Successful bipolar ablation for ventricular tachycardia with potential substrate identification by pre-procedural cardiac magnetic resonance imaging
نویسندگان
چکیده
Cardiac magnetic resonance imaging (MRI) is a useful tool for detecting the arrhythmogenic substrate in cardiac sarcoidosis. We herein present a case of bipolar radiofrequency catheter ablation for ventricular tachycardia (VT) complicated with cardiac sarcoidosis, guided by pre-procedural cardiac MRI. Neither echocardiography nor endocardial voltage mapping suggested a septal VT substrate. However, MRI alone detected intramural lesions in the septum. Although application of endocardial energy failed to treat the VT, bipolar ablation targeting the potential substrate identified by MRI successfully eliminated the VT. Even when no abnormalities are depicted on echocardiography and endocardial voltage mapping, intramural scar tissue identified by cardiac MRI could be critical for VT.
منابع مشابه
Prognostic Value of Scar Imaging for€Substrate Ablation of Ventricular€Tachycardia
SEE PAGE 353 C atheter ablation for ventricular tachycardia (VT) in ischemic heart disease is considered standard therapy in patients with recurrent, sustained monomorphic ventricular tachycardia, usually after failed antiarrhythmic therapy. Many centers worldwide use pre-procedural imaging with cardiac magnetic resonance (CMR) to assess the “scar substrate” in patients with ischemic and non-is...
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Treatment for ventricular tachycardia (VT) generally includes 1 or more of the following options: antiarrhythmic therapy, an implantable cardioverter-defibrillator and/or catheter ablation. Catheter ablation is performed with an electroanatomic mapping system to define the heart's 3D anatomy, as well as regions of scar. Radiofrequency energy is then applied to areas of abnormal substrate within...
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BACKGROUND The relationship between cardiac contrast-enhanced magnetic resonance imaging (CE-MRI)-derived scar characteristics and substrate for ventricular tachycardia (VT) in patients with structural heart disease (SHD) has not been fully investigated. METHODS This study included 51 patients (mean age, 63.3±15.1 years) who underwent CE-MRI with SHD and VT induction testing before ablation. ...
متن کاملCardiovascular magnetic resonance guided electrophysiology studies
Catheter ablation is a first line treatment for many cardiac arrhythmias and is generally performed under x-ray fluoroscopy guidance. However, current techniques for ablating complex arrhythmias such as atrial fibrillation and ventricular tachycardia are associated with suboptimal success rates and prolonged radiation exposure. Pre-procedure 3D CMR has improved understanding of the anatomic bas...
متن کاملUtility of cardiac magnetic resonance imaging in identifying the potential structural heart disease for ventricular arrhythmia before ablation
Background Cardiac magnetic resonance imaging (CMR) is a powerful tool to identify the arrhythmia substrate in patients with ischemic or non-ischemic cardiomyopathy. However, the performance and diagnostic yield of CMR in pre-ablation evaluation for ventricular arrhythmia in patients without known structural heart disease was still unknown. In the present study, we sought to investigate the per...
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عنوان ژورنال:
دوره 10 شماره
صفحات -
تاریخ انتشار 2017