STEMI mimics
Results:
STEMI vs. Severe Hyperkalemia
Key Points The ECG Chameleon: Severe hyperkalemia can produce ST segment elevations, wide QRS complexes, and conduction delays that closely resemble STEMI or ventricular tachycardia. Early misinterpretation can lead to…
STEMI Mimics
Key Points Contextual Interpretation: The accuracy of ECG interpretation depends on the pretest probability for the condition being evaluated. ECGs should always be interpreted in the context of the clinical…
Do these biphasic T waves and ST segment abnormalities suggest acute coronary occlusion MI?
A 40-year-old man is brought to the emergency department for acute chest pain. The following ECG was obtained:
Differential Diagnoses: ST segment elevation in a patient with altered mental status, a stepwise approach
A 60-year-old man with PMHx of pancreatic cancer and prior cerebrovascular accidents presents to the ED with altered mental status. Family is concerned that his symptoms are similar to prior…
STAT ECG Diagnoses: causes of right axis deviation, and evaluation of ST segments in patient with right bundle branch block (RBBB)
An 80-year-old man presents to an emergency department in Chile with chest pain radiating to the right shoulder and back. The following ECG is obtained on arrival and computer interpreted…
Differential Diagnoses: T wave inversions and prolonged QTc interval
A 53-year-old woman with PMHx of HTN and DM presents with atypical chest pain. She is noted to have a completely normal baseline ECG. The following ECG is obtained:
ECG Tags
- & Myocardial Ischemia
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- 1st degree AV Block
- 1st degree AVB
- 2:1 AV Block
- 2:1 AVB
- 2:1 Conduction
- 2015 ECG Competition
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- 2025 ACC/AHA/ACEP/NAEMSP/SCAI Clinical Practice Guidelines for the Management of Patients with Acute Coronary Syndromes
- 2025 ACS guidelines
- 3rd degree AV block
- 5 Step Approach
- 5-FU
- aberrancy
- Aberrant conduction
- Abnormal ECG
- Abnormal P wave Axis DDx
- absent p waves
- Accelerated idioventricular rhythm
- accelerated junctional rhythm
- Acidosis
- ACS
- ACS mimics
- ACS RIsk Factors
- Acute Chest Pain
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- Acute Coronary Syndromes (ACS)
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- Adenosine
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- Afib
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- Altered Mental Status Emergencies
- AMI
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- and Lead II R-wave-peak-time (RWPT) algorithms
- Anemia
- anemia in ACS
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- Aortic Dissection
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- arrhythmogenic cardiomyopathy
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- Artifact
- artifact vs. malignant arrhythmias
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- artifact vs. ventricular fibrillation
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- atrial fibrillation with complete heart block
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- Atrial Fibrillation with WPW
- Atrial flitter
- Atrial flutter
- Atrial Flutter 1:1 Conduction
- atrial flutter 2:!
- atrial flutter 2:1 conduction
- atrial flutter mimics
- Atrial Flutter with Variable Conduction
- Atrial parasystole
- Atrial septal defect
- Atrial Septal Defect (ASD) & Crochetage Pattern
- Atrial tachycardia
- Atrifact
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- Atrioventricular Blocks (AVB) Summary
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- bidirectional ventricular tachycardia
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- Biphasic T-waves
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- ddx
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- de Winter
- de Winter T-wave
- de Winter T-waves
- defibrillation
- Delta waves
- deWinter
- deWinter T-waves
- Dextrocardia
- differential diagnoses
- differential diagnoses for left axis deviation
- Diffuse ST elevation
- Diffuse ST Elevation DDx
- Diffuse ST-segment Elevation
- Diffuse STE
- dig effect
- digoxin
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- Digoxin toxicity
- DKA
- Dominant R wave
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- Dominant R wave in V1
- dresslers
- dresslers syndrome
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- Dysrhythmias
- Earliest ECG Evidence of Occlusion MI
- Early cardiac ischemia
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- early repolarization vs/ STEMI
- early signs of cardiac ischemia
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- Early STEMI
- ecg 101
- ECG Basics
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- ECG Evidence of Reperfusion After Occlusion
- ecg history
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- extreme axis deviation
- failure to capture
