Radiofrequency ablation of atrioventricular nodal reentrant tachycardia using a novel magnetic guidance system compared with a conventional approach

Roger Kerzner, José Mauricio Sánchez, Judy L. Osborn, Jane Chen, Mitchell N. Faddis, Marye J. Gleva, Bruce D. Lindsay, Timothy W. Smith

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

Background: A novel magnetic guidance system has been developed that allows the operator to remotely navigate an electrophysiology mapping/ ablation catheter to precise locations in the heart for treatment of tachyarrhythmias. To date, this new technology has not been directly compared with the conventional approach. Objective: To compare the use of the magnetic guidance system to the conventional approach for ablation of atrioventricular nodal reentry tachycardia. Methods: Between November 2002 and October 2004, 28 patients with atrioventricular nodal reentry tachycardia treated with the magnetic guidance system were retrospectively compared with 28 matched control patients. Results: Patients treated using the magnetic guidance system had similar procedure durations and fluoroscopy times compared with the matched controls. The only statistically significant difference between the groups was a longer time between insertion of the ablation catheter and placement of the first radiofrequency lesion in the magnetic guidance system cohort (23.3 ± 12.0 vs. 10.5 ± 13.9, p=0.001), possibly due to the research protocol. However, there was a trend toward a shorter total time that radiofrequency energy was applied in the magnetic guidance system cohort (5.2 ± 4.5 vs. 8.0 ± 7.2, p=0.087). There were no major complications or recurrences after at least 3 months of follow-up among the patients treated with the magnetic guidance system. Conclusion: The magnetic guidance system appears to have similar, and possibly improved, clinical efficacy compared with conventional catheter navigation for the treatment of atrioventricular nodal reentrant tachycardia.

Original languageEnglish (US)
Pages (from-to)261-267
Number of pages7
JournalHeart Rhythm
Volume3
Issue number3
DOIs
StatePublished - Mar 1 2006

Keywords

  • Catheter ablation
  • Magnetics
  • Mapping
  • Matched-pair analysis
  • Supraventricular
  • Tachycardia

Fingerprint Dive into the research topics of 'Radiofrequency ablation of atrioventricular nodal reentrant tachycardia using a novel magnetic guidance system compared with a conventional approach'. Together they form a unique fingerprint.

  • Cite this