{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T13:47:17Z","timestamp":1786369637657,"version":"build-2736575974"},"reference-count":24,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2014,12,2]],"date-time":"2014-12-02T00:00:00Z","timestamp":1417478400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pacing Clinical Electrophis"],"published-print":{"date-parts":[[2015,2]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Sufficient electrode\u2010tissue contact is crucial for adequate lesion formation in radiofrequency catheter ablation (RFCA).<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>We assessed the impact of direct catheter force measurement on acute procedural parameters and outcome of RFCA for paroxysmal and persistent atrial fibrillation (AF).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Ninety\u2010nine consecutive patients (70% men) with paroxysmal (63.6%) or persistent AF underwent left atrial RFCA using a 3.5\u2010mm open\u2010irrigated\u2010tip (OIT) catheter with contact force measurement capabilities (group 1). For comparison a case\u2010matched cohort with standard OIT catheters was used (99 patients; group 2). Case matching included gender, type of AF, number or RFCA procedures, and type of procedure.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Procedural data showed a significant decline in radiofrequency ablation time from 52 \u00b1 20 to 44 \u00b1 16 minutes (P = 0.003) with a remarkable mean reduction in overall procedure time of 34 minutes (P = 0.0001; 225.8 \u00b1 53.1 vs 191.9 \u00b1 53.3 minutes). In parallel, the total fluoroscopy time could be significantly reduced from 28.5 \u00b1 11.0 to 19.9 \u00b1 9.3 minutes (P = 0.0001) as well as fluoroscopy dose from 74.1 \u00b1 58.0 to 56.7 \u00b1 38.9 Gy\/cm<jats:sup>2<\/jats:sup> (P = 0.016). Periprocedural complications were similar in both groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The use of contact force sensing technology is able to significantly reduce ablation, procedure, and fluoroscopy times as well as dose in RFCA of AF in a mixed case\u2010matched group of paroxysmal and persistent AF. Energy delivery is substantially reduced by avoiding radiofrequency ablation in positions with insufficient surface contact. Additionally 12\u2010month outcome data showed increased efficacy. Such time saving and equally safe technology may have a relevant impact on laboratory management and increased cost effectiveness.<\/jats:p><\/jats:sec>","DOI":"10.1111\/pace.12549","type":"journal-article","created":{"date-parts":[[2014,12,3]],"date-time":"2014-12-03T10:12:01Z","timestamp":1417601521000},"page":"201-208","source":"Crossref","is-referenced-by-count":31,"title":["Optimizing Radiofrequency Ablation of Paroxysmal and Persistent Atrial Fibrillation by Direct Catheter Force Measurement\u2014A Case\u2010Matched Comparison in 198 Patients"],"prefix":"10.1111","volume":"38","author":[{"given":"ELISABETH","family":"SIGMUND","sequence":"first","affiliation":[{"name":"Department of Cardiology Elisabethinen University Teaching Hospital of the Universities Innsbruck, Vienna, Graz  Linz Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"HELMUT","family":"PUERERFELLNER","sequence":"additional","affiliation":[{"name":"Department of Cardiology Elisabethinen 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