{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,1]],"date-time":"2026-04-01T18:46:03Z","timestamp":1775069163284,"version":"3.50.1"},"reference-count":37,"publisher":"Elsevier BV","issue":"1","license":[{"start":{"date-parts":[[2016,1,1]],"date-time":"2016-01-01T00:00:00Z","timestamp":1451606400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2016,1,1]],"date-time":"2016-01-01T00:00:00Z","timestamp":1451606400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Journal of Electrocardiology"],"published-print":{"date-parts":[[2016,1]]},"DOI":"10.1016\/j.jelectrocard.2015.08.031","type":"journal-article","created":{"date-parts":[[2015,8,22]],"date-time":"2015-08-22T20:16:43Z","timestamp":1440274603000},"page":"69-75","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":7,"title":["Discordant vs. concordant left bundle branch block: A potential clinical significance"],"prefix":"10.1016","volume":"49","author":[{"given":"Jalkh","family":"Khalil","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abi Saleh","family":"Bernard","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Khoury","family":"Maurice","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yousef","family":"Zaheer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Refaat","family":"Marwan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rebeiz","family":"Abdallah","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alam","family":"Samir","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0541-4926","authenticated-orcid":false,"given":"Skouri","family":"Hadi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"issue":"3","key":"10.1016\/j.jelectrocard.2015.08.031_bb0005","doi-asserted-by":"crossref","first-page":"423","DOI":"10.1161\/01.CIR.49.3.423","article-title":"Paradoxical motion of interventricular septum in left bundle branch block","volume":"49","author":"Abbasi","year":"1974","journal-title":"Circulation"},{"issue":"6","key":"10.1016\/j.jelectrocard.2015.08.031_bb0010","doi-asserted-by":"crossref","first-page":"588","DOI":"10.1161\/01.CIR.98.6.588","article-title":"Asynchronous electrical activation induces asymmetrical hypertrophy of the left ventricular wall","volume":"98","author":"van Oosterhout","year":"1998","journal-title":"Circulation"},{"issue":"14","key":"10.1016\/j.jelectrocard.2015.08.031_bb0015","doi-asserted-by":"crossref","first-page":"1185","DOI":"10.1016\/S0002-9149(96)00160-9","article-title":"Natural history of isolated bundle branch block","volume":"77","author":"Fahy","year":"1996","journal-title":"Am J Cardiol"},{"issue":"22","key":"10.1016\/j.jelectrocard.2015.08.031_bb0020","doi-asserted-by":"crossref","first-page":"2494","DOI":"10.1161\/01.CIR.98.22.2494","article-title":"Bundle-branch block in a general male population: the study of men born 1913","volume":"98","author":"Eriksson","year":"1998","journal-title":"Circulation"},{"issue":"1","key":"10.1016\/j.jelectrocard.2015.08.031_bb0025","doi-asserted-by":"crossref","first-page":"7","DOI":"10.1016\/j.ejheart.2006.04.011","article-title":"Left bundle branch block as a risk factor for progression to heart failure","volume":"9","author":"Zannad","year":"2007","journal-title":"Eur J Heart Fail"},{"issue":"7","key":"10.1016\/j.jelectrocard.2015.08.031_bb0030","doi-asserted-by":"crossref","first-page":"696","DOI":"10.1016\/j.ejheart.2008.05.001","article-title":"The prevalence and incidence of left bundle branch block in ambulant patients with chronic heart failure","volume":"10","author":"Clark","year":"2008","journal-title":"Eur J Heart Fail"},{"issue":"3","key":"10.1016\/j.jelectrocard.2015.08.031_bb0035","doi-asserted-by":"crossref","first-page":"398","DOI":"10.1067\/mhj.2002.121264","article-title":"Left