Appendix C. Electrocardiographic criteria of infarction and left bundle branch block

Sodi-Pallares et al.¹⁴

• Septal infarction: Q wave DI, aVL, V5 and V6

• Anteroseptal infarction: loss of QRS voltage with Q wave in V4, V5 and V6

• Left ventricular transmural infarction: RS or rs with negative T wave V4, V5 and V6

Sgarbossa et al.¹⁵

• ST elevation ≥1 mm concordant in leads with R wave or negative slope ≥ in V1–V3 in leads with S

• ST depression ≥1 mm in V1, V2 and V3

• ST elevation ≥5 mm discordant with QRS