sgarbossa_criteria: Sgarbossa's Criteria for MI in Left Bundle Branch Block
In cliot: Clinical Indices and Outcomes Tools

sgarbossa_criteria

R Documentation

Sgarbossa's Criteria for MI in Left Bundle Branch Block

Description

Calculates the Sgarbossa Score to diagnose Acute Myocardial Infarction (AMI) in the presence of Left Bundle Branch Block (LBBB) or a paced rhythm. A total score of 3 or greater is reported to have high specificity for diagnosing AMI.

Usage

sgarbossa_criteria(concordant_ste_gt_1mm, concordant_std_v1_v3,
                   discordant_ste_gt_5mm)

Arguments

`concordant_ste_gt_1mm`	Numeric (0 or 1). ST-segment elevation >= 1 mm concordant with the QRS complex in any lead. (1 = Yes, +5 points).
`concordant_std_v1_v3`	Numeric (0 or 1). ST-segment depression >= 1 mm in lead V1, V2, or V3. (1 = Yes, +3 points).
`discordant_ste_gt_5mm`	Numeric (0 or 1). ST-segment elevation >= 5 mm discordant with the QRS complex (Original criterion). (1 = Yes, +2 points).

Value

A list containing:

`Sgarbossa_Score`	The calculated score (Range 0-10).
`Result`	Interpretation of the score regarding the likelihood of AMI.

References

Sgarbossa EB, Pinski SL, Barbagelata A, et al. Electrocardiographic diagnosis of evolving acute myocardial infarction in the presence of left bundle-branch block. GUSTO-1 (Global Utilization of Streptokinase and Tissue Plasminogen Activator for Occluded Coronary Arteries) Investigators. N Engl J Med. 1996;334(8):481-487. doi:10.1056/NEJM199602223340801

Examples


# Example 1: Positive for AMI
# Concordant STE (5 pts)
sgarbossa_criteria(1, 0, 0)

# Example 2: Negative
# Only Discordant STE > 5mm (2 pts)
sgarbossa_criteria(0, 0, 1)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.