{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,6]],"date-time":"2026-05-06T22:31:45Z","timestamp":1778106705319,"version":"3.51.4"},"reference-count":22,"publisher":"Oxford University Press (OUP)","issue":"1","license":[{"start":{"date-parts":[[2024,1,9]],"date-time":"2024-01-09T00:00:00Z","timestamp":1704758400000},"content-version":"vor","delay-in-days":12,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2023,12,28]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Aims<\/jats:title>\n                  <jats:p>High-power ablation is effective for ventricular arrhythmia ablation; however, it increases the risk of steam pops. The aim of this study was to define the safety and efficacy of QMODE ablation in the ventricle and the risk of steam pop.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods and results<\/jats:title>\n                  <jats:p>Consecutive patients undergoing ventricular ablation using QDOT were included in a prospective single-centre registry. Procedural data, complications, and follow-up were systematically analysed and compared with a historical ventricular tachycardia (VT) and premature ventricular complexes (PVC) cohort ablated using STSF. QMODE (\u226450\u2005W) ablation was performed in 107 patients [age 62 \u00b1 13 years; 76% male; VT (n = 41); PVC (n = 66)]. A total of 2456 applications were analysed [power: 45.9 \u00b1 5.0\u2005W with minimal power titration (90% &amp;gt; 95% max power); duration 26 \u00b1 8\u2005s; impedance drop 9.4 \u00b1 4.7\u2005\u03a9; ablation index: 569 \u00b1 163; mean\u2013max temperature 44.3 \u00b1 2.6\u00b0C]. Ventricular tachycardia ablation was associated with shorter radiofrequency (RF) time and a trend towards shorter procedure times using QDOT (QDOT vs. STSF: 20.1 \u00b1 14.7 vs. 31 \u00b1 17\u2005min; P = 0.002, 151 \u00b1 59 vs. 172 \u00b1 48\u2005min; P = 0.06). Complications, VT recurrence, and mortality rates were comparable (QDOT vs. STSF: 2% vs. 2%; P = 0.9, 24% vs. 27%; P = 0.82, and 2% vs. 4%; P = 0.67). Five audible steam pops (0.02%) occurred. Premature ventricular complex ablation was associated with comparable RF and procedure times (QDOT vs. STSF: 4.8 \u00b1 4.6 vs. 3.9 \u00b1 3.1\u2005min; P = 0.25 and 96.1 \u00b1 31.9 vs. 94.6 \u00b1 24.7\u2005min; P = 0.75). Complication and PVC recurrence were also comparable (QDOT vs. STSF: 0% vs. 3%; P = 0.17 and 19% vs. 22%; P = 0.71).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>Ventricular ablation using QMODE \u2264 50\u2005W is safe and effective for both VT and PVC ablation and is associated with a low risk for steam pop.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/europace\/euad372","type":"journal-article","created":{"date-parts":[[2024,1,9]],"date-time":"2024-01-09T13:38:57Z","timestamp":1704807537000},"source":"Crossref","is-referenced-by-count":7,"title":["Performance and safety of temperature- and flow-controlled radiofrequency ablation for ventricular arrhythmia"],"prefix":"10.1093","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3988-7262","authenticated-orcid":false,"given":"Richard","family":"Kobza","sequence":"first","affiliation":[{"name":"Heart Center, Luzerner Kantonsspital , Zentralstrasse 1 , Lucerne 6004, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gabriela","family":"Hilfiker","sequence":"additional","affiliation":[{"name":"Heart Center, Luzerner Kantonsspital , Zentralstrasse 1 , Lucerne 6004, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-7942-0145","authenticated-orcid":false,"given":"Sophie","family":"Rissotto","sequence":"additional","affiliation":[{"name":"Clinical Support, Biosense Webster , Zug , Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saagar","family":"Mahida","sequence":"additional","affiliation":[{"name":"Department of Cardiac Electrophysiology, Liverpool Heart and Chest Hospital , Liverpool , UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2927-8087","authenticated-orcid":false,"given":"Christian","family":"Grebmer","sequence":"additional","affiliation":[{"name":"Heart Center, Luzerner Kantonsspital , Zentralstrasse 1 , Lucerne 6004, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4748-0158","authenticated-orcid":false,"given":"Firat","family":"Duru","sequence":"additional","affiliation":[{"name":"Cardiology Department, University Hospital Z\u00fcrich , Z\u00fcrich , Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8965-8495","authenticated-orcid":false,"given":"Helmut","family":"P\u00fcrerfellner","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Ordensklinikum Linz Elisabethinen , Linz , Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2224-7448","authenticated-orcid":false,"given":"Benjamin","family":"Berte","sequence":"additional","affiliation":[{"name":"Heart Center, Luzerner Kantonsspital , Zentralstrasse 1 , Lucerne 6004, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2024,1,9]]},"reference":[{"key":"2024013106583957700_euad372-B1","doi-asserted-by":"crossref","first-page":"1363","DOI":"10.1016\/j.jacep.2019.09.015","article-title":"Ventricular tachycardia ablation: past, present, and future perspectives","volume":"5","author":"Guandalini","year":"2019","journal-title":"JACC Clin Electrophysiol"},{"key":"2024013106583957700_euad372-B2","doi-asserted-by":"crossref","first-page":"684","DOI":"10.1016\/j.jacep.2020.02.013","article-title":"Evaluation of radiofrequency ablation irrigation type: in vivo comparison of normal versus half-normal 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