PMID- 32960993 OWN - NLM STAT- MEDLINE DCOM- 20210809 LR - 20210809 IS - 1932-8737 (Electronic) IS - 0160-9289 (Print) IS - 0160-9289 (Linking) VI - 43 IP - 12 DP - 2020 Dec TI - Remarkable response to cardiac resynchronization therapy via left bundle branch pacing in patients with true