bundle-branch block is associated with increased 1-year sudden and total mortality rate in 5517 outpatients with congestive heart failure: a report from the Italian network on congestive heart failure","volume":"143","author":"Baldasseroni","year":"2002","journal-title":"Am Heart J"},{"issue":"5","key":"10.1016\/j.jelectrocard.2015.08.031_bb0040","doi-asserted-by":"crossref","first-page":"671","DOI":"10.1016\/j.amjcard.2013.04.040","article-title":"QRS duration on electrocardiography and cardiovascular mortality (from the National Health and Nutrition Examination Survey-III)","volume":"112","author":"Badheka","year":"2013","journal-title":"Am J Cardiol"},{"issue":"24","key":"10.1016\/j.jelectrocard.2015.08.031_bb0045","doi-asserted-by":"crossref","first-page":"1845","DOI":"10.1056\/NEJMoa013168","article-title":"Cardiac resynchronization in chronic heart failure","volume":"346","author":"Abraham","year":"2002","journal-title":"N Engl J Med"},{"issue":"20","key":"10.1016\/j.jelectrocard.2015.08.031_bb0050","doi-asserted-by":"crossref","first-page":"2685","DOI":"10.1001\/jama.289.20.2685","article-title":"Combined cardiac resynchronization and implantable cardioversion defibrillation in advanced chronic heart failure: the MIRACLE ICD Trial","volume":"289","author":"Young","year":"2003","journal-title":"JAMA"},{"issue":"12","key":"10.1016\/j.jelectrocard.2015.08.031_bb0055","doi-asserted-by":"crossref","first-page":"873","DOI":"10.1056\/NEJM200103223441202","article-title":"Effects of multisite biventricular pacing in patients with heart failure and intraventricular conduction delay","volume":"344","author":"Cazeau","year":"2001","journal-title":"N Engl J Med"},{"issue":"12","key":"10.1016\/j.jelectrocard.2015.08.031_bb0060","doi-asserted-by":"crossref","first-page":"2026","DOI":"10.1016\/S0735-1097(02)01895-8","article-title":"Long-term clinical effect of hemodynamically optimized cardiac resynchronization therapy in patients with heart failure and ventricular conduction delay","volume":"39","author":"Auricchio","year":"2002","journal-title":"J Am Coll Cardiol"},{"issue":"4","key":"10.1016\/j.jelectrocard.2015.08.031_bb0065","doi-asserted-by":"crossref","first-page":"320","DOI":"10.1016\/j.cardfail.2009.12.005","article-title":"Concordant versus discordant left bundle branch block in heart failure patients: novel clinical value of an old electrocardiographic diagnosis","volume":"16","author":"Padeletti","year":"2010","journal-title":"J Card Fail"},{"issue":"6","key":"10.1016\/j.jelectrocard.2015.08.031_bb0070","doi-asserted-by":"crossref","first-page":"927","DOI":"10.1016\/j.amjcard.2010.11.010","article-title":"Defining left bundle branch block in the era of cardiac resynchronization therapy","volume":"107","author":"Strauss","year":"2011","journal-title":"Am J Cardiol"},{"issue":"4","key":"10.1016\/j.jelectrocard.2015.08.031_bb0075","first-page":"170","article-title":"Homophasic left branch block: clinical significance and criteria of evaluation","volume":"49","author":"Giusti","year":"1965","journal-title":"Cuore Circ"},{"issue":"11","key":"10.1016\/j.jelectrocard.2015.08.031_bb0080","doi-asserted-by":"crossref","first-page":"976","DOI":"10.1016\/j.jacc.2008.12.013","volume":"53","author":"Surawicz","year":"2009","journal-title":"J Am Coll Cardiol"},{"issue":"6","key":"10.1016\/j.jelectrocard.2015.08.031_bb0085","doi-asserted-by":"crossref","first-page":"1081","DOI":"10.1161\/01.CIR.34.6.1081","article-title":"An epidemiological assessment of bundle-branch block","volume":"34","author":"Edmands","year":"1966","journal-title":"Circulation"},{"issue":"5","key":"10.1016\/j.jelectrocard.2015.08.031_bb0090","doi-asserted-by":"crossref","first-page":"663","DOI":"10.1001\/archinte.1951.03810050039004","article-title":"A