Left ventricular hypertrophy: Difference between revisions
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#R in aVL and S in V3 >28 mm in men | #R in aVL and S in V3 >28 mm in men | ||
#R in aVL and S in V3 >20 mm in women | #R in aVL and S in V3 >20 mm in women | ||
===Other Voltage Based Criteria=== | |||
*Lead I: R wave > 14 mm | |||
*Lead aVR: S wave > 15 mm | |||
*Lead aVL: R wave > 12 mm | |||
*Lead aVF: R wave > 21 mm | |||
*Lead V<sub>5</sub>: R wave > 26 mm | |||
*Lead V<sub>6</sub>: R wave > 20 mm | |||
*V4-V6 precordial leads may show ST depression & T wave inversions known as the '''LV Strain pattern''' | |||
===Common Causes=== | |||
*[[Hypertension (Main)]] | |||
*[[Aortic Stenosis]] | |||
*[[Aortic Regurgitation]] | |||
*[[Coarctation of the Aorta]] | |||
*[[Hypertrophic Cardiomyopathy]] | |||
*[[Mitral Regurgitation]] | |||
===Romhilt-Estes Criteria<ref>Romhilt DW and Estes EH Jr. A point-score system for the ECG diagnosis of left ventricular hypertrophy. Am Heart J 1968 Jun; 75(6) 752-8. lmid:4231231</ref>=== | ===Romhilt-Estes Criteria<ref>Romhilt DW and Estes EH Jr. A point-score system for the ECG diagnosis of left ventricular hypertrophy. Am Heart J 1968 Jun; 75(6) 752-8. lmid:4231231</ref>=== | ||
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* ST-T vector opposite to QRS with digitalis | * ST-T vector opposite to QRS with digitalis | ||
|| | || | ||
3 | 3 | ||
1 | 1 | ||
|- | |- | ||
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||1 | ||1 | ||
|- | |- | ||
||Delayed | ||Delayed intrinsicoid deflection in V<sub>5</sub> or V<sub>6</sub> (>0.05 sec) | ||
||1 | ||1 | ||
|} | |} | ||
==See Also== | ==See Also== |
Revision as of 03:53, 3 June 2014
ECG Findings
Sokolow-Lyon criterium[1]
- Most commonly used criteria
- R in V5 or V6 + S in V1 >35 mm.
Cornell Criteria
- R in aVL and S in V3 >28 mm in men
- R in aVL and S in V3 >20 mm in women
Other Voltage Based Criteria
- Lead I: R wave > 14 mm
- Lead aVR: S wave > 15 mm
- Lead aVL: R wave > 12 mm
- Lead aVF: R wave > 21 mm
- Lead V5: R wave > 26 mm
- Lead V6: R wave > 20 mm
- V4-V6 precordial leads may show ST depression & T wave inversions known as the LV Strain pattern
Common Causes
- Hypertension (Main)
- Aortic Stenosis
- Aortic Regurgitation
- Coarctation of the Aorta
- Hypertrophic Cardiomyopathy
- Mitral Regurgitation
Romhilt-Estes Criteria[2]
ECG Criteria | Points |
Voltage Criteria (any of):
|
3 |
ST-T Abnormalities:
|
3 1 |
Negative terminal P mode in V1 1 mm in depth and 0.04 sec in duration (indicates left atrial enlargement) | 3 |
Left axis deviation (QRS of -30° or more) | 2 |
QRS duration ≥0.09 sec | 1 |
Delayed intrinsicoid deflection in V5 or V6 (>0.05 sec) | 1 |
See Also
Source
- Adapted from lecture by Dr. James Niemann MD, Lampe, Pani, Donaldson, ECGpedia.org
- Journal of Electrocardiology. Vol 43 (2010). 40-42.
- ↑ Sokolow M, Lyon TP: The ventricular complex in left ventricular hypertrophy as obtained by unipolar precordial and limb leads. Am Heart J 37: 161, 1949
- ↑ Romhilt DW and Estes EH Jr. A point-score system for the ECG diagnosis of left ventricular hypertrophy. Am Heart J 1968 Jun; 75(6) 752-8. lmid:4231231