21 results
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
Un-stimulated #PQ ... (mV) 0 ECG (lead ... fibers #QRS #ST
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 ... - R/S >1 or ST
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
Reperfusion Management of Myocardial Infarction with ST-segment Elevation (STEMI)

#STEMI #PCI #Fibrinolysis #Transfer #Reperfusion #Algorithm #Timeline #Cardiology
Infarction with ST-segment ... Elevation (STEMI ... ) #STEMI #PCI ... #Reperfusion #Algorithm
Suspected ACS - OMI vs STEMI - Differential Algorithm

The name STEMI cognitively inspires EPs to fail
Suspected ACS - OMI vs STEMI ... - Differential Algorithm ... The name STEMI ... believe that the ST ... #Differential #Algorithm
Recommendations for initial management of Unstable Angina/NSTEMI

Flowchart for class I and class lla recommendations for initial
Unstable Angina/NSTEMI ... angina/non— ST-segment ... infarction (UA/NS TEMI ... UnstableAngina #Management #Algorithm
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
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
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
drugs Pacemaker ST ... repolarization Diffuse ST ... Elevation AcutE STEMI ... Brugada syndrome ST ... Nonconducted APC #LAD