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- Fascicular blocks
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- First-Degree AV Block
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- Foundational Resident
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- high lateral STEMI
- high left ventricular voltages and 'dagger like' Q waves
- high risk pe
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- High-Grade (Advanced AV Block)
- high-risk pulmonary embolism
- Himalayan T-waves
- history of ecg
- History of presenting illness
- HOCM
- Hodges formula
- Hypeacute T waves
- hyperacute
- Hyperacute T-waves
- Hypercalcemia
- Hyperkalemia
- Hyperkalemia emergencies
- hyperkalemia mimics
- Hyperkalemia vs. STEMI
- Hyperkalemia vs. VT
- Hyperkalemic paralysis
- Hyperkalemic Periodic Paralysis
- Hyperkalemic Periodic Paralysis (“Impressive Syndrome”)
- Hypermagnesemia
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- hypokalemic periodic paralysis
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- in-training exam
- inappropriate sinus tachycardia
- incomplete right bundle branch block
- indeterminate axis
- indeterminate QRS axis
- inferior STEMI
- inservice exam
- intermittent
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- intervals
- Intracranial hemorrhage
- Intractable chest pain
- inverted P Waves
- Inverted T Waves
- Inverted U-waves
- IRBBB
- Irregular rhythm
- irregular rhythms
- Ischemia
- Ischemia & Infarction
- Ischemic T-waves
- Isoelectric baseline
- Isoelectric segment
- Isoelectric Segment of the ECG
- Isolated Posterior STEMI
- Isorhythmic AV dissociation
- Isorhythmic AVD
- ITE prep
- ITE review
- J point
- J wave
- J-waves
- Jervell
- Jervell and Lange-Nielsen Syndrome
- JLNS
- Josephson Sign
- Josephson’s sign
- junctional escape capture bigeminy
- junctional escape rhythms
- junctional rhythm
- Junctional rhythms
- Junctional Tachycardia
- Juvenile T wave inversions
- Juvenile T waves
- Juvenile T-wave pattern
- kid
- kid ecg
- kids
- killer differentials
- LAD
- LAD OMI
- LAE
- LAFB
- Lange
- Large T Wave DDx
- Large T-waves
- LBBB
- LBBB DDx
- lead misplacement
- lead V1
- left anterior fascicular block
- Left Atrial Enlargement
- Left axis deviation
- left axis deviation ddx
- left bundle branch block
- left posterior fascicular block
- Left Ventricular Hypertrophy (LVH)
- Left ventricular hypertrophy vs. STEMI
- lewis
- Lewis lead
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- life savers
- limb lead misplacement
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- Literature review
- Long QT
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- long ST segment
- Low Voltage
- low voltage differential
- Low voltage QRS
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- LPFB
- LQT1 (KCNQ1 Mutation)
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- LQTS
- LV Aneurysm
- LV Aneurysm vs. STEMI
- LVAD
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- LVH with strain pattern
- Lyme carditis
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- Mechanisms of ACS
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- MI
- mimics
- misplaced leads
- Mobitz
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- Mobitz I
- Mobitz I (Wenckebach)
- Mobitz II
- Mobitz II (Hay)
- Mobitz II AV block
- modified lead
- Modified Sgarbossa criteria
- Monomorphic Ventricular Tachycardia
- monomorphic VT
- Multifocal atrial tachycardia
- Myocarditis
- Myxedema
- Na channel blocker toxicity
- narrow & irregular tachycardia
- narrow & regular tachycardia
- Narrow complex and regular rhythms
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- Narrow complex irregular tachycardia
- Narrow Complex Regular Tachycardia
- narrow complex regular tachycardia differential
- Narrow Complex Tachycardia
- narrow qrs bradycardia
- Narrow QRS Bradycardia DDx
- New Q Waves
- New RBBB and LAFB
- Nielsen
- Nikelekam T-waves
- No clear P waves DDx
- Non-conducted P wave (P:QRS>1) DDx
- non-conducted PACs
- Non-STE ACS
- Non-sustained Ventricular tachycardia
- Non-sustained VT
- Nonspecific intraventricular conduction delay
- nonsustained
- nonsustained ventricular tachycardia
- Nonsustained VT
- normal
- Normal Cardiac Conduction
- Normal ECG
- normal heart rate
- Normal Heart Rate Ranges by Age
- normal lead placement
- normal qrs axis
- Normal R wave progression
- Normal Sinus Rhythm
- Normal STAT ECG
- Normal variant patterns
- normal variant ST elevation
- Normal variants
- Not Enough P Waves (P:QRS < 1) DDx
- Not normal ecg
- NSVT
- Occlusion MI
- Occlusion MI - STEMI Criteria & Beyond
- Occlusion MI patterns
- OMI
- OMI pa
- OMI Pattern
- OMI Pattern: ST Depression V1-V4
- OMI Patterns in Left Bundle Branch Block
- OMI Patterns in Ventricular Paced Rhythms
- OMI Patterns: STEMI (-) Occlusion MI
- Opiate Toxicity
- orthodromic
- orthodromic SVT
- Osborn waves
- overdose
- p mitrale
- p pulmonale
- p waves
- P.E.
