Table 2

Activation Timing by Tachycardia Location

Mapping SiteHigh CTMid-CTLow CTRPVTA
High CT (bipole 1,2)−32 ± 194.8 ± 12.518.5 ± 9.222 ± 414 ± 19
Mid-CT (bipole 9,10)−9 ± 13−30 ± 20−17 ± 722 ± 5−15 ± 18
Low CT (bipole 19,20)19 ± 1314 ± 10−47 ± 824 ± 7−30 ± 26
High posteroseptal−15 ± 202 ± 2722 ± 12−12 ± 8NA
HBE19 ± 3030 ± 3725 ± 1433 ± 1758 ± 17
CS os (bipole 9,10)51 ± 1846 ± 28−2 ± 248 ± 2822 ± 33
CS distal (bipole 1,2)77 ± 3084 ± 3753 ± 3577 ± 2470 ± 45

HBE = His bundle electrogram; RPV = right pulmonary vein; other abbreviations as in Table 1. Numbers in italics indicate site of earliest activation.