{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T15:27:21Z","timestamp":1784042841148,"version":"3.55.0"},"reference-count":25,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2025,12,20]],"date-time":"2025-12-20T00:00:00Z","timestamp":1766188800000},"content-version":"vor","delay-in-days":1811,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2021,1,4]],"date-time":"2021-01-04T00:00:00Z","timestamp":1609718400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Key Research and Development Program of Zhejiang","award":["2019C03012"],"award-info":[{"award-number":["2019C03012"]}]},{"name":"Major Project of the Science and Technology of Wenzhou","award":["ZS2017010"],"award-info":[{"award-number":["ZS2017010"]}]},{"name":"Natural Science for Youth Foundation","award":["81900345"],"award-info":[{"award-number":["81900345"]}]},{"DOI":"10.13039\/100014717","name":"National Outstanding Youth Science Fund Project of National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81900345"],"award-info":[{"award-number":["81900345"]}],"id":[{"id":"10.13039\/100014717","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,4,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aims<\/jats:title>\n                    <jats:p>His\u2013Purkinje conduction system pacing (HPCSP) utilizing His (HBP) or left bundle branch pacing (LBBP) in patients with atrial fibrillation (AF) and wide QRS duration has not been well studied. We assessed the benefit of left bundle branch block (LBBB) correction during HPCSP in AF patients undergoing atrioventricular junction (AVJ) ablation with LBBB, compared with those with narrow QRS duration.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and results<\/jats:title>\n                    <jats:p>This is an observational study in consecutive patients with typical LBBB or narrow QRS duration in whom we attempted HPCSP after AVJ ablation for refractory AF with a left ventricular ejection fraction (LVEF) \u2264 50%. Echocardiographic responses and clinical outcomes were assessed at baseline and during 1 year of follow-up. A total of 178 patients were enrolled, of which 170 achieved AVJ ablation + permanent HPCSP (age 69.3 \u00b1 10.1 years; LVEF 34.3 \u00b1 7.7%), 133 (78.2%) patients had a narrow QRS duration, and 37 (21.2%) had an LBBB. The QRS duration changed from a baseline of 159.7 \u00b1 16.6 ms to a paced QRS duration of 110.4 \u00b1 12.7 ms in the LBBB cohort and from 95.6 \u00b1 10.4 to 100.8 \u00b1 14.5 ms (both P &amp;lt; 0.001) in the narrow QRS cohort after AVJ ablation and pacing. Compared with the narrow QRS cohort, the LBBB cohort showed a greater absolute increase in LVEF (+22.3% vs. +14.2%, P &amp;lt; 0.001), higher super responder rate (71.4% vs. 49.2%, P = 0.011), and greater New York Heart Association (NYHA) class improvement (\u22121.9 vs. \u22121.4, P &amp;lt; 0.001) at 1 year.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Patients with LBBB have greater improvement in LVEF and NYHA class function than patients with narrow QRS from HPCSP after AVJ ablation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ehf2.13181","type":"journal-article","created":{"date-parts":[[2021,1,4]],"date-time":"2021-01-04T18:46:34Z","timestamp":1609785994000},"page":"1195-1203","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Impact of QRS Morphology on Response to Conduction System Pacing After Atrioventricular Junction Ablation"],"prefix":"10.1093","volume":"8","author":[{"given":"Shengjie","family":"Wu","sequence":"first","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mengxing","family":"Cai","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rujie","family":"Zheng","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Songjie","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Limeng","family":"Jiang","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruiyu","family":"Shi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fangyi","family":"Xiao","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenneth A.","family":"Ellenbogen","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Virginia Commonwealth University Health System , Richmond, VA ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongmei","family":"Cha","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Mayo Clinic , Rochester, MN ,","place":["USA"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lan","family":"Su","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 ,","place":["China"]},{"name":"The Key Lab of Cardiovascular Disease of Wenzhou , Wenzhou, 325000 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weijian","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Cardiology, The First Affiliated Hospital of Wenzhou Medical University , Wenzhou, 325000 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