💡 Original Sgarbossa Criteria (1996) for diagnosing acute MI in presence of LBBB. Score ≥3 has good specificity.

Concordant ST elevation ≥1 mm in leads with positive QRS

Same direction as QRS complex

Concordant ST depression ≥ mm in V1-V3

Same direction as QRS complex

Discordant ST elevation ≥1 mm in leads with negative QRS

Opposite direction to QRS

Sgarbossa Score (0-10)

📊 Interpretation

📚 Evidence & Guidelines Class I Recommendation

★★★★★ (1996)

Citation: Sgarbossa EB, Pinski SL, Barbagelata A, et al. Electrocardiographic diagnosis of evolving acute myocardial infarction in the presence of left bundle-branch block. N Engl J Med. 1996;334(8):481-487.

Guideline: ACC/AHA STEMI Guidelines

📖 View on PubMed

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For AMI evaluation in LBBB. Use with clinical context and troponins.

🫀 Sgarbossa Criteria

📊 Interpretation