{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T11:50:53Z","timestamp":1753876253682,"version":"3.41.2"},"reference-count":6,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2021,1,12]],"date-time":"2021-01-12T00:00:00Z","timestamp":1610409600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,2,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background\u2003<\/jats:title><jats:p>Biatrial tachycardia (BiAT) is a rare form of atrial macro-re-entrant tachycardia. Precise identification of interatrial connections and circuits of the BiAT is difficult. And incomplete understanding of the re-entrant circuit may lead to unnecessary ablation, thus increasing the risk of complications.<\/jats:p><\/jats:sec><jats:sec><jats:title>Case summary\u2003<\/jats:title><jats:p>A 69-year-old man with a history of mitral valve plasty for mitral regurgitation due to mitral valve prolapse was admitted for persistent atrial tachycardia. Electrophysiological examination using the CARTO mapping system was performed. A coherent map revealed an atrial tachycardia with a cycle length of 304\u2009ms and a re-entrant circuit involving the left atrial septum and right atrial septum, while a ripple map suggested an epicardial interatrial connection between the right atrium and left atrium. Radiofrequency ablation on the epicardial connection successfully terminated BiAT without complications.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion\u2003<\/jats:title><jats:p>In BiAT using both atrial septum as a re-entrant circuit, an interatrial connection or an atrial septum can be the target site for ablation. However, septal ablation can be challenging because of the risk of atrioventricular block or interatrial conduction delay, and minimal line or point ablation is needed. Coherent and ripple mapping can accurately determine the re-entrant circuit and interatrial connection of BiAT and reduce complication risks by terminating the atrial tachycardia with minimal ablation.<\/jats:p><\/jats:sec>","DOI":"10.1093\/ehjcr\/ytaa547","type":"journal-article","created":{"date-parts":[[2021,2,11]],"date-time":"2021-02-11T05:41:38Z","timestamp":1613022098000},"source":"Crossref","is-referenced-by-count":0,"title":["Utility of coherent and ripple mapping for post-mitral valve plasty biatrial macro-re-entrant tachycardia: a case report"],"prefix":"10.1093","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2588-3757","authenticated-orcid":false,"given":"Yuichiro","family":"Sagawa","sequence":"first","affiliation":[{"name":"Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, 3-12-1, Shinyamashita, Naka-ward, Yokohama City, Kanagawa 231-8682, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4661-2999","authenticated-orcid":false,"given":"Yasuteru","family":"Yamauchi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, 3-12-1, Shinyamashita, Naka-ward, Yokohama City, Kanagawa 231-8682, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kaoru","family":"Okishige","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Japan Red Cross Yokohama City Bay Hospital, 3-12-1, Shinyamashita, Naka-ward, Yokohama City, Kanagawa 231-8682, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3582-6104","authenticated-orcid":false,"given":"Tetsuo","family":"Sasano","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ward, Tokyo 113-8510, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2021,1,12]]},"reference":[{"key":"2021021009493467600_ytaa547-B1","doi-asserted-by":"crossref","first-page":"e003175","DOI":"10.1161\/CIRCEP.115.003175","article-title":"Biatrial tachycardia: distinguishing between active and passive activation","volume":"9","author":"Ip","year":"2016","journal-title":"Circ Arrhythm Electrophysiol"},{"key":"2021021009493467600_ytaa547-B2","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1007\/s10840-007-9198-6","article-title":"Transcatheter ablation of arrhythmias associated with congenital heart disease","volume":"22","author":"Szili-Torok","year":"2008","journal-title":"J Interv Card Electrophysiol"},{"key":"2021021009493467600_ytaa547-B3","doi-asserted-by":"crossref","first-page":"28","DOI":"10.1111\/jce.12543","article-title":"Biatrial tachycardia following linear anterior wall ablation for the perimitral reentry: incidence and electrophysiological evaluations","volume":"26","author":"Mikhaylov","year":"2015","journal-title":"J Cardiovasc Electrophysiol"},{"key":"2021021009493467600_ytaa547-B4","doi-asserted-by":"crossref","first-page":"e005558","DOI":"10.1161\/CIRCEP.117.005558","article-title":"Characteristics of single-loop macroreentrant biatrial tachycardia diagnosed by ultrahighresolution mapping system","volume":"11","author":"Kitamura","year":"2018","journal-title":"Circ Arrhythm Electrophysiol"},{"key":"2021021009493467600_ytaa547-B5","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1161\/CIRCEP.113.000656","article-title":"Postmitral valve replacement biatrial, septal macroreentrant atrial tachycardia developing after perimitral flutter ablation","volume":"7","author":"Namdar","year":"2014","journal-title":"Circ Arrhythm Electrophysiol"},{"key":"2021021009493467600_ytaa547-B6","doi-asserted-by":"crossref","first-page":"1525","DOI":"10.1111\/j.1540-8167.1999.tb00211.x","article-title":"Anatomy of the left atrium: implications for radiofrequency ablation of atrial \ufb01brillation","volume":"10","author":"Ho","year":"1999","journal-title":"J Cardiovasc Electrophysiol"}],"container-title":["European Heart Journal - 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