PMID- 25736724 OWN - NLM STAT- MEDLINE DCOM- 20160323 LR - 20220311 IS - 1532-2092 (Electronic) IS - 1099-5129 (Linking) VI - 17 IP - 7 DP - 2015 Jul TI - Ablation of typical atrial flutter using a non-fluoroscopic catheter tracking system vs. conventional fluoroscopy--results from a prospective randomized study. PG - 1117-21 LID - 10.1093/europace/euu398 [doi] AB - AIMS: Reduction of radiation exposure using a sensor-based non-fluoroscopic catheter tracking (NFCT) system (MediGuide, St Jude Medical, Inc.) was recently demonstrated by retrospective comparisons. We aimed to prospectively compare the effects of using NFCT vs. standard fluoroscopy on procedural parameters in patients undergoing radiofrequency ablation of typical atrial flutter. METHODS AND RESULTS: We prospectively randomized 40 patients undergoing cavotricuspid isthmus ablation for typical atrial flutter to either NFCT (n = 20) or conventional fluoroscopy (CONV, n = 20). Procedural parameters such as fluoroscopy time, radiation dose, and procedure duration, as well as periprocedural complications were compared. There were no statistically significant differences in baseline characteristics between the two groups. Bidirectional isthmus block was achieved in all patients. Fluoroscopy time was significantly reduced in the NFCT group 0.3 [inter-quartile range (IQR) 0.2; 0.48] min when compared with CONV [5.7 (IQR 4.2; 11.5) min] (P < 0.001). This resulted in a significant reduction in radiation dose in patients randomized to NFCT [17.4 (IQR 11; 206.6) cGy cm(2)] vs. the CONV group [418.4 (IQR 277; 812.2) cGy cm(2)] (P < 0.001). There were no significant differences in procedure duration between the NFCT group [49.5 (IQR 37; 65) min] when compared with the CONV group [33.5 (IQR 26.3; 55.5) min] (P = 0.053). No adverse events were recorded. Freedom from atrial flutter at 6 months of follow-up was 19/20 (95%) in the NFCT and 18/20 (90%) in the CONV group (n.s.). CONCLUSION: In this first prospective randomized study, by comparing NFCT with standard fluoroscopy in patients undergoing radiofrequency ablation of typical atrial flutter, NFCT significantly reduced both radiation dose and fluoroscopy time with no effects on procedural duration. These findings support the incorporation of NFCT in routine clinical use. CI - Published on behalf of the European Society of Cardiology. All rights reserved. (c) The Author 2015. For permissions please email: journals.permissions@oup.com. FAU - Schoene, Katharina AU - Schoene K AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany schoene_katha@t-online.de. FAU - Rolf, Sascha AU - Rolf S AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - Schloma, Denis AU - Schloma D AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - John, Silke AU - John S AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - Arya, Arash AU - Arya A AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - Dinov, Borislav AU - Dinov B AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - Richter, Sergio AU - Richter S AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - Bollmann, Andreas AU - Bollmann A AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - Hindricks, Gerhard AU - Hindricks G AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. FAU - Sommer, Philipp AU - Sommer P AD - Heart Center, Department of Electrophysiology, University of Leipzig, Struempellstrasse 39, Leipzig 04289, Germany. LA - eng PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial DEP - 20150303 PL - England TA - Europace JT - Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology JID - 100883649 SB - IM MH - Aged MH - Atrial Flutter/*diagnosis/*surgery MH - *Cardiac Catheters MH - Electromagnetic Fields MH - Equipment Design MH - Equipment Failure Analysis MH - Female MH - Fluoroscopy/*instrumentation/methods MH - Germany MH - Humans MH - Male MH - Middle Aged MH - Prospective Studies MH - Radiation Dosage MH - Radiation Protection/methods MH - Surgery, Computer-Assisted/*instrumentation MH - Treatment Outcome OTO - NOTNLM OT - Ablation OT - Non-fluoroscopic tracking system OT - Radiation time OT - Typical atrial flutter EDAT- 2015/03/05 06:00 MHDA- 2016/03/24 06:00 CRDT- 2015/03/05 06:00 PHST- 2014/09/08 00:00 [received] PHST- 2014/12/15 00:00 [accepted] PHST- 2015/03/05 06:00 [entrez] PHST- 2015/03/05 06:00 [pubmed] PHST- 2016/03/24 06:00 [medline] AID - euu398 [pii] AID - 10.1093/europace/euu398 [doi] PST - ppublish SO - Europace. 2015 Jul;17(7):1117-21. doi: 10.1093/europace/euu398. Epub 2015 Mar 3.