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Explain me 10 common heart diseases with ECG changes and ECG images of those diseases

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STEMI ST elevation myocardial infarction ECG electrocardiogram

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atrial fibrillation ECG irregularly irregular no P waves

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ventricular tachycardia ECG wide complex tachycardia

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left bundle branch block LBBB ECG QRS morphology

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complete heart block third degree AV block ECG dissociation

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hypertrophic cardiomyopathy ECG left ventricular hypertrophy voltage criteria

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Wolff-Parkinson-White WPW ECG delta wave pre-excitation

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pericarditis ECG saddle-shaped ST elevation diffuse PR depression

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pulmonary embolism ECG S1Q3T3 right heart strain sinus tachycardia

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dilated cardiomyopathy ECG low voltage poor R wave progression sinus tachycardia

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The guide above covers all 10 diseases with dedicated ECG images sourced from peer-reviewed medical literature. Here's a quick recap of what was covered:
  1. STEMI — convex ST elevation, Q waves, reciprocal changes (two ECGs: anterior and inferolateral)
  2. NSTEMI/Unstable Angina — ST depression, T inversions, no Q waves
  3. Atrial Fibrillation — irregularly irregular rhythm, absent P waves, fibrillatory baseline
  4. Ventricular Tachycardia — wide QRS ≥120 ms, AV dissociation, fusion beats
  5. Complete (3rd Degree) AV Block — independent P waves and QRS, bradycardia
  6. LBBB — broad notched R waves laterally, QS in V1–V3, discordant ST-T changes
  7. WPW Syndrome — short PR, delta wave, pre-excitation pattern
  8. Acute Pericarditis — diffuse saddle-shaped ST elevation, PR depression, Spodick's sign
  9. Pulmonary Embolism — sinus tachycardia, S1Q3T3, right heart strain, T inversions V1–V4
  10. Hypertrophic Cardiomyopathy — LVH voltage, giant T-wave inversions (apical variant)
Let me know if you'd like deeper detail on any specific condition, treatment algorithms, or additional ECG variants.

Make printable pdf of above

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