mortality study in bundle branch block","volume":"87","author":"Rodstein","year":"1951","journal-title":"AMA Arch Intern Med"},{"issue":"10","key":"10.1016\/j.jelectrocard.2015.08.031_bb0095","doi-asserted-by":"crossref","first-page":"1075","DOI":"10.1093\/oxfordjournals.eurheartj.a062172","article-title":"Left bundle branch block: prevalence, incidence, follow-up and outcome","volume":"8","author":"Hardarson","year":"1987","journal-title":"Eur Heart J"},{"issue":"3","key":"10.1016\/j.jelectrocard.2015.08.031_bb0100","doi-asserted-by":"crossref","first-page":"477","DOI":"10.1161\/01.CIR.51.3.477","article-title":"A clinical and follow-up study of right and left bundle branch block","volume":"51","author":"Rotman","year":"1975","journal-title":"Circulation"},{"issue":"5","key":"10.1016\/j.jelectrocard.2015.08.031_bb0105","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1016\/0002-8703(78)90205-3","article-title":"Intraventricular conduction disturbances: a review of prevalence, etiology, and progression for ten years within a stable population of Israeli adult males","volume":"96","author":"Siegman-Igra","year":"1978","journal-title":"Am Heart J"},{"issue":"3","key":"10.1016\/j.jelectrocard.2015.08.031_bb0110","doi-asserted-by":"crossref","first-page":"303","DOI":"10.7326\/0003-4819-90-3-303","article-title":"Newly acquired left bundle-branch block: the Framingham study","volume":"90","author":"Schneider","year":"1979","journal-title":"Ann Intern Med"},{"issue":"10","key":"10.1016\/j.jelectrocard.2015.08.031_bb0115","doi-asserted-by":"crossref","first-page":"2424","DOI":"10.1161\/01.CIR.94.10.2424","article-title":"Incidence and clinical relevance of the occurrence of bundle-branch block in patients treated with thrombolytic therapy","volume":"94","author":"Newby","year":"1996","journal-title":"Circulation"},{"issue":"2","key":"10.1016\/j.jelectrocard.2015.08.031_bb0120","doi-asserted-by":"crossref","first-page":"150","DOI":"10.1016\/S0003-4975(10)62027-9","article-title":"Natural history and determinants of conduction defects following coronary artery bypass surgery","volume":"44","author":"Baerman","year":"1987","journal-title":"Ann Thorac Surg"},{"issue":"8","key":"10.1016\/j.jelectrocard.2015.08.031_bb0125","doi-asserted-by":"crossref","first-page":"1008","DOI":"10.1016\/j.amjcard.2004.06.055","article-title":"Prognostic significance of newly acquired bundle branch block after aortic valve replacement","volume":"94","author":"El-Khally","year":"2004","journal-title":"Am J Cardiol"},{"issue":"4","key":"10.1016\/j.jelectrocard.2015.08.031_bb0130","doi-asserted-by":"crossref","first-page":"845","DOI":"10.1161\/01.CIR.79.4.845","article-title":"Functional abnormalities in isolated left bundle branch block. The effect of interventricular asynchrony","volume":"79","author":"Grines","year":"1989","journal-title":"Circulation"},{"issue":"11","key":"10.1016\/j.jelectrocard.2015.08.031_bb0135","doi-asserted-by":"crossref","first-page":"1075","DOI":"10.1067\/mje.2001.115655","article-title":"Effect of the isolated left bundle branch block on systolic and diastolic functions of left ventricle","volume":"14","author":"Ozdemir","year":"2001","journal-title":"J Am Soc Echocardiogr"},{"issue":"2","key":"10.1016\/j.jelectrocard.2015.08.031_bb0140","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1054\/jcaf.2003.19","article-title":"Isolated bundle branch block and left ventricular dysfunction","volume":"9","author":"Lee","year":"2003","journal-title":"J Card Fail"},{"issue":"1","key":"10.1016\/j.jelectrocard.2015.08.031_bb0145","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1016\/0002-9149(84)90691-X","article-title":"Alteration of left