Morphology & chamber abnormalities
Right ventricular hypertrophy
ECG criteria
Right axis deviation, dominant R in V1, deep S in V6, often RV strain.
Related: morphology & chamber abnormalities
- Acute pericarditisDiffuse concave ST elevation with PR depression; no reciprocal changes.
- Left ventricular hypertrophyVoltage criteria (Sokolow-Lyon ≥35 mm), often with strain pattern in lateral leads.
- Pulmonary embolism (S1Q3T3 pattern)Sinus tachycardia, S in I, Q in III, inverted T in III; right heart strain.