{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T09:05:40Z","timestamp":1784883940625,"version":"3.55.0"},"reference-count":27,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2015,2,25]],"date-time":"2015-02-25T00:00:00Z","timestamp":1424822400000},"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":[[2015,5]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>The precise location of truly active reentry circuits of typical atrial flutter (AFL) has not been well identified. The purpose of this study was to verify our hypothesis that the posterior block line is located along the posteromedial right atrium (PMRA) and the crista terminalis (CT) is the anterior pathway of AFL, with real\u2010time intracardiac echo (ICE).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The entire right atrium (RA) three\u2010dimensional activation and entrainment mapping were evaluated during AFL in 18 patients using CARTO sound.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The CT was clearly visualized by ICE and the local electrograms along the CT were single potentials in all the patients. The CT was recognized as the truly active anterior pathway based on entrainment mapping in all patients. Double potentials were recorded along the PMRA. Entire RA entrainment mapping could be performed in 16 patients. The reentry circuits were separated into three passages. The first was around the tricuspid annulus (TA), the second the anterior superior vena cava (SVC; AFL waves passed between the anterior SVC and RA appendage), and the last the posterior SVC (between the posterior SVC and upper limit of the PMRA). All three of these passages were active in four, around the TA and anterior SVC in eight, around the TA and posterior SVC in three, and around only the anterior SVC in one patient.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The CT functions as the anterior pathway of typical AFL, and the posterior block line was located along the PMRA. Dual or triple circuits were recognized in the majority of AFL patients.<\/jats:p><\/jats:sec>","DOI":"10.1111\/pace.12597","type":"journal-article","created":{"date-parts":[[2015,1,21]],"date-time":"2015-01-21T11:11:55Z","timestamp":1421838715000},"page":"608-616","source":"Crossref","is-referenced-by-count":4,"title":["Crista Terminalis as the Anterior Pathway of Typical Atrial Flutter: Insights from Entrainment Map with 3D Intracardiac Ultrasound"],"prefix":"10.1111","volume":"38","author":[{"given":"TOMOYUKI","family":"NAKANISHI","sequence":"first","affiliation":[{"name":"Division of Cardiovascular Medicine, Department of Internal Medicine Kobe University Graduate School of Medicine  Kobe Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"KOJI","family":"FUKUZAWA","sequence":"additional","affiliation":[{"name":"Division of Cardiovascular Medicine, Department of Internal Medicine Kobe University Graduate School of Medicine  Kobe Japan"},{"name":"Section of 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