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ECG of the Enlarged Heart

ECG of the Enlarged Heart. The Cardiac Cycle. Know this. During examination V follows S2 and should be Visible with elevated JVP. Mitral Regurg. Aortic Regurg. Mitral Stenosis. Aortic Stenosis. What are the features of this ECG. Relations of ECG leads. aVR RV.

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ECG of the Enlarged Heart

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  1. ECG of the Enlarged Heart

  2. The Cardiac Cycle

  3. Know this During examination V follows S2 and should be Visible with elevated JVP

  4. Mitral Regurg

  5. Aortic Regurg

  6. Mitral Stenosis

  7. Aortic Stenosis

  8. What are the features of this ECG

  9. Relations of ECG leads aVR RV

  10. Characteristics of normal QRS complex • Width : 3 small squares or less • In Lead V1, the depth of S wave is > than the height of R wave • In Lead V5,V6, the height of R wave is always < 25mm • In the left ventricular leads (V5, V6), presence of a septal Q wave is normal

  11. Features of Left Ventricular Hypertrophy • Left axis deviation (look at inferior leads III or AVF) • Tall R waves in lateral LV leads (aVL, V, VI - but not V/VI in a grossly enlarged heart) • Deep S in septal/RV leads(III, V1 & V2) • Delayed intrinsicoid deflection> 0.05s • Strain pattern • ST-T abnormalities

  12. ESTES Criteria for LVH ("diagnostic", >5 points; "probable", 4 points) ESTES Criteria for LVH ("diagnostic", >5 points; "probable", 4 points)

  13. Analyse Stephen’s ECG

  14. RV Hypertrophy • Right axis deviation • Tall R-waves in RV leads (look at aVR) • Deep S-waves in LV leads • ST-T changes

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