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Arrhythmogenic Right Ventricular Cardiomyopathy: Difference between revisions
Arrhythmogenic Right Ventricular Cardiomyopathy (view source)
Revision as of 04:54, 13 April 2010
, 13 April 2010→Table 1
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* Inverted T waves in leads V<sub>1</sub> and V<sub>2</sub> in individuals >14 years of age (in the absence of complete right bundle-branch block) or in V<sub>4</sub>, V<sub>5</sub>, or V<sub>6</sub> | * Inverted T waves in leads V<sub>1</sub> and V<sub>2</sub> in individuals >14 years of age (in the absence of complete right bundle-branch block) or in V<sub>4</sub>, V<sub>5</sub>, or V<sub>6</sub> | ||
* Inverted T waves in leads V<sub>1</sub>, V<sub>2</sub>, V<sub>3</sub>, and V<sub>4</sub> in individuals >14 years of age in the presence of complete right bundle-branch block | * Inverted T waves in leads V<sub>1</sub>, V<sub>2</sub>, V<sub>3</sub>, and V<sub>4</sub> in individuals >14 years of age in the presence of complete right bundle-branch block | ||
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| colspan="2" | IV. Depolarization/conduction abnormalities | |||
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| colspan="2" style="padding-left:12px" | Major | |||
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* Epsilon waves or localized prolongation (>110 ms) of the QRS complex in right precordial leads (V<sub>1</sub> to V<sub>3</sub>) | |||
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* Epsilon wave (reproducible low-amplitude signals between end of QRS complex to onset of the T wave) in the right precordial leads (V<sub>1</sub> to V<sub>3</sub>) | |||
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| colspan="2" style="padding-left:12px" | Minor | |||
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* Late potentials (SAECG) | |||
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* Late potentials by SAECG in ≥1 of 3 parameters in the absence of a QRS duration of ≥110 ms on the standard ECG | |||
* Filtered QRS duration (fQRS) ≥114 ms | |||
* Duration of terminal QRS <40 <em>µ</em>V (low-amplitude signal duration) ≥38 ms | |||
* Root-mean-square voltage of terminal 40 ms ≤20 <em>µ</em>V | |||
* Terminal activation duration of QRS ≥55 ms measured from the nadir of the S wave to the end of the QRS, including R´, in V<sub>1</sub>, V<sub>2</sub>, or V<sub>3</sub>, in the absence of complete right bundle-branch block | |||
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| colspan="2" | V. Arrhythmias | |||
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| colspan="2" style="padding-left:12px" | Major | |||
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* Nonsustained or sustained ventricular tachycardia of left bundle-branch morphology with superior axis (negative or indeterminate QRS in leads II, III, and aVF and positive in lead aVL) | |||
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| colspan="2" style="padding-left:12px" | Minor | |||
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* Left bundle-branch block–type ventricular tachycardia (sustained and nonsustained) (ECG, Holter, exercise) | |||
* Frequent ventricular extrasystoles (>1000 per 24 hours) (Holter) | |||
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* Nonsustained or sustained ventricular tachycardia of RV outflow configuration, left bundle-branch block morphology with inferior axis (positive QRS in leads II, III, and aVF and negative in lead aVL) or of unknown axis | |||
* >500 ventricular extrasystoles per 24 hours (Holter) | |||
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