27 results
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
new/old infarct STEMI ... • DDx: Acute STEMI ... big R or R/S>I STEMI ... have no pain - LAD ... avR - proximal LAD
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
Discordance" = ST ... Criteria - Suspect STEMI ... > 1 mm in any lead ... b) Concordant STD ... wave > 25% in any lead
Causes of ST Elevation in ECG

#STElevation #STEMI #ECG #EKG #Electrocardiogram #Causes #Differential #ABCHELP #Mnemonic
Causes of ST Elevation ... #STElevation #STEMI ... Electrocardiogram #Causes
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
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 ... an isolectric ST ... STEMI Criteria misses ... @EM_RESUS #LAD
ST segment elevation in acute myocardial ischemia

ST segment elevations with straight (horizontal, upsloping or downsloping) or
ST segment elevation ... Concave ST segment ... less likely to be caused ... the underlying cause ... Cardiology #ECG #EKG #STEMI
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 ... voltage Other Causes ... #STEMI #Segment
Modified Sgarbossa Criteria for diagnosing STEMI in the presence of a LBBB If there is concordant
for diagnosing STEMI ... is concordant ST ... or a discordant ST ... ≥ 1mm (in any lead ... B: Concordant STD
Torsades, STEMI with LAD Occlusion and PCI

Truly remarkable case.
 
🚑😵Arrest➡️Mg+⚡️➡️😧awake➡️cath lab➡️100% LAD➡️🙏👍🏻❤️

- Dr. Edward Lew
@elewMD

#Torsades #LADOcclusion
Torsades, STEMI ... with LAD Occlusion ... Truly remarkable case ... ➡️100% LAD➡️🙏👍 ... #LADOcclusion #STEMI
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
Anemia Intrinsic Causes ... SCD, thalassemias ... elliptocytosis Extrinsic Causes ... Other agents ex. lead ... Intravascular Causes