{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T23:53:04Z","timestamp":1782863584540,"version":"3.54.5"},"reference-count":16,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2006,9,21]],"date-time":"2006-09-21T00:00:00Z","timestamp":1158796800000},"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":[[2006,12]]},"abstract":"<jats:p>The abnormal development of the tricuspid valve in patients with Ebstein's anomaly results in several activation abnormalities including delayed intraatrial conduction, right bundle branch block (RBBB), and ventricular preexcitation. The aim of the present study was to define the ECG characteristics before and after ablation of an accessory A\u2010V pathway (AP) in patients with Ebstein's anomaly.<\/jats:p><jats:p> <jats:italic>Methods:<\/jats:italic> A series of 226 consecutive patients with Ebstein's anomaly was studied. Sixty\u2010four patients (28%) had documented tachycardia. Thirty\u2010three patients with recurrent tachycardia were found to have a single right\u2010sided AP that was successfully ablated (study group). Thirty patients without tachycardia served as the control group.<\/jats:p><jats:p> <jats:italic>Results:<\/jats:italic> Only 21 of 33 patients (62%) had a typical ECG pattern of preexcitation. In addition, none of the patients had an ECG pattern of RBBB during sinus rhythm. In contrast, 28 of 30 (93%) patients in the control group had RBBB (P &lt; 0.001). Radiofrequency catheter ablation resulted in appearance of RBBB in 31 of 33 (94%) patients. The absence of RBBB in patients with Ebstein's anomaly and recurrent tachycardia had a 98% sensitivity and 92% specificity for the diagnosis of an AP. The positive predictive value was 91% (0.77, 0.97 CI 95%) and the negative predictive value was 98% (0.85, 0.99 CI 95%).<\/jats:p><jats:p> <jats:italic>Conclusion:<\/jats:italic> One\u2010third of patients with Ebstein's anomaly and symptomatic tachyarrhythmias have minimal or absent ECG features of ventricular preexcitation. In these patients, the absence of RBBB pattern is a strong predictor of an AP.<\/jats:p>","DOI":"10.1111\/j.1540-8167.2006.00617.x","type":"journal-article","created":{"date-parts":[[2006,9,21]],"date-time":"2006-09-21T15:32:28Z","timestamp":1158852748000},"page":"1332-1336","source":"Crossref","is-referenced-by-count":63,"title":["Electrocardiographic Characteristics of Patients with Ebstein's Anomaly Before and After Ablation of an Accessory Atrioventricular Pathway"],"prefix":"10.1111","volume":"17","author":[{"given":"PEDRO","family":"ITURRALDE","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"SANTIAGO","family":"NAVA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"GABRIEL","family":"S\u00c1LICA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"ARGELIA","family":"MEDEIROS","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"MANLIO F.","family":"M\u00c1RQUEZ","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"LUIS","family":"COLIN","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"DIANA","family":"VICTORIA","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"ALFREDO","family":"DE MICHELI","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"MARIO D.","family":"GONZALEZ","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,9,21]]},"reference":[{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(55)90250-7"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.17.5.882"},{"key":"e_1_2_8_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(82)90048-0"},{"key":"e_1_2_8_5_2","first-page":"309","article-title":"Anomal\u00eda de Ebstein con s\u00edndrome de Wolf\u2010Parkinson\u2010White","volume":"61","author":"Galv\u00e1n O","year":"1991","journal-title":"Arch Inst Cardiol Mex"},{"key":"e_1_2_8_6_2","first-page":"17","article-title":"Anomalia de Ebstein perfil cl\u00ednico en 174 pacientes","volume":"69","author":"Attie F","year":"1999","journal-title":"Arch Inst Cardiol Mex"},{"key":"e_1_2_8_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-0736(96)80093-8"},{"key":"e_1_2_8_8_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.52.6.987"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.94.3.376"},{"key":"e_1_2_8_10_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8159.1994.tb01444.x"},{"key":"e_1_2_8_11_2","first-page":"174","article-title":"Morphologic spectrum of Ebstein's anomaly of the heart. Review","volume":"54","author":"Anderson KR","year":"1979","journal-title":"Mayo Clin Proc"},{"key":"e_1_2_8_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9149(72)90503-6"},{"key":"e_1_2_8_13_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM200002033420507"},{"key":"e_1_2_8_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/0735-1097(92)90292-U"},{"key":"e_1_2_8_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8167.1998.tb00113.x"},{"key":"e_1_2_8_16_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8159.2000.tb00660.x"},{"key":"e_1_2_8_17_2","doi-asserted-by":"publisher","DOI":"10.1017\/S1047951100009689"}],"container-title":["Journal of Cardiovascular Electrophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1540-8167.2006.00617.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1540-8167.2006.00617.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,12]],"date-time":"2023-10-12T02:35:53Z","timestamp":1697078153000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1540-8167.2006.00617.x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,9,21]]},"references-count":16,"journal-issue":{"issue":"12","published-print":{"date-parts":[[2006,12]]}},"alternative-id":["10.1111\/j.1540-8167.2006.00617.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1540-8167.2006.00617.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":[[2006,9,21]]}}}