{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T07:34:23Z","timestamp":1779348863143,"version":"3.51.4"},"reference-count":25,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2019,8,22]],"date-time":"2019-08-22T00:00:00Z","timestamp":1566432000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2019,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Left bundle branch block (LBBB) with superior axis is common in patients with idiopathic\u2010ventricular arrhythmia (VA) originating from the tricuspid annulus (TA) and rarely from the cardiac basal crux and mitral annulus (MA). We described the electrocardiography and electrophysiological findings of idiopathic\u2010VA presenting with LBBB and superior axis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and Results<\/jats:title><jats:p>We described 42 idiopathic\u2010VA patients who had an LBBB and superior axis; 15 basal crux\u2010VA, 17 TA\u2010VA, and 10 MA\u2010VA. No patient had a structural heart disease. Among patients with idiopathic\u2010VA referred for ablation, we investigated the electrocardiogram and clinical characteristics of basal crux\u2010VA as compared with other LBBB and superior axis\u2010VA. The left ventricular ejection fraction with MA\u2010VA was significantly lower in comparison with basal crux\u2010VA (<jats:italic>P<\/jats:italic>\u2009=\u2009.01). All patients had a positive R wave in lead I and aVL. The maximum deflection index with basal crux\u2010VA was significantly higher in comparison with TA\u2010VA or MA\u2010VA (<jats:italic>P<\/jats:italic>\u2009=\u2009.01). Patients with basal crux\u2010VA presented with QS wave in lead II more frequently as compared with TA\u2010VA or MA\u2010VA (<jats:italic>P<\/jats:italic>\u2009=\u2009.001). All MA\u2010VA patients had Rs wave in V6, and basal crux\u2010VA, and TA\u2010VA patients had a monophasic R wave or Rs wave in V6. Basal crux\u2010VA patients underwent ablation in the middle cardiac vein (MCV) or coronary sinus (success rate: 94%, recurrence rate: 6%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>We could distinguish basal crux\u2010VA, TA\u2010VA, and MA\u2010VA, using a combination of clinical and electrocardiographic findings. These findings might be useful for counseling patients about an ablation strategy. Ablation via the MCV is effective for eliminating basal crux\u2010VA.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jce.14103","type":"journal-article","created":{"date-parts":[[2019,8,8]],"date-time":"2019-08-08T04:39:40Z","timestamp":1565239180000},"page":"1914-1922","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Idiopathic basal crux ventricular arrhythmias with left bundle branch block and superior axis: A comparison with inferior\u2010septal valvular arrhythmias"],"prefix":"10.1111","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4614-6462","authenticated-orcid":false,"given":"Mitsuharu","family":"Kawamura","sequence":"first","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuhei","family":"Arai","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshihiko","family":"Gokan","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kosuke","family":"Yoshikawa","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ko","family":"Ogawa","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akinori","family":"Ochi","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuta","family":"Chiba","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshimi","family":"Onishi","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yumi","family":"Munetsugu","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyuki","family":"Ito","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tatsuya","family":"Onuki","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Youichi","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshiro","family":"Shinke","sequence":"additional","affiliation":[{"name":"Division of Cardiology Showa University School of Medicine Tokyo Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,8,22]]},"reference":[{"key":"e_1_2_6_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(95)90215-5"},{"key":"e_1_2_6_1_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2006.11.012"},{"key":"e_1_2_6_1_4_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.98.15.1525"},{"key":"e_1_2_6_1_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(97)00004-1"},{"key":"e_1_2_6_1_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(01)01127-5"},{"key":"e_1_2_6_1_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(01)01767-3"},{"key":"e_1_2_6_1_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.2009.01462.x"},{"key":"e_1_2_6_1_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8159.2012.03488.x"},{"key":"e_1_2_6_1_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2004.12.014"},{"key":"e_1_2_6_1_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2004.12.025"},{"key":"e_1_2_6_1_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2008.09.029"},{"key":"e_1_2_6_1_13_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.611640"},{"key":"e_1_2_6_1_14_1","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCEP.114.001704"},{"key":"e_1_2_6_1_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2015.02.029"},{"key":"e_1_2_6_1_16_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1540-8167.2001.00210.x"},{"key":"e_1_2_6_1_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijcard.2008.11.205"},{"key":"e_1_2_6_1_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(91)90354-N"},{"key":"e_1_2_6_1_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(92)91276-A"},{"key":"e_1_2_6_1_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2005.01.023"},{"key":"e_1_2_6_1_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2013.02.007"},{"key":"e_1_2_6_1_22_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.2005.40749.x"},{"key":"e_1_2_6_1_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2006.09.025"},{"key":"e_1_2_6_1_24_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2010.11.044"},{"key":"e_1_2_6_1_25_1","doi-asserted-by":"publisher","DOI":"10.1253\/circj.CJ-16-1263"},{"key":"e_1_2_6_1_26_1","doi-asserted-by":"publisher","DOI":"10.1111\/jce.12391"}],"container-title":["Journal of Cardiovascular Electrophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fjce.14103","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jce.14103","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/jce.14103","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jce.14103","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,6]],"date-time":"2023-09-06T23:02:13Z","timestamp":1694041333000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/jce.14103"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,8,22]]},"references-count":25,"journal-issue":{"issue":"10","published-print":{"date-parts":[[2019,10]]}},"alternative-id":["10.1111\/jce.14103"],"URL":"https:\/\/doi.org\/10.1111\/jce.14103","archive":["Portico"],"relation":{},"ISSN":["1045-3873","1540-8167"],"issn-type":[{"value":"1045-3873","type":"print"},{"value":"1540-8167","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,8,22]]},"assertion":[{"value":"2019-01-14","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-08-05","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-08-22","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}