Table 7.

The cut-off values to identify PVCs/IVTs from posterolateral free wall of the TA

Leads	Cut-off values*	Sensitivity(%)	Specificity(%)
r(R)II	0.200 mv	100	100
s(S)II	−0.250 mv	100	100
r(R)III	0.150 mv	100	100
s(S)III	−0.975 mv	85.7	100
r(R)aVF	0.175 mv	100	100
s(S)aVF	−0.625 mv	100	100

*≦Cut-Off vaules for the r(R) or s(S) wave amplitude in inferior leads in patients with PVCs/IVTs arising from posterolateral free wall of the TA.