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

Reading File
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ECG myocardial infarction ST elevation

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ECG atrial fibrillation irregular rhythm absent P waves

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ECG complete heart block third degree AV block

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ECG Wolff-Parkinson-White syndrome delta wave short PR

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ECG hypertrophic cardiomyopathy left ventricular hypertrophy

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Finding Sources
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ECG pericarditis saddle-shaped ST elevation diffuse leads

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ECG ventricular tachycardia wide complex tachycardia

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ECG pulmonary embolism S1Q3T3 right heart strain

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ECG dilated cardiomyopathy left bundle branch block LBBB

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ECG Brugada syndrome coved pattern right bundle branch block V1 V2

Here's a summary of what was covered — all 10 diseases with ECG images sourced from peer-reviewed medical literature:
  1. STEMI — Convex ST elevation, tombstone morphology, reciprocal changes, Q-waves
  2. NSTEMI/Unstable Angina — ST depression, T-wave inversions (subendocardial pattern)
  3. Atrial Fibrillation — Absent P-waves, irregularly irregular rhythm, fibrillatory baseline
  4. Complete (3rd-Degree) AV Block — Full AV dissociation, slow escape rhythm independent of P-waves
  5. WPW Syndrome — Short PR, delta wave, widened QRS (pre-excitation triad)
  6. Hypertrophic Cardiomyopathy — LVH voltage, giant T-wave inversions (especially apical variant), absent septal Q-waves
  7. Acute Pericarditis — Diffuse saddle-shaped ST elevation, PR depression in II/V4–V6, PR elevation in aVR
  8. Pulmonary Embolism — Sinus tachycardia, S1Q3T3, RBBB, right precordial T-wave inversions
  9. Dilated Cardiomyopathy — LBBB, poor R-wave progression, AF, prolonged PR
  10. Brugada Syndrome — Coved ST elevation ≥2 mm in V1–V2 with inverted T-wave, pseudo-RBBB
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