Cardiac Resynchronization Therapy by Ablation of Right‐Anterolateral Accessory Pathway
Identifieur interne : 000377 ( Main/Exploration ); précédent : 000376; suivant : 000378Cardiac Resynchronization Therapy by Ablation of Right‐Anterolateral Accessory Pathway
Auteurs : Siegmund Winter [Autriche] ; Christian Meyer [Autriche, Allemagne] ; Martin Martinek [Autriche] ; Helmut Pürerfellner [Autriche] ; Hans Joachim Nesser [Autriche]Source :
- Echocardiography [ 0742-2822 ] ; 2011-07.
English descriptors
Abstract
Ventricular preexcitation caused by right‐sided accessory pathways can lead to abnormal septal motion patterns and may be associated with left ventricular (LV) dysfunction and heart failure, despite the lack of a clinical arrhythmia. Hence successful ablation of the accessory pathway abolishes not only preexcitation but also ventricular dyssynchrony in these patients. We describe a case of an asymptomatic 20‐year‐old male presenting with ventricular Type‐B preexcitation combined with LV dysfunction. The individual risk of arrhythmic events was enhanced due to competitive sport activities of the patient and a short antegrade refractory period of the accessory pathway. Hence standard radiofrequency ablation of the right anterolateral accessory pathway was performed, despite no history of tachycardia. After successful accessory pathway ablation, normalization of LV size and function was demonstrated by echocardiography with a long‐term follow‐up of 4 years. (Echocardiography 2011;28:E108‐E111)
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DOI: 10.1111/j.1540-8175.2010.01364.x
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Hence successful ablation of the accessory pathway abolishes not only preexcitation but also ventricular dyssynchrony in these patients. We describe a case of an asymptomatic 20‐year‐old male presenting with ventricular Type‐B preexcitation combined with LV dysfunction. The individual risk of arrhythmic events was enhanced due to competitive sport activities of the patient and a short antegrade refractory period of the accessory pathway. Hence standard radiofrequency ablation of the right anterolateral accessory pathway was performed, despite no history of tachycardia. After successful accessory pathway ablation, normalization of LV size and function was demonstrated by echocardiography with a long‐term follow‐up of 4 years. 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