{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T12:24:24Z","timestamp":1753878264095,"version":"3.41.2"},"reference-count":3,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,4,3]],"date-time":"2025-04-03T00:00:00Z","timestamp":1743638400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Noninvasive Electrocardiol"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>We report a case of a 21\u2010year\u2010old female manifesting narrow QRS complex tachycardia and alternating R\u2010R intervals. The fixed RP interval suggested ventriculoatrial conduction via an accessory pathway (AP). The alternating PR intervals indicated anterograde conduction through the fast and slow nodal pathways, respectively. The coexistence of AP and dual atrioventricular nodal pathways is not rare, with most of them exhibiting as atrioventricular reentry tachycardia (AVRT) using the fast or slow nodal pathway exclusively as the anterograde limb. We propose that alternating dual nodal pathway AVRT may occur when the fast pathway's effective refractory period is between the cycle lengths of fast\u2010nodal\u2010pathway AVRT and slow\u2010nodal\u2010pathway AVRT.<\/jats:p>","DOI":"10.1111\/anec.70075","type":"journal-article","created":{"date-parts":[[2025,4,3]],"date-time":"2025-04-03T18:02:14Z","timestamp":1743703334000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Narrow <scp>QRS<\/scp> Tachycardia With Alternating R\u2010R Interval"],"prefix":"10.1111","volume":"30","author":[{"given":"Fenglin","family":"Wu","sequence":"first","affiliation":[{"name":"Department of Cardiology Bazhong Central Hospital  Bazhong China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6690-1114","authenticated-orcid":false,"given":"Lijun","family":"Zeng","sequence":"additional","affiliation":[{"name":"Laboratory of Cardiac Structure and Function Institute of Cardiovascular Diseases, West China Hospital, Sichuan University  Chengdu China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaobo","family":"Pu","sequence":"additional","affiliation":[{"name":"Department of Cardiology West China Hospital, Sichuan University  Chengdu China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,4,3]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0167-5273(96)02762-3"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.91.10.2614"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2018.01.010"}],"container-title":["Annals of Noninvasive Electrocardiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/anec.70075","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,5,27]],"date-time":"2025-05-27T08:06:29Z","timestamp":1748333189000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/anec.70075"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,4,3]]},"references-count":3,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2025,5]]}},"alternative-id":["10.1111\/anec.70075"],"URL":"https:\/\/doi.org\/10.1111\/anec.70075","archive":["Portico"],"relation":{},"ISSN":["1082-720X","1542-474X"],"issn-type":[{"type":"print","value":"1082-720X"},{"type":"electronic","value":"1542-474X"}],"subject":[],"published":{"date-parts":[[2025,4,3]]},"assertion":[{"value":"2025-02-27","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-03-22","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-04-03","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70075"}}