ventricular performance by left bundle branch block simulated with atrioventricular sequential pacing","volume":"53","author":"Askenazi","year":"1984","journal-title":"Am J Cardiol"},{"issue":"6","key":"10.1016\/j.jelectrocard.2015.08.031_bb0150","doi-asserted-by":"crossref","first-page":"443","DOI":"10.1136\/hrt.66.6.443","article-title":"Effect of left bundle branch block on diastolic function in dilated cardiomyopathy","volume":"66","author":"Xiao","year":"1991","journal-title":"Br Heart J"},{"issue":"9","key":"10.1016\/j.jelectrocard.2015.08.031_bb0155","doi-asserted-by":"crossref","first-page":"999","DOI":"10.1161\/01.CIR.100.9.999","article-title":"Mechanisms and models in heart failure: a combinatorial approach","volume":"100","author":"Mann","year":"1999","journal-title":"Circulation"},{"issue":"11 Pt 2","key":"10.1016\/j.jelectrocard.2015.08.031_bb0160","doi-asserted-by":"crossref","first-page":"1974","DOI":"10.1111\/j.1540-8159.1994.tb03783.x","article-title":"Four chamber pacing in dilated cardiomyopathy","volume":"17","author":"Cazeau","year":"1994","journal-title":"Pacing Clin Electrophysiol"},{"issue":"7","key":"10.1016\/j.jelectrocard.2015.08.031_bb0165","doi-asserted-by":"crossref","first-page":"822","DOI":"10.1161\/CIRCULATIONAHA.112.097709","article-title":"Effect of QRS duration and morphology on cardiac resynchronization therapy outcomes in mild heart failure: results from the Resynchronization Reverses Remodeling in Systolic Left Ventricular Dysfunction (REVERSE) study","volume":"126","author":"Gold","year":"2012","journal-title":"Circulation"},{"issue":"29","key":"10.1016\/j.jelectrocard.2015.08.031_bb0170","doi-asserted-by":"crossref","first-page":"2281","DOI":"10.1093\/eurheartj\/eht150","volume":"34","author":"Brignole","year":"2013","journal-title":"Eur Heart J"},{"issue":"14","key":"10.1016\/j.jelectrocard.2015.08.031_bb0175","doi-asserted-by":"crossref","first-page":"1787","DOI":"10.1093\/eurheartj\/ehs104","volume":"33","author":"McMurray","year":"2012","journal-title":"Eur Heart J"},{"issue":"6","key":"10.1016\/j.jelectrocard.2015.08.031_bb0180","doi-asserted-by":"crossref","first-page":"635","DOI":"10.1016\/j.jelectrocard.2012.09.001","article-title":"Differentiation between left bundle branch block and left ventricular hypertrophy: implications for cardiac resynchronization therapy","volume":"45","author":"Strauss","year":"2012","journal-title":"J Electrocardiol"},{"key":"10.1016\/j.jelectrocard.2015.08.031_bb0185","series-title":"Marriott's practical electrocardiography","author":"Wagner","year":"1994"}],"container-title":["Journal of Electrocardiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0022073615002885?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0022073615002885?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,19]],"date-time":"2025-09-19T12:26:05Z","timestamp":1758284765000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0022073615002885"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,1]]},"references-count":37,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2016,1]]}},"alternative-id":["S0022073615002885"],"URL":"https:\/\/doi.org\/10.1016\/j.jelectrocard.2015.08.031","relation":{},"ISSN":["0022-0736"],"issn-type":[{"value":"0022-0736","type":"print"}],"subject":[],"published":{"date-parts":[[2016,1]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Discordant vs. concordant left bundle branch block: A potential clinical significance","name":"articletitle","label":"Article Title"},{"value":"Journal of Electrocardiology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.jelectrocard.2015.08.031","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2016 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}