11 results
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
Modified Sgarbossa ... Discordance" = ST ... Criteria - Suspect STEMI ... electrocardiogram #ecg ... #cardiology #lbbb
Modified Sgarbossa Criteria for diagnosing STEMI in the presence of a LBBB If there is concordant
for diagnosing STEMI ... is concordant ST ... changes (ST segments ... or a discordant ST ... S #Diagnosis #Cardiology
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
0.5mm downgoing ST ... line; upsloping ST ... vessel disease - ST ... - R/S >1 or ST ... in V1, unless LBBB
Here’s an ECG of a patient with 100% Acute LAD Occlusion

Remember that RBBB normally has ST
normally has ST ... So ANY ST Elevation ... an isolectric ST ... STEMI Criteria misses ... #Clinical #Cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
on ECG • Conventional ... Sgarbossa criterion 3 (modified ... #Equivalents #ECG ... #differential # ... cardiology #electrocardiogram
Differential Diagnosis for ST Segment Elevations
 - ACUTE STEMI 
 - PULMONARY EMBOLISM 
 - LBBB
Differential Diagnosis ... for ST Segment ... EMBOLISM - LBBB ... #Differential # ... Diagnosis #Cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Elevation - Differential ... Diagnosis Framework STEMI ... morphology similar to LBBB ... #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Owing to the morbidity and need for urgent treatment, STEMI is the default diagnosis is patients
urgent treatment, STEMI ... patients with ST ... : #Diagnosis #Cardiology ... #EKG #ECG #STElevation ... #STSegment #Differential
Suspected ACS - OMI vs STEMI - Differential Algorithm

The name STEMI cognitively inspires EPs to fail
- Differential ... believe that the ST ... segment is the only ECG ... #Differential # ... Algorithm #cardiology
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
Approach to ECGs ... imitator" • ↓ K - ST ... long QT via long ST ... #diagnosis #cardiology ... electrocardiogram #differential