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Table 4 The ECG characteristics of VAs arising from each PSC and its corresponding MSPA

From: Radiofrequency catheter ablation of ventricular arrhythmias arising from the region above pulmonary valve

 

Anterior PSC and corresponding MSPA (PAC-AMSPA, 38cases)

Left PSC and corresponding MSPA

(PLC-LMSPA, 50 cases)

Right PSC and corresponding MSPA

(PRC-RMSPA, 18 cases)

Lead I

QS、qs、rs、qr. or r pattern

rs or r pattern

R pattern

Lead II, III and aVF

R pattern, ascending limb notch or peak notch may be seen

R pattern, ascending limb notch or peak notch may be seen

R pattern, descending limb notch may be seen

Lead aVR and a VL

QS, QSaVL>QSaVR

QS, QSaVR>QSaVL

main QS, a minority of qs or qR, QSaVR>QSaVl

Lead V1-V2

rS or RS

rS or RS

rS or RS

Lead V3

rS, RS or Rs

rS, RS or Rs

rS

Lead V4

R or Rs

R or Rs

Rs or R

Lead V5-V6

R pattern, ascending limb notch or peak notch may be seen

R pattern, ascending limb notch or peak notch may be seen

R pattern, descending limb notch may be seen

R I (mV)

−0.12 ± 0.11#^

0.36 ± 0.13

0.41 ± 0.18

RII (mV)

1.92 ± 0.48

1.83 ± 0.38

1.45 ± 0.41*#

RIII (mV)

2.04 ± 0.49#^

1.52 ± 0.42*^

1.11 ± 0.39*#

RaVF (mV)

1.96 ± 0.47#^

1.67 ± 0.39*^

1.27 ± 0.41*#

RII + III + aVF (mV)

6.02 ± 1.45#^

5.13 ± 1.32*^

3.94 ± 1.01*#

QSaVR (mV)

−0.96 ± 0.22

−1.05 ± 0.36

− 0.92 ± 0.39

QSaVL (mV)

−1.07 ± 0.26#^

−0.61 ± 0.32*^

− 0.33 ± 0.28*#

QSaVR/aVL

0.89 ± 0.23#^

1.72 ± 1.32*^

2.79 ± 2.57*#

RV1(mV)

0.28 ± 0.13

0.32 ± 0.12

0.36 ± 0.22

RV2(mV)

0.35 ± 0.17

0.55 ± 0.22*^

0.42 ± 0.24

RV3(mV)

0.63 ± 0.31

0.89 ± 0.37*^

0.66 ± 0.33

RV4(mV)

1.28 ± 0.52

1.39 ± 0.51

0.99 ± 0.41*#

RV5(mV)

1.79 ± 0.53

1.68 ± 0.51

1.38 ± 0.54*#

RV6(mV)

1.72 ± 0.43

1.67 ± 0.53

1.36 ± 0.49*#

RV4 + V5 + V6(mV)

4.79 ± 1.32

4.74 ± 1.68

3.73 ± 0.82*#

  1. *Compared with PAC-AMSPA, p < 0.05
  2. #Compared with PLC-LMSPA, p < 0.05
  3. ^Compared with PRC-RMSPA, p < 0.05