{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T20:14:48Z","timestamp":1791231288562,"version":"4.1.0"},"reference-count":23,"publisher":"Elsevier BV","issue":"4","license":[{"start":{"date-parts":[[2024,4,1]],"date-time":"2024-04-01T00:00:00Z","timestamp":1711929600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2024,4,1]],"date-time":"2024-04-01T00:00:00Z","timestamp":1711929600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2023,12,27]],"date-time":"2023-12-27T00:00:00Z","timestamp":1703635200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","heartrhythmjournal.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Heart Rhythm"],"published-print":{"date-parts":[[2024,4]]},"DOI":"10.1016\/j.hrthm.2023.12.014","type":"journal-article","created":{"date-parts":[[2023,12,26]],"date-time":"2023-12-26T11:33:48Z","timestamp":1703590428000},"page":"436-444","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":2,"title":["R-R\u02b9 interval in the left bundle branch block predicts long-term outcomes after cardiac resynchronization therapy by estimating greater mechanical dyssynchrony and viable myocardium"],"prefix":"10.1016","volume":"21","author":[{"given":"Nozomi","family":"Kodama","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mikiko","family":"Nakagawa","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yumi","family":"Ishii","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kunio","family":"Yufu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Syuichiro","family":"Yamauchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ena","family":"Yamamoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miho","family":"Miyoshi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ichitaro","family":"Abe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hidekazu","family":"Kondo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akira","family":"Fukui","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideki","family":"Satoh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kumiko","family":"Akiyoshi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tomoko","family":"Fukuda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuji","family":"Shinohara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasushi","family":"Teshima","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naohiko","family":"Takahashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"key":"10.1016\/j.hrthm.2023.12.014_bib1","doi-asserted-by":"crossref","DOI":"10.1253\/circj.CJ-10-1268","article-title":"Non-responders to cardiac resynchronization therapy: the magnitude of the problem and the issues","volume":"75","author":"Auricchio","year":"2011","journal-title":"Circ J"},{"key":"10.1016\/j.hrthm.2023.12.014_bib2","doi-asserted-by":"crossref","first-page":"1813","DOI":"10.1253\/circj.CJ-17-1383","article-title":"Effect of QRS morphology and duration on clinical outcomes after cardiac resynchronization therapy\u2014analysis of Japanese Multicenter Registry","volume":"82","author":"Oka","year":"2018","journal-title":"Cir J"},{"key":"10.1016\/j.hrthm.2023.12.014_bib3","doi-asserted-by":"crossref","first-page":"2588","DOI":"10.1016\/j.jacc.2019.09.043","article-title":"Evaluation, management, and outcomes of patients poorly responsive to cardiac resynchronization device therapy","volume":"74","author":"Varma","year":"2019","journal-title":"J Am Coll Cardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib4","doi-asserted-by":"crossref","first-page":"1329","DOI":"10.1056\/NEJMoa0906431","article-title":"Cardiac-resynchronization therapy for the prevention of heart-failure events","volume":"361","author":"Moss","year":"2009","journal-title":"N Engl J Med"},{"key":"10.1016\/j.hrthm.2023.12.014_bib5","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"},{"key":"10.1016\/j.hrthm.2023.12.014_bib6","doi-asserted-by":"crossref","first-page":"592","DOI":"10.1016\/j.jacc.2012.03.059","article-title":"Differential response to cardiac resynchronization therapy and clinical outcomes according to QRS morphology and QRS duration","volume":"60","author":"Dupont","year":"2012","journal-title":"J Am Coll Cardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib7","doi-asserted-by":"crossref","first-page":"1261","DOI":"10.1016\/S0735-1097(85)80335-1","article-title":"Criteria for intraventricular conduction disturbances and pre-excitation. World Health Organizational\/International Society and Federation for Cardiology Task Force Ad Hoc","volume":"5","author":"Willems","year":"1985","journal-title":"J Am Coll Cardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib8","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1016\/j.jelectrocard.2008.07.011","article-title":"The QRS complex\u2014a biomarker that \"images\" the heart: QRS scores to quantify myocardial scar in the presence of normal and abnormal ventricular conduction","volume":"42","author":"Strauss","year":"2009","journal-title":"J Electrocardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib9","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"},{"key":"10.1016\/j.hrthm.2023.12.014_bib10","doi-asserted-by":"crossref","first-page":"1070","DOI":"10.1093\/europace\/eut206","volume":"15","author":"Brignole","year":"2013","journal-title":"Europace"},{"key":"10.1016\/j.hrthm.2023.12.014_bib11","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"},{"key":"10.1016\/j.hrthm.2023.12.014_bib12","doi-asserted-by":"crossref","first-page":"48","DOI":"10.1093\/eurheartj\/eht294","article-title":"Dynamic