{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T10:46:52Z","timestamp":1787741212501,"version":"build-2784847793"},"reference-count":25,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2025,7,31]],"date-time":"2025-07-31T00:00:00Z","timestamp":1753920000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,7,31]],"date-time":"2025-07-31T00:00:00Z","timestamp":1753920000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2025,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Multielectrode mapping catheters, such as the OCTARAY and OPTRELL, are essential in creating myocardial electroanatomical mapping in arrhythmias. However, only a few studies have compared their performance, and in this study, we addressed this gap in knowledge by comparing their performance in left atrial (LA) mapping during atrial fibrillation (AF) ablation and premature ventricular contraction (PVC) mapping.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and Results<\/jats:title>\n                    <jats:p>\n                      Twenty patients (10 each for LA and PVC mapping) were enrolled. LA voltage mapping was performed twice, alternating between catheters post\u2010AF ablation. Parameters compared included mapping time, mapping points, catheter\u2010induced premature atrial contraction, tissue proximity indication (TPI), low voltage area, and fluoroscopy time. For PVC mapping, comparisons included mapping time, catheter\u2010induced PVCs, earliest activation time measured from the onset of PVC QRS, earliest activation point, and fluoroscopy time. The mean voltage (0.192\u2009mV [0.072, 0.48] vs. 0.126\u2009mV [0.042, 0.378];\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001) and the percentage of TPI\u2010positive electrodes (14.97% vs. 11.45%;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) using the OPTRELL were significantly higher than those obtained using the OCTARAY. However, there were no significant differences in other LA parameters. In PVC mapping, catheter\u2010induced PVCs using the OPTRELL were significantly fewer than when using the OCTARAY (100 [32, 337] vs. 247 [110, 745],\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.039), with fewer catheter induced PVCs per minute (15 [6, 23] vs. 35 [20, 71],\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.039). However, no significant differences were observed in other PVCs mapping parameters.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>In LA mapping, the OPTRELL showed higher mean voltage and TPI positivity and in PVC mapping it showed fewer catheter\u2010induced PVCs compared to those of the OCTARAY catheters.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jce.70040","type":"journal-article","created":{"date-parts":[[2025,7,31]],"date-time":"2025-07-31T07:04:51Z","timestamp":1753945491000},"page":"2469-2477","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Comparison of Left Atrium and Premature Ventricular Contraction Mapping Using OCTARAY and OPTRELL Catheters"],"prefix":"10.1111","volume":"36","author":[{"given":"Jumpei","family":"Saito","sequence":"first","affiliation":[{"name":"Division of Cardiology Showa University Northern Yokohama Hospital Yokohama Kanagawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kato","family":"Daiki","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University Northern Yokohama Hospital Yokohama Kanagawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sato","family":"Hirotoshi","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University Northern Yokohama Hospital Yokohama Kanagawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshihiko","family":"Matsuda","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University Northern Yokohama Hospital Yokohama Kanagawa 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