STEMI in LBBB/paced rhythm
Concordant ST ↑ ≥1 mm (any lead)
Concordant ST ↓ ≥1 mm in V1–V3
Discordant ST ↑ ≥5 mm
Sgarbossa Criteria
0
Score <3: STEMI not confirmed (consider modified Smith rule)
Clinical Decisions in Seconds
