25 results
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
Discordance" = ST ... Criteria - Suspect STEMI ... a) Concordant STE ... b) Concordant STD ... V1-V3 c) STE
Modified Sgarbossa Criteria for diagnosing STEMI in the presence of a LBBB If there is concordant
for diagnosing STEMI ... presence of a LBBB ... ≥ 1mm (in any lead ... B: Concordant STD ... Modified #Criteria #LBBB
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
- J point STE > ... 0.5mm downgoing ST ... have no pain - LAD ... avR - proximal LAD ... in V1, unless LBBB
LAD
IWMI
LAHB
RAD
[PHB
RVH
Lateral wall infarct
Lead reversal
Dextrocardia
Wide ORS
RBBB - terminal delay
[BBB
IVED
WPW = delta wave
Hyperkalemia
Type l antiarrhythmic drugs
Pacemaker
ST elevation
Early repolarization
LAD IWMI LAHB ... drugs Pacemaker ST ... repolarization Diffuse ST ... Elevation AcutE STEMI ... Brugada syndrome ST
ECG of a 55-year-old man who presented to the ER with chest pain 
Computer interpretation: “Nonspecific
: “Nonspecific ST ... STE in II, III, ... Reciprocal STD in ... STD in V2 (posterior ... Cardiology #EKG #STEMI
Here’s an ECG of a patient with 100% Acute LAD Occlusion

Remember that RBBB normally has ST
Remember that RBBB ... normally has ST ... So ANY ST Elevation ... an isolectric ST ... STEMI Criteria misses
Differential Diagnosis for ST Segment Elevations
 - ACUTE STEMI 
 - PULMONARY EMBOLISM 
 - LBBB
Diagnosis for ST ... Elevations - ACUTE STEMI ... EMBOLISM - LBBB ... #STElevation #STEMI
What are the original Sgarbossa Criteria?
- Concordant ST-segment elevation ≥ 1 mm in any lead =
- Concordant ST-segment ... ≥ 1 mm in any lead ... points - Concordant ST-segment ... points - Discordant ST-segment ... Sgarbossa #Criteria #LBBB
De Winter T Wave ECG Pattern 
STEMI Equivalent - Left anterior descending (LAD) occlusion 

1) Upsloping
ECG Pattern STEMI ... anterior descending (LAD ... 1) Upsloping ST ... (>= 1 mm) 2) ST
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Diagnosis Framework STEMI ... ventricle pacing lead ... morphology similar to LBBB ... #STEMI #Segment