STEMI in LBBB + Ventricular Paced Rhythms

Question 1

What is the name of the scoring system you would use when presented with a patient with a LBBB or Ventricular Paced Rhythm, in the presence of clinical symptoms of a STEMI

Answer 1

Modified Sgarbossa Criteria

Question 2

Name the First point of the Modified Sgarbossa Criteria.

Answer 2

There is a high chance of STEMI in pts with a LBBB or pacemaker if their ECG shows:
1. Concordant ST elevation >1mm in leads with positive QRS

Question 3

Name the Second point of the Modified Sgarbossa Criteria.

Answer 3

There is a high chance of STEMI in pts with a LBBB or pacemaker if their ECG shows:
2. Concordant ST depression >1mm in V1-V3

Question 4

Name the Third point of the Modified Sgarbossa Criteria.

Answer 4

There is a high chance of STEMI in pts with a LBBB or pacemaker if their ECG shows:
3. Proportionally excessive discordant ST elevation in one or more leads, must be >25% of the depth of the preceding S wave