Abstract:
INTRODUCTION:EnSite NavX (NavX) is a novel mapping and navigation system that allows visualization of conventional catheters for diagnostic and ablative purposes and uses them to create a three-dimensional (3D) geometry of the heart. NavX is particularly suitable for ablation procedures utilizing an anatomic approach, as in the setting of common-type atrial flutter (AFL). The aim of this study was to compare NavX-guided and conventional ablation procedures for AFL. METHODS AND RESULTS:Forty consecutive patients (32 male, 59 +/- 12 years) with documented AFL were randomized to undergo fluoroscopy-guided (group I, 20 patients) or NavX-guided (group II, 20 patients) ablation, including 3D isthmus reconstruction. The same catheter setup was used in both groups. The endpoint of bidirectional isthmus block was obtained in all patients. Compared to conventional approaches, NavX-guided procedures significantly reduced fluoroscopy time (5.1 +/- 1.4 min vs 20 +/- 11 min, P < 0.01) and total x-ray exposure (5.1 +/- 3.1 Gycm2 vs 24.9 +/- 1.6 Gycm2, P < 0.01). Isthmus geometry reconstruction could be performed in all patients of group II. In 4 patients (20%) of group II, anatomic isthmus variations were detected by NavX. No significant differences in radiofrequency current applications and procedural times were found between the two groups. CONCLUSION:NavX technology allows geometry reconstruction of the cavotricuspid isthmus. NavX-guided ablation of AFL reduces total x-ray exposure compared to the fluoroscopy-guided approach but does not prolong procedure time.
journal_name
J Cardiovasc Electrophysioljournal_title
Journal of cardiovascular electrophysiologyauthors
Ventura R,Rostock T,Klemm HU,Lutomsky B,Demir C,Weiss C,Meinertz T,Willems Sdoi
10.1046/j.1540-8167.2004.04064.xkeywords:
subject
Has Abstractpub_date
2004-10-01 00:00:00pages
1157-61issue
10eissn
1045-3873issn
1540-8167pii
JCE04064journal_volume
15pub_type
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journal_title:Journal of cardiovascular electrophysiology
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journal_title:Journal of cardiovascular electrophysiology
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journal_title:Journal of cardiovascular electrophysiology
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journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
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更新日期:2007-06-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2020-08-01 00:00:00
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journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
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更新日期:2012-10-01 00:00:00
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journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
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更新日期:2016-09-01 00:00:00
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journal_title:Journal of cardiovascular electrophysiology
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journal_title:Journal of cardiovascular electrophysiology
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journal_title:Journal of cardiovascular electrophysiology
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