- PAC
- PAC’s
- Paced rhythms
- Pacemaker
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- pacemaker malfunction
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- palpitations
- Pauses and clumped beats
- PE
- PE vs. STEMI
- peaked P waves
- Pediatric ECG
- Pediatric ECG Interval Table
- Pediatrics
- Pericardial effusion
- Pericardial Tamponade
- Pericarditis
- pericarditis vs acs
- Pericarditis vs. STEMI
- Periodic paralysis
- Persistent juvenile T-wave pattern
- PFO
- PGY-2 (Intermediate) Resident Curriculum
- PGY-3 (Advanced) Resident Curriculum
- PGY1 Curriculum
- PJC
- PJCs
- PJTW
- plaque rupture
- plaque vulnerability
- PMVT
- Pokey T wave
- Polymorphic Ventricular Tachycardia
- Polymorphic VT
- Polyuria
- Poor R-wave progression
- post arrest ECG
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- Post-Arrest ECG for Ischemia
- Post-arrest NSTE-ACS
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- post-cardiac arrest ecg
- post-mi pericarditis
- Post-Thrombolytic Reperfusion ECG Findings
- Posterior MI
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- POSTERIOR OMI
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- postural orthostatic tachycardia syndrome
- Potpourri
- POTS
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- precordial lead misplacement
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- preexcitation
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- preexcited af
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- Pregnancy
- Prehospital ECG
- premature atrial complexes
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- premature junctional complexes
- Prolonged QT
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- prolonged QTc
- Proper ECG Lead Placement
- proper lead placement
- proportionality
- PRWP
- Pseudo Wellens
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- Pseudonormalization of T-waves
- Pulmonary Embolism
- pulmonary hypertension
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- Q-waves
- QRS
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- qrs axis basics
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- RAD
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- rate & rhythm
- RBBB
- Really wide complex tachycardia
- reciprocal changes
- Recommended ECG Books
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- repolarization abnormalities
- Rescue PCI
- Resolved ST segment elevation
- Resources & Recommendations
- Respiratory variation
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- Revised Sgarbossa Criteria
- Rhythm
- Rhythm Interpretation
- right atrial enlargement
- Right axis
- Right Axis Deviation
- Right Axis Deviation DDx
- Right bundle branch block
- right heart strain
- Right sided leads
- Right Ventricular (RV) STEMI Criteria
- Right Ventricular Hypertrophy
- Rightward axis
- rollercoaster T waves
- RRWCT
- RV MI
- RV Outflow Tract Tachycardia (RVOT)
- RV STEMI
- rvh
- RVH with strain
- RVMI
- RWCT
- S wave
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- s5
- SAH
- Salvador Dali
- SANRT
- SCAD
- second degree av block
- Second-Degree AV Block Type I (Mobitz I / Wenckebach)
- Second-Degree AV Block Type II (Mobitz II)
- Second-Degree AV Block with 2:1 Conduction
- segments
- Seizure
- Seizures
- Septal STEMI
- Serial ECG
- Serial ECGs
- Severe Hyperkalemia
- Severe hypothyroidism
- Sgarbossa
- Sgarbossa Criteria
- Shark fin morphology
- Shark fin STEMI
- Short PR interval
- Short QT
- Short QT interval
- Short QT Syndrome
- Short QTc
- Shortened QT
- SHS
- sick sinus syndrome
- Sinoatrial Exit Block
- Sinoatrial Nodal Reentry Tachycardia
- Sinoatrial Nodal Reentry Tachycardia (SANRT)
- Sinus arrest
- sinus arrhythmia
- sinus bradycardia
- sinus inversus totalis
- Sinus Node Dysfunction
- Sinus Node Dysfunction (Sick Sinus Syndrome
