a case of typical counterclockwise atrial flutter (AFL) with conduction block from right to left atrium along the coronary sinus (CS) musculature, confirmed by discontinuous CS activation sequence during pacing near the ostium and differential right atrial pacing. AFL was associated with an atypical flutter wave morphology, due to the detour of the activation wavefront from right to left atrium via alternate interatrial electrical connections, such as Bachmann's bundle, the interatrial septum, or both.
我们报告了一例典型的逆时针心房扑动（AFL），其在冠状窦（CS）肌部从右心房到左心房的传导阻滞，通过在口附近起搏时不连续的 CS 激活序列和不同的右心房起搏得到证实。AFL 与非典型的扑动波形态有关，这是由于激活波前从右心房到左心房的绕道，通过替代的房间隔电连接，如 Bachmann 束、房间隔或两者。
