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Table 4 Electrocardiographic characteristics of VAs among the three approach groups

From: Approach selection of radiofrequency catheter ablation for ventricular arrhythmias originating from the left ventricular summit: potential relevance of Pseudo Delta wave, Intrinsicoid deflection time, maximal deflection index

Group

12-lead surface ECG

Transition

Transitional zone index

I

II/III/aVF

V1

V2-V3

V4-V6

Zone

<0, n (%)

TA

Rs, rS or rs

R

R or Rs

or r

R or Rs

R

<V1

22 (100)

TS

rS or rs, r

R

R or Rs

or qR or

rsR or rs

R or Rs

R

≤V1

10 (100)

TGCV

rS

R

R or Rs

R or Rs

R

<V1

13 (100)

  1. TA Transaortic group, TS Transseptal group, TGCV Trans-DGCV group