ST
Results:
ST Depression in V1-V4: DDx
Key Points: Do not reflexively label ST depression in V1–V4 as “anterior ischemia/NSTEMI.” In ACS symptoms, posterior OMI is a major concern when the depression is most prominent in V1–V3…
ST Elevation: DDx
Key Points Definition: ST elevation refers to upward displacement of the ST segment above baseline, often signaling acute myocardial injury. Clinical Importance: While most concerning for STEMI due to acute…
ST Segment: Basics
Key Points Definition: The ST segment runs from the J point (end of QRS) to the start of the T wave, the interval between ventricular depolarization and repolarization. Normal: Usually…
ST Elevation in aVR: DDx
Key Points Global Subendocardial Ischemia: ST elevation (STE) in aVR with diffuse ST depression elsewhere usually reflects global subendocardial ischemia. Proximal Occlusion or Severe CAD: Common in left main (LMCA)…
Right Axis Deviation + ST Elevation: DDx
Key Points RAD combined with ST-segment elevation (STE) is an uncommon but high-risk finding. While STE often suggests acute coronary occlusion, this pattern rarely reflects classic STEMI. Several non-ischemic conditions…
ST Depression V1-V4: OMI Pattern
Key Points Most Missed STEMI: Isolated posterior MI is the most commonly missed occlusion MI due to the absence of ST elevation on standard 12-lead ECG. ECG Pattern of Posterior…
Subtle ST Segment Elevation: OMI Pattern
Key Points ACS Dynamics: Occluded arteries in ACS can spontaneously reperfuse and reocclude, making ECG findings variable. Limitations of Computer Interpretation: Subtle STE is often missed by computerized ECG interpretation;…
Differential Diagnoses: the main three things that cause narrow complex regular tachycardias
A 51-year-old man presents to the ED with generalized weakness and palpitations. The following prehospital ECG is obtained:
ECG Tags
- A-Z
- ACS-OMI
- Annual ECG Competition
- Approach
- Arrest
- Arrhythmia
- Artifact
- Attending
- AV Block
- aVL
- aVR
- Axis
- Board Review
- Bradyarrhythmia
- Chest Pain
- Clumped Beats
- Conduction
- Core
- Curriculum
- DDx
- Devices
- Documentation
- ECG Interpretation
- ECG Variant
- Education/Teaching
- Electrolytes
- Emergencies
- Emergent Cath Lab Activation
- EMS
- Guidelines
- Hub
- Hypercalcemia
- Hyperkalemia
- Hypermagnesemia
- Hypocalcemia
- Hypokalemia
- Hyponatremia
- Hypothermia
- Index
- Intervals
- Irregular
- Ischemia
- J Waves
- LBBB
- Lead Placement
- Metabolic
- Mimics
- Narrow QRS
- Occlusion MI
- OMI Pattern
- Osborn Waves
- P Wave
- Paced Rhythms
- Pacemaker/ICD
- Paramedics
- Pauses
- PE
- Pediatrics
- Pericardial
- Pericarditis
- PGY-1
- PGY-2
- PGY-3
- PGY-4
- Post-Cardiac Arrest
- Posterior MI
- PR
- Preexcitation
- Prolonged QT
- Pulmonary Embolism
- PVCs
- Q Wave
- QRS
- QT
- R Waves
- RAD
- RBBB
- Regular
- Reperfusion
- Rhythm
- S Waves
- Segments
- Seizure
- Serial ECGs
- Shock
- ST
- ST Elevation
- STEMI
- STEMI Equivalent
- Stroke
- Structural
- Students
- Syncope
- T Waves
- Tachyarrhythmia
- Tachycardia
- Tamponade
- Toxicology
- TP
- U Waves
- Unstable
- Ventricular Rhythms
- Ventricular Tachycardia
- Voltage
- Waveforms
- Wide QRS
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