{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T07:57:39Z","timestamp":1773647859611,"version":"3.50.1"},"reference-count":8,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2025,11,25]],"date-time":"2025-11-25T00:00:00Z","timestamp":1764028800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,11,25]],"date-time":"2025-11-25T00:00:00Z","timestamp":1764028800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pacing Clinical Electrophis"],"published-print":{"date-parts":[[2026,2]]},"abstract":"ABSTRACT<\/jats:title>\n \n Background<\/jats:title>\n Right ventricular (RV) pacing typically produces left bundle branch block (LBBB) morphology. Right bundle branch block (RBBB) patterns during RV lead placement raise concerns for malpositioning.<\/jats:p>\n <\/jats:sec>\n \n Case Presentation<\/jats:title>\n A 67\u2010year\u2010old male with symptomatic atrioventricular dysfunction and bi\u2010fascicular block underwent dual\u2010chamber pacemaker implantation. During RV lead testing, unexpected RBBB morphology was noted despite correct positioning.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n Fluoroscopic verification excluded malpositioning. The Pseudo\u2010RBBB pattern most likely resulted from physiological conduction through existing right bundle disease, where impulses travelled preferentially via septal pathways to activate the left ventricle.<\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n RBBB morphology during RV pacing requires systematic evaluation to exclude malpositioning but may represent physiological conduction in patients with or without existing conduction disease.<\/jats:p>\n <\/jats:sec>","DOI":"10.1111\/pace.70090","type":"journal-article","created":{"date-parts":[[2025,11,25]],"date-time":"2025-11-25T13:27:58Z","timestamp":1764077278000},"page":"108-112","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Pseudo\u2010Right Bundle Branch Block Pattern During Conventional Right Ventricular Lead Pacing: All That Glitters Is Not Gold"],"prefix":"10.1111","volume":"49","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4596-0879","authenticated-orcid":false,"given":"Anupam Canchi Arun","family":"Rao","sequence":"first","affiliation":[{"name":"Department of Cardiology Canberra Health Services Canberra Australian Capital Territory Australia"},{"name":"School of Medicine and Psychology Australian National University Canberra Australian Capital Territory Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0849-4896","authenticated-orcid":false,"given":"Sam","family":"Mirzaee","sequence":"additional","affiliation":[{"name":"Department of Cardiology Canberra Health Services Canberra Australian Capital Territory Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,11,25]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.hrthm.2019.06.016"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1378\/chest.87.4.517"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(67)90036-1"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccep.2016.07.003"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.3389\/fcvm.2022.1006966"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.3390\/jcdd9100362"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9149(99)80226-4"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccep.2014.05.016"}],"container-title":["Pacing and Clinical Electrophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/pace.70090","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/pace.70090","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/pace.70090","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T07:11:59Z","timestamp":1773645119000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/pace.70090"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,25]]},"references-count":8,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026,2]]}},"alternative-id":["10.1111\/pace.70090"],"URL":"https:\/\/doi.org\/10.1111\/pace.70090","archive":["Portico"],"relation":{},"ISSN":["0147-8389","1540-8159"],"issn-type":[{"value":"0147-8389","type":"print"},{"value":"1540-8159","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,11,25]]},"assertion":[{"value":"2025-07-25","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-11-03","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-11-25","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}