relationship of left-ventricular dyssynchrony and contractile reserve in patients undergoing cardiac resynchronization therapy","volume":"35","author":"Stankovic","year":"2014","journal-title":"Eur Heart J"},{"key":"10.1016\/j.hrthm.2023.12.014_bib13","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1093\/ehjci\/jev288","article-title":"Relationship of visually assessed apical rocking and septal flash to response and long-term survival following cardiac resynchronization therapy (PREDICT-CRT)","volume":"17","author":"Stankovic","year":"2016","journal-title":"Eur Heart J Cardiovasc Imaging"},{"key":"10.1016\/j.hrthm.2023.12.014_bib14","doi-asserted-by":"crossref","first-page":"e1","DOI":"10.1093\/europace\/euw445","article-title":"Refining success of cardiac resynchronization therapy using a simple score predicting the amount of reverse ventricular remodelling: results from the Markers and Response to CRT (MARC) study","volume":"20","author":"Maass","year":"2018","journal-title":"Europace"},{"key":"10.1016\/j.hrthm.2023.12.014_bib15","doi-asserted-by":"crossref","first-page":"620","DOI":"10.5152\/akd.2014.5607","article-title":"Apical transverse motion is associated with speckle-tracking radial dyssynchrony in patients with non-ischemic dilated cardiomyopathy","volume":"15","author":"G\u00fcrel","year":"2015","journal-title":"Anatol J Cardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib16","doi-asserted-by":"crossref","first-page":"1690","DOI":"10.1093\/eurheartj\/ehq213","article-title":"Dyssynchrony by speckle-tracking echocardiography and response to cardiac resynchronization therapy: results of the Speckle Tracking and Resynchronization (STAR) study","volume":"31","author":"Tanaka","year":"2010","journal-title":"Eur Heart J"},{"key":"10.1016\/j.hrthm.2023.12.014_bib17","doi-asserted-by":"crossref","first-page":"1509","DOI":"10.1016\/j.jacc.2011.12.030","article-title":"Targeted left ventricular lead placement to guide cardiac resynchronization therapy","volume":"59","author":"Khan","year":"2012","journal-title":"J Am Coll Cardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib18","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1093\/eurheartj\/ehl379","article-title":"Impact of viability and scar tissue on response to cardiac resynchronization therapy in ischaemic heart failure patients","volume":"28","author":"Ypenburg","year":"2006","journal-title":"Eur Heart J"},{"key":"10.1016\/j.hrthm.2023.12.014_bib19","doi-asserted-by":"crossref","first-page":"1365","DOI":"10.1002\/ejhf.530","article-title":"Multimodality imaging-guided left ventricular lead placement in cardiac resynchronization therapy: a randomized controlled trial","volume":"18","author":"Sommer","year":"2016","journal-title":"Eur J Heart Fail"},{"key":"10.1016\/j.hrthm.2023.12.014_bib20","doi-asserted-by":"crossref","first-page":"260","DOI":"10.1016\/j.amjcard.2005.08.030","article-title":"Clinical versus echocardiographic parameters to assess response to cardiac resynchronization therapy","volume":"97","author":"Bleeker","year":"2006","journal-title":"Am J Cardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib21","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.ijcard.2018.07.060","article-title":"The definition of left bundle branch block influences the response to cardiac resynchronization therapy","volume":"269","author":"Caputo","year":"2018","journal-title":"Int J Cardiol"},{"key":"10.1016\/j.hrthm.2023.12.014_bib22","doi-asserted-by":"crossref","first-page":"1499","DOI":"10.1093\/europace\/eut049","article-title":"True complete left bundle branch block morphology strongly predicts good response to cardiac resynchronization therapy","volume":"15","author":"Tian","year":"2013","journal-title":"Europace"},{"key":"10.1016\/j.hrthm.2023.12.014_bib23","doi-asserted-by":"crossref","first-page":"202","DOI":"10.1016\/j.jelectrocard.2014.01.007","article-title":"The value of the 12-lead ECG for evaluation and optimization of cardiac resynchronization therapy in daily clinical practice","volume":"47","author":"van Deursen","year":"2014","journal-title":"J Electrocardiol"}],"container-title":["Heart Rhythm"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1547527123030655?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1547527123030655?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T07:00:35Z","timestamp":1761548435000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1547527123030655"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,4]]},"references-count":23,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2024,4]]}},"alternative-id":["S1547527123030655"],"URL":"https:\/\/doi.org\/10.1016\/j.hrthm.2023.12.014","relation":{},"ISSN":["1547-5271"],"issn-type":[{"value":"1547-5271","type":"print"}],"subject":[],"published":{"date-parts":[[2024,4]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"R-R\u02b9 interval in the left bundle branch block predicts long-term outcomes after cardiac resynchronization therapy by estimating greater mechanical dyssynchrony and viable myocardium","name":"articletitle","label":"Article Title"},{"value":"Heart Rhythm","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.hrthm.2023.12.014","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2023 Heart Rhythm Society.","name":"copyright","label":"Copyright"}]}}