Cardiology

Sgarbossa Criteria

Diagnosing MI in left bundle branch block.

Education and reference only. Not a substitute for clinical judgement, local policy or product labelling. Always verify before clinical use. Values are calculated in your browser and never stored.

When to use

Use in a patient with LBBB (or paced rhythm) and suspected acute MI; a score ≥3 is specific for acute MI.

Why use

It helps detect MI where the usual ST criteria are obscured by LBBB.

Advice

A score ≥3 is specific (but not sensitive) for acute MI in LBBB. The modified Smith-Sgarbossa criteria improve sensitivity.

Evidence & references

  1. Sgarbossa EB et al. Electrocardiographic diagnosis of evolving acute MI in the presence of LBBB. NEJM. 1996.

About the creator

Sgarbossa EB et al.

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