Radiofrequency Catheter Ablation of Idiopathic Right Ventricular Outflow Tract Arrhythmias

Indian Pacing and Electrophysiology Journal

Naiara Calvo, MD¹  Katja Zeppenfeld, MD, PhD¹  Monique Jongbloed, MD, PhD¹ 

[1] Departments of Cardiology, Leiden University Medical Center, Leiden, The Netherlands.;

关键词: ventricular arrhythmias;    outflow tract;    premature ventricular contractions;    ablation;   

DOI  :  10.1016/S0972-6292(16)30585-X

来源: DOAJ

【 摘 要 】

Idiopathic ventricular arrhythmias (VA) consist of various subtypes of VA that occur in the absence of clinically apparent structural heart disease. Affected patients account for approximately 10% of all patients referred for evaluation of ventricular tachycardia (VT). Arrhythmias arising from the outflow tract (OT) are the most common subtype of idiopathic VA and more than 70–80% of idiopathic VTs or premature ventricular contractions (PVCs) originate from the right ventricular (RV) OT. Idiopathic OT arrhythmias are thought to be caused by adenosine-sensitive, cyclic adenosine monophosphate (cAMP) mediated triggered activity and, in general, manifest at a relatively early age. Usually they present as salvos of paroxysmal ventricular ectopic beats and are rarely life-threatening. When highly symptomatic and refractory to antiarrhythmic therapy or causative for ventricular dysfunction, ablation is a recommended treatment with a high success rate and a low risk of complications.

【 授权许可】

Unknown