17 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
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
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
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Diagnosis Framework STEMI ... Opposing leads ST ... ventricle pacing lead ... #STEMI #Segment
Mid Left Circumflex STEMI on ECG

This patient who had cp for 1 hour had a 100%
Left Circumflex STEMI ... ST elevations in ... with reciprocal st ... frequently missed stemi ... Mid #Circumflex #STEMI
Wraparound LAD STEMI on EKG
47 year old with chest pain. Ectopic atrial rhythm with ST elevations.
Wraparound LAD STEMI ... atrial rhythm with ST ... all wraparound LAD ... #Wraparound #LAD ... #STEMI #EKG #clinical
Wraparound LAD STEMI on Cardiac Cath
47 year old with chest pain. Ectopic atrial rhythm with ST
Wraparound LAD STEMI ... atrial rhythm with ST ... all wraparound LAD ... #Wraparound #LAD ... #STEMI #clinical
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 ... Elevation AcutE STEMI ... Brugada syndrome ST ... Nonconducted APC #LAD