27 results
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
big R or R/S>I STEMI ... have no pain - LAD ... avR - proximal LAD ... in V1, unless LBBB ... electrocardiogram #cardiology #STEMI
Ventricular Tachycardia in Wide Complex Tachycardia - Telemetry Diagnosis
 • Lead V1 - LBBB Criteria
 •
Diagnosis • Lead ... V1 - LBBB Criteria ... • Lead V1 - RBBB ... aVR - Vereckie Algorithm ... #Algorithm #
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
Criteria - Suspect STEMI ... a) Concordant STE ... > 1 mm in any lead ... V1-V3 c) STE ... wave > 25% in any lead
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 ... RAD [PHB RVH ... Elevation AcutE STEMI ... Nonconducted APC #LAD ... #LBBB #IVED #WPW
Inpatient Cath Lab Indications
Cath Lab ASAP:
STEMI
NSTEMI:
1. Unstable/cardiogenic shock
2. Severe LV dysfunction or
3. Recurrent/persistent rest angina despite
Inpatient Cath Lab ... Indications Cath Lab ... ASAP: STEMI NSTEMI ... -7) risk Cath lab ... /UA: stable, TIMI
Here’s an ECG of a patient with 100% Acute LAD Occlusion

Remember that RBBB normally has ST
with 100% Acute LAD ... Remember that RBBB ... STEMI Criteria misses ... @EM_RESUS #LAD
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
Hordeolum (Stye ... eyelashes on the upper lid ... Ophthalmology #Hordeolum #Stye ... Chalazion #Comparison #Table
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
Brugada 1 - Coved STE ... HOCM- dagger Q lat ... inf leads, LVH, LAE ... Trifascicular block - RBBB ... (<360ms) PE: RBBB
Modified Sgarbossa Criteria for diagnosing STEMI in the presence of a LBBB If there is concordant
for diagnosing STEMI ... presence of a LBBB ... A: Concordant STE ... ≥ 1mm (in any lead ... Modified #Criteria #LBBB
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
Absence of typical RBBB ... or LBBB morphology ... Brugada algorithm ... 100 ms in any V lead