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- Title
Mapping of Atrial Tachycardia by Remote Magnetic Navigation in Postoperative Patients With Congenital Heart Disease.
- Authors
WU, JINJIN; PFLAUMER, ANDREAS; DEISENHOFER, ISABEL; HOPPMANN, PETRA; HESS, JOHN; HESSLING, GABRIELE
- Abstract
Remote Magnetic Mapping in Congenital Heart Disease. Objectives: The purpose of this study was to investigate if remote magnetic navigation (RMN) offers a reduction of fluoroscopy time when used for atrial tachycardia (AT) mapping in a spectrum of patients with congenital heart disease (CHD) after “simple” or “complex” atrial surgery. Background: Data about AT mapping using RMN in larger populations of patients with CHD are scarce. Methods: RMN in combination with electroanatomic mapping was used for AT mapping in 22 patients. According to anatomic complexity, patients were classified into 3 groups: Group 1: patients after minor atrial surgery (n = 7); Group 2: patients after the Fontan operation (n = 9); and group 3: patients after the Senning/Mustard operation (n = 6). Results: Atrial mapping with a nonirrigated tip RMN catheter was completed successfully in all patients. In Group 1 no significant reduction in fluoroscopy time was noticed over time (mean fluoroscopy time 7.9 minutes). In the 15 patients of group 2 and group 3 with complex CHD, the fluoroscopy time for mapping in the last 9 patients (6.4 ± 2.8 minutes) was significantly shorter than in the first 6 patients (29.7 ± 10.5 minutes, P < 0.0001). Acutely successful ablation was achieved in 21 of 22 patients (97%) using the RMN catheter (n = 3) or a conventional catheter (n = 18) without procedural complications. Conclusions: RMN for AT mapping in patients with complex atrial anatomy leads to a significant reduction of fluoroscopy time. (J Cardiovasc Electrophysiol, Vol. pp. 751-759, July 2010)
- Subjects
ATRIAL arrhythmias; CONGENITAL heart disease; CATHETER ablation; TACHYCARDIA treatment; HEART atrium; PATIENTS; SURGERY
- Publication
Journal of Cardiovascular Electrophysiology, 2010, Vol 21, Issue 7, p751
- ISSN
1045-3873
- Publication type
Article
- DOI
10.1111/j.1540-8167.2009.01697.x