249 results
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
myocardial infarction: ST ... anterior descending (LAD ... • Multilead ST ... elevation: Differential ... diagnosis #ekg #differential
Here’s an ECG of a patient with 100% Acute LAD Occlusion

Remember that RBBB normally has ST
with 100% Acute LAD ... RBBB normally has ST ... So ANY ST Elevation ... an isolectric ST ... @EM_RESUS #LAD
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 ... ≥ 5 mm in any lead
De Winter T Wave ECG Pattern 
STEMI Equivalent - Left anterior descending (LAD) occlusion 

1) Upsloping
anterior descending (LAD ... 1) Upsloping ST ... (>= 1 mm) 2) ST
Sgarbossa Criteria A - Concordant ST segment elevation of >1m, in any lead | Sgarbossa Criteria
A - Concordant ST ... of >1m, in any lead ... B - Concordant ST ... Disconcordant ST ... of >5mm, in any lead
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
0.5mm downgoing ST ... line; upsloping ST ... have no pain - LAD ... avR - proximal LAD ... Interpretation #differential
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
imitator" • ↓ K - ST ... long QT via long ST ... HOCM- dagger Q lat ... inf leads, LVH, LAE ... electrocardiogram #differential
Causes of ST Elevation in ECG

#STElevation #STEMI #ECG #EKG #Electrocardiogram #Causes #Differential #ABCHELP #Mnemonic
Causes of ST Elevation ... Electrocardiogram #Causes #Differential
Stimulated
SA node
AV node -
Un-stimulated
#PQ
(mV) 0
ECG (lead II)
QRS
#QRS
#SA node
#AV node
#Bundle of His
Bundle branches
#Purkinje fibers
#QRS
#ST
(mV) 0 ECG (lead ... fibers #QRS #ST
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Elevation - Differential ... Opposing leads ST ... ventricle pacing lead ... Segment #Elevation #differential