Identifying infarction In LBBB and Ventricular Paced Rhythms Flashcards
1
Q
Modified Sgarbossa criteria (MSC)
A
Found to have 91% sensitivity and 90% specificity for identifying STEMI in LBBB/paced rhythms.
Criteria:
- Concordant ST elevation > 1mm in leads with a positive QRS complex (Score 5)
- Concordance ST depression > 1mm in V1-V3
- Proportionally Excessive Discordant ST elevation in one or more Lead anywhere with 1 or more (1mm) of ST elevation, as defined by greater than/equal too 25% of the depth of the preceding S wave.
