EpistemisModified Sgarbossa criteria (infarction with left bundle branch block)
A left bundle branch block or a pacemaker rhythm deforms the ST and hides the infarction. These criteria rescue acute coronary occlusion: a positive one is enough to activate the infarction code.
Required inputs
| Variable | Example value |
|---|---|
| Concordant ST elevation of 1 mm or more in any lead | — |
| Concordant ST depression of 1 mm or more in V1, V2 or V3 | — |
| Discordant ST elevation (mm), in the lead with the greatest disproportion | 2 |
| Depth of the S wave in that same lead (mm) | 10 |
Run the calculation in the app
This page explains the score but does not run it. In Epistemis, the calculator validates units, flags values outside physiological ranges, and provides the interpretation that a number alone cannot convey.
Epistemis is educational review material. It is not a medical device, does not diagnose or prescribe treatment, and does not replace formal medical training, current clinical guidelines, or professional clinical judgment.
- Specialty
- Cardiology
- Area
- Internal Medicine
- Variables
- 4