Abstract
The aim of this study was to evaluate the 'real-world' impact of a novel contact force (CF)-sensing (SmartTouch™, Biosense Webster, Diamond Bar, CA, USA) catheter coupled with an advanced catheter location (ACL) system on fluoroscopy time and fluoroscopy dose during atrial fibrillation (AF) ablation. This was a retrospective observational cohort study of prospectively collected data of 1515 consecutive patients undergoing paroxysmal AF (PAF) and persistent AF (PerAF) ablation at a single institution between 2009 and 2014. Patients undergoing AF ablation with the SmartTouch catheter and the ACL system (SmartTouch group, n = 510) were compared with those undergoing AF ablation without this technology (control group, n = 1005). The primary outcomes were total fluoroscopy time (min) and fluoroscopy dose as measured by the dose-area product (mGy cm(2)). Secondary endpoints included total procedure time, total ablation time, and major cardiac complications (tamponade, pericardial effusion, and urgent cardiac surgery). The SmartTouch group had significantly lower fluoroscopy times (9.5 vs. 41 min, P < 0.001), radiation doses (1044 vs. 3571 mGy cm(2), P < 0.001), and shorter procedural time (195 vs. 240 min, P < 0.001) when compared wi...Continue Reading
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