Catheter ablation of idiopathic ventricular tachycardia in children using the EnSite NavX system with/without fluoroscopy. (10th September 2013)

• Record Type: Journal Article
• Authors: Ozyilmaz, Isa; Ergul, Yakup; Akdeniz, Celal; Ozturk, Erkut; Tanidir, Ibrahim C.; Tuzcu, Volkan
• Is Part Of: Cardiology in the young. Volume 24:Number 5(2014:Oct.)
• Page Start: 886
• Page End: 892
• Publication Date: 2013-09-10
• Subjects: Pediatric cardiology -- Periodicals; 618.9212
• DOI: 10.1017/S1047951113001364
• Languages: English
• ISSNs: 1047-9511

Abstract

<abstract abstract-type="normal"> <title>Abstract</title> <sec id="abs1" sec-type="general"> <title>Objectives</title> <p>Curative therapy of idiopathic ventricular tachycardia remains a challenge in interventional electrophysiology. The aim of this study was to demonstrate the utility of an EnSite NavX system in the catheter ablation of idiopathic ventricular tachycardia in children.</p> </sec> <sec id="abs2" sec-type="general"> <title>Patients and methods</title> <p>In all, 17 children with idiopathic ventricular tachycardia underwent electrophysiological studies using the EnSite NavX system guidance.</p> </sec> <sec id="abs3" sec-type="results"> <title>Results</title> <p>The mean patient age was 13 ± 2.4 years (range: 7.8–17.9) and the mean patient weight was 52.3 ± 11.9 kg (range: 32–75). The origin of ventricular tachycardia was in the right ventricular outflow tract in nine patients, in the left ventricle in six, near the bundle of His/right bundle branch in one, and in the left aortic cusp in one. The mean procedure and fluoroscopy times were 169.3 ± 43.2 minutes and 8 ± 10.8 minutes, respectively. No fluoroscopy was used in six patients. The mean radiation exposure was 33.1 ± 56.4 mGy. Acute success was achieved in 14 patients (82%). The focus of ventricular tachycardia was epicardial in two failed procedures. During a mean follow-up of 8.5 ± 7.6 months, ventricular tachycardia recurred in three patients, two of whom underwent a second procedure. Except for one patient who developed transient right bundle branch block, no complications were seen.</p> </sec> <sec id="abs4" sec-type="conclusion"> <title>Conclusion</title> <p>Catheter ablation of idiopathic ventricular tachycardia in children can be performed safely and effectively with low fluoroscopy exposure using the EnSite NavX system.</p> </sec> </abstract>