{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T13:44:16Z","timestamp":1780667056704,"version":"3.54.1"},"reference-count":20,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2021,9,22]],"date-time":"2021-09-22T00:00:00Z","timestamp":1632268800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2021,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>Data on ablation for atypical recurrent atrioventricular nodal reentry tachycardia (AVNRT) and long\u2010term follow\u2010up are generally sparse. Furthermore, the rate of recurrence and safety of cryoablation for atypical AVNRT has not been established. We compared patients cryoablated for atypical AVNRT and typical AVNRT during long\u2010term follow\u2010up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>All patients (<jats:italic>n<\/jats:italic>\u2009=\u20092612) who underwent catheter ablation for AVNRT at the Karolinska University Hospital between January 2009 and August 2019 were analyzed. A total of 91 patients undergoing first\u2010time cryoablation for atypical AVNRT were included. A control group with first\u2010time cryoablation for typical AVNRT was matched in a 1:1 ratio. Patients were followed\u2010up for recurrences for a median of 5.0 years (interquartile range: 3.1\u20137.5 years).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>After 5 years, AVNRT recurrence occurred in 10 patients (11.0%) in the atypical AVNRT group and in 8 patients (8.8%) in the typical AVNRT group (hazard ratio: 1.31 [95% confidence interval: 0.52\u20133.32]; <jats:italic>p<\/jats:italic>\u2009=\u20090.568). The duration of the index procedure was significantly longer for atypical compared to typical AVNRT ablation (132.1\u2009\u00b1\u200949.2\u2009min vs. 110.1\u2009\u00b1\u200938.8\u2009min; <jats:italic>p<\/jats:italic>\u2009=\u20090.001). Transient AV blocks occurred in a similar fashion in the atypical compared to typical group (11 [12.1%] vs. 4 [4.9%]; <jats:italic>p<\/jats:italic>\u2009=\u20090.103). However, no ablation induced persistent AV block developed in either group.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Cryoablation for atypical AVNRT showed similar rate of recurrences and safety compared to typical AVNRT during long\u2010term follow\u2010up.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.15244","type":"journal-article","created":{"date-parts":[[2021,9,18]],"date-time":"2021-09-18T05:46:18Z","timestamp":1631943978000},"page":"2971-2978","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Cryoablation of atypical atrioventricular nodal reentry tachycardia"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8145-0414","authenticated-orcid":false,"given":"Gesa","family":"von Olshausen","sequence":"first","affiliation":[{"name":"Department of Cardiology Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anette","family":"Jemtr\u00e9n","sequence":"additional","affiliation":[{"name":"Department of Medicine Huddinge Karolinska Institutet  Stockholm Sweden"},{"name":"Department of Cardiology St. G\u00f6ran's Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonas","family":"Schwieler","sequence":"additional","affiliation":[{"name":"Department of Cardiology Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jari","family":"Tapanainen","sequence":"additional","affiliation":[{"name":"Department of Cardiology Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tara","family":"Bourke","sequence":"additional","affiliation":[{"name":"Department of Cardiology Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6431-8358","authenticated-orcid":false,"given":"Astrid","family":"Paul\u2010Nordin","sequence":"additional","affiliation":[{"name":"Department of Cardiology Karolinska University Hospital  Stockholm Sweden"},{"name":"Department of Medicine Huddinge Karolinska Institutet  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lina","family":"Benson","sequence":"additional","affiliation":[{"name":"Department of Medicine Solna Karolinska Institutet  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ott","family":"Saluveer","sequence":"additional","affiliation":[{"name":"Department of Cardiology Karolinska University Hospital  Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00f6ran","family":"Kenneb\u00e4ck","sequence":"additional","affiliation":[{"name":"Department of Cardiology Karolinska 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Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,9,22]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehz467"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/europace\/euu130"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9149(02)02285-3"},{"key":"e_1_2_10_5_1","first-page":"602","article-title":"Catheter ablation vs. antiarrhythmic drug therapy in patients with symptomatic atrioventricular nodal re\u2010entrant tachycardia: a randomized, controlled trial","volume":"19","author":"Katritsis DG","year":"2017","journal-title":"Europace"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9149(98)00416-0"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1093\/europace\/euu387"},{"key":"e_1_2_10_8_1","first-page":"1038","article-title":"Cryoablation of atrioventricular nodal re\u2010entrant 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