- sinus rhythm
- Sinus rhythms
- Sinus Tachycardia
- situs inversus
- situs inversus totalis
- Sloof Lirpa Sign
- Slow Atrial fibrillation
- slow ventricular tachycardia
- slow vt
- Sodium channel blocker toxicity
- South Africa
- South Africa sign
- South African
- South African Flag Sign
- spiked
- Spiked Helmet sign
- spiked-helmet
- Spodick Sign
- Spodick’s Sign
- Spontaneous Coronary Artery Dissection
- Spontaneous Coronary Artery Dissection (SCAD)
- ST
- ST depression
- ST depression differential
- ST Depression in V1-V4 DDx
- ST depression V1-V4
- ST Elevation
- ST Elevation DDx
- ST Elevation in aVR DDx
- ST segment elevation
- ST Segment Elevation in aVR with Multi Lead ST Segment Depression
- ST-segment
- ST-segment depression
- stat
- stat ecg
- stat ecgs
- STD
- STE
- STE differential diagnosis
- STE in aVR
- steeple sign
- Steeple sign in V1
- STEMI
- STEMI Criteria
- STEMI Criteria & STEMI Equivalent Patterns
- STEMI equivalent
- STEMI equivalents
- STEMI mimics
- STEMI vs. acute pericarditis
- STEMI vs. Early repolarization
- STEMI vs. Severe Hyperkalemia
- stepwise approach
- strain
- Stress Testing
- Stress tests
- Student Level Curriculum
- Subtle ST elevation
- Subtle ST Segment Elevation (STE)
- subtle stemi
- Supraventricular tachycardia
- Supraventricular Tachycardia (SVT)
- Sustained VT
- SVT
- synchronization
- Syncop
- Syncope
- syncope ddx
- syncope differentials
- syncope emergencies
- Systematic approach to ECG
- T wave
- T wave inversion differential
- T Wave Inversion in V1-V3 DDx
- T wave inversions in V1-V3
- T wave morphology
- T-wave abnormalities
- T-wave alternans
- T-wave inversion
- T-wave inversions
- T-waves
- Tachycardia
- Takotsubo Cardiomyopathy
- Takotsubo Cardiomyopathy vs. STEMI
- Tall R wave in aVR
- Tall R wave in V1
- Tamponade
- TCA
- TCA overdose
- TCA toxicity
- TdP
- Terminal QRS distortion
- Terminal QRS Distortion (OMI Pattern)
- the basics
- The Bix Rule
- The Bix Rule – Unmasking Atrial Flutter
- The Curriculum
- third degree AV block
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- Thrombolytics
- too many P waves
- Top 10 cases of the past 10 years
- Torsades
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- TP segment
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- Tremor artifact
- trifascicular block
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- Type A Wellens
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- U-waves
- Understanding ECG Artifacts
- unifascicular
- unstable angina
- unstable bradycardia
- unstable tachyarrhythmia
- unstable tachycardia
- Upright T waves in V1
- urgent cath
- V1
- v1-v2 placed too high
- V1/V2
- vasospasm
- Ventricular aneurysm
- Ventricular dysrhythmias
- ventricular escape rhythms
- Ventricular fibrillation
- ventricular fibrillation mimics
- Ventricular Flutter
- Ventricular rhythm
- Ventricular rhythms
- Ventricular Tachycardia
- Ventricular Tachycardia (VT)
- Ventricular tachycardia mimics
- Ventricular tachycardia vs. SVT with aberrant conduction
- Ventricular Tachycardiak
- Vereckei aVR
- VF
- voltage
- VT
- VT mimics
- VT vs. SVT with Aberrancy
- w Voltage
- waveforms
- waves
- WCT
- Wellens
- Wellens waves
- Wellens’ syndrome
- Wide & Regular Tachydysrhythmia DDx
- wide complex irregular tachycardia
- Wide complex QRS
- wide complex regular tachycardia
- Wide complex tachycardia
- Wide QRS
- Wide QRS (BBBs & Paced Rhythms) vs. STEMI
- wide qrs bradycardia
- Wide QRS Complex DDx
- wide qrs differential
- Wide QRS interval
- wide vs. narrow QRS
- Wolff Parkinson White
- Wolff-Parkinson White (WPW) Syndrome
- WPW
- wpw syndrome
- WPW syndrome and Pseudo-MI patterns
- WPW vs STEMI
- WPW with Antidromic SVT
- WPW with atrial fibrillation
- WPW with Orthodromic SVT
- WPW with SVT
- Young patients
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