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*# |