Definition of the stimulus to left ventricular activation time (Sti-LVAT)

WL Wenhua Li
YD Yu Ding
CG Chao Gong
GZ Genqing Zhou
XL Xiaofeng Lu
YW Yong Wei
SP Shi Peng
LC Lidong Cai
TY Tianyou Yuan
FL Fangfang Li
SL Shaowen Liu
SC Songwen Chen
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Here, LVAT indicates the rapidity of left ventricular free wall activation. The short LVAT (< 80 ms) suggested capture of the conduction system. We defined the Sti-LVAT of the LBBAP or RVSP as the duration from the stimulus artifact to the peak of the R wave and the Sti-LVAT of the RVAP as the duration from the stimulus artifact to the trough of the R wave in lead V5/6 (Fig. 2A, B, C).

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