{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:01:41Z","timestamp":1787014901707,"version":"build-2736575974"},"reference-count":28,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2008,11,11]],"date-time":"2008-11-11T00:00:00Z","timestamp":1226361600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2009,1]]},"abstract":"<jats:p>The cavotricuspid isthmus (CVTI) is the well\u2010established location of atrial tissue critical for the maintenance of typical atrial flutter. The CVTI begins at the electrically inert tricuspid valve and includes the atrial myocardium up to the inferior vena cava (IVC).<\/jats:p>\n                  <jats:p>In this article, we discuss relevant CVTI and right atrial anatomy of interest to the electrophysiologist. Critical questions that are considered include why ablation is sometimes difficult across the CVTI and how best to deal with anatomic variation including sub\u2010Eustachian pouches or large pectinate muscles encroaching onto the isthmus. Important electroanatomic features of the right atrium (RA) including sites for naturally occurring conduction block and the anatomy of the \u201clower loop\u201d are reviewed.<\/jats:p>\n                  <jats:p>Following this discussion on the impact of the underlying anatomy for right atrial flutter ablation, an approach to dealing with difficulty when mapping or ablating this common arrhythmia is presented.<\/jats:p>","DOI":"10.1111\/j.1540-8167.2008.01344.x","type":"journal-article","created":{"date-parts":[[2008,11,11]],"date-time":"2008-11-11T15:31:34Z","timestamp":1226417494000},"page":"113-122","source":"Crossref","is-referenced-by-count":78,"title":["Correlative Anatomy and Electrophysiology for the Interventional Electrophysiologist:"],"prefix":"10.1111","volume":"20","author":[{"given":"SAMUEL J.","family":"ASIRVATHAM","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2008,12,29]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1540-8167.2005.40709.x"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.1998.tb00091.x"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.99.23.3017"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.92.6.1389"},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.1997.tb01036.x"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1540-8167.2001.00210.x"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.1998.tb00896.x"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(96)00345-2"},{"key":"e_1_2_7_10_2","first-page":"409","article-title":"Prevalence of a right atrial pouch and extension of pectinate muscles across the tricuspid valve\u2010IVC isthmus","volume":"104","author":"Asirvatham S","year":"2001","journal-title":"Circulation"},{"key":"e_1_2_7_11_2","doi-asserted-by":"publisher","DOI":"10.1023\/A:1021171922099"},{"key":"e_1_2_7_12_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.93.2.284"},{"key":"e_1_2_7_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2003.11.036"},{"key":"e_1_2_7_14_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.94.3.407"},{"key":"e_1_2_7_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8159.1998.tb00187.x"},{"key":"e_1_2_7_16_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.101.18.2178"},{"key":"e_1_2_7_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0033-0620(05)80006-4"},{"key":"e_1_2_7_18_2","first-page":"99","volume-title":"Biventricular device implantation","author":"Asirvatham S","year":"2004"},{"key":"e_1_2_7_19_2","doi-asserted-by":"publisher","DOI":"10.1002\/9780470757727.ch5"},{"key":"e_1_2_7_20_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1540-8167.2003.02152.x"},{"key":"e_1_2_7_21_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.103.20.2521"},{"key":"e_1_2_7_22_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.2007.01028.x"},{"key":"e_1_2_7_23_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.101.13.1568"},{"key":"e_1_2_7_24_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.99.13.1700"},{"key":"e_1_2_7_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(93)91014-9"},{"key":"e_1_2_7_26_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.86.4.1233"},{"key":"e_1_2_7_27_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.2006.00647.x"},{"key":"e_1_2_7_28_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199207303270504"},{"key":"e_1_2_7_29_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.2006.00512.x"}],"container-title":["Journal of Cardiovascular Electrophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1540-8167.2008.01344.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1540-8167.2008.01344.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,14]],"date-time":"2023-10-14T23:06:12Z","timestamp":1697324772000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1540-8167.2008.01344.x"}},"subtitle":["Right Atrial Flutter"],"short-title":[],"issued":{"date-parts":[[2008,12,29]]},"references-count":28,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2009,1]]}},"alternative-id":["10.1111\/j.1540-8167.2008.01344.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1540-8167.2008.01344.x","archive":["Portico"],"relation":{},"ISSN":["1045-3873","1540-8167"],"issn-type":[{"value":"1045-3873","type":"print"},{"value":"1540-8167","type":"electronic"}],"subject":[],"published":{"date-parts":[[2008,12,29]]}}}