Table 2. VT score-criteria for the diagnosis of VT.

Criteria	ECG examples	Point
1. Initial R wave in V1	Criterion proposed by Sandler and Marriott.[11]	1
2. Initial r > 40 ms in V1 or V2	Criterion proposed by Swanick, et al.[12], and later validated by Kindwall, et al.[13]	1
3. Notched S in V1	Criterion proposed by Kindwall, et al.[13]	1
4. Initial R wave in aVR	Criterion proposed by Vereckei, et al.[8]	1
5. Lead II RWPT ≥ 50 ms	Criterion proposed by Pava, et al.[9]	1
6. Lack of RS complex in leads V1-V6	If the QRS complexes from V1-V6 have the following configurations --- > QS, R, qR, Qr, rSR′, Rsr′, this criterion is fulfilled. Criterion proposed by Brugada, et al.[5]	1
7. AV dissociation		2

With modifications from Jastrzebski, et al.[10] ECG figures reproduced with permission. RWPT: wave peak time; VT: ventricular tachycardia.