Ventricular Pre-excitation Causing Left Ventricular Dysfunction Partially Reverted After Ablation of the Accessory Pathway
Ventricular pre-excitation is one of the rarest causes of cardiomyopathy induced or mediated by arrhythmia. Right accessory pathways, specifically with left bundle branch block pattern, can cause ventricular dysfunction, since abnormal ventricular activation resulting from anterograde atrioventricul...
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| Veröffentlicht in: | Journal of cardiac arrhythmias 2019-01, Vol.32 (3), p.163 |
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| container_title | Journal of cardiac arrhythmias |
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| creator | João Paulo Chaves de Melo Maria Licia Ribeiro Cury Pavão Arfelli, Elerson Marcelo Garcia Leal Marin-Neto, José Antonio Schmidt, Andre |
| description | Ventricular pre-excitation is one of the rarest causes of cardiomyopathy induced or mediated by arrhythmia. Right accessory pathways, specifically with left bundle branch block pattern, can cause ventricular dysfunction, since abnormal ventricular activation resulting from anterograde atrioventricular conduction can cause atrioventricular, interventricular, and intraventricular dyssynchrony, with asynchronous contraction of the ventricular wall and mitral regurgitation. An asymptomatic patient, with ventricular pre-excitation with left bundle branch block and moderate ventricular dysfunction at echocardiography, was described. The electrophysiological study demonstrated an accessory route of anterior location and with an anterograde refractory period of 600 ms, successfully performing radiofrequency ablation and substantial improvement of ventricular function. |
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| ispartof | Journal of cardiac arrhythmias, 2019-01, Vol.32 (3), p.163 |
| issn | 2674-7081 2674-7472 |
| language | eng |
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| source | DOAJ Directory of Open Access Journals; EZB-FREE-00999 freely available EZB journals |
| subjects | Ablation Asymptomatic Cardiac arrhythmia Cardiomyopathy Cardiovascular disease Catheters Electrocardiography Heart failure Hepatitis Patients |
| title | Ventricular Pre-excitation Causing Left Ventricular Dysfunction Partially Reverted After Ablation of the Accessory Pathway |
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