Layered Activation of Epicardial Scar in Arrhythmogenic Right Ventricular Dysplasia
نویسندگان
چکیده
منابع مشابه
Layered activation of epicardial scar in arrhythmogenic right ventricular dysplasia: possible substrate for confined epicardial circuits.
BACKGROUND Ventricular tachycardia ablation in arrhythmogenic right ventricular dysplasia (ARVD) is more successful when including epicardial ablation. Scarring may cause independent, layered epicardial activation and promote epicardially confined ventricular tachycardia circuits. We aimed to characterize transmural right ventricular activation in ARVD patients and to compare this with referenc...
متن کاملCombined endocardial and epicardial catheter ablation in arrhythmogenic right ventricular dysplasia incorporating scar dechanneling technique.
BACKGROUND Ventricular tachycardia (VT) ablation in patients with arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) has a low success rate. A more extensive epicardial (Epi) arrhythmogenic substrate could explain the low efficacy. We report the results of combined endocardial (Endo) and Epi VT ablation and conducting channel (CC) elimination. METHODS AND RESULTS Eleven consec...
متن کاملEpicardial substrate and outcome with epicardial ablation of ventricular tachycardia in arrhythmogenic right ventricular cardiomyopathy/dysplasia.
BACKGROUND Efficacy of endocardial ventricular tachycardia (VT) ablation in arrhythmogenic right ventricular cardiomyopathy/dysplasia may be limited by epicardial VT, right ventricular thickening, or both. We sought to characterize the endocardial versus epicardial substrate, measure right ventricular free wall thickness, and determine epicardial ablation efficacy in patients with right ventric...
متن کاملArrhythmogenic right ventricular dysplasia.
The clinical course in 15 patients with features consistent with arrhythmogenic right ventricular dysplasia is described. At referral seven patients had abnormal physical findings, nine had abnormal electrocardiograms with non-specific right-sided abnormalities, and seven patients had increased heart size or prominent right ventricles on chest x ray. During long term follow up (mean 8 8 years, ...
متن کاملArrhythmogenic right ventricular dysplasia.
Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to occur in six per 10,000 persons in certain populations. After hypertrophic heart disease, it is t...
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ژورنال
عنوان ژورنال: Circulation: Arrhythmia and Electrophysiology
سال: 2012
ISSN: 1941-3149,1941-3084
DOI: 10.1161/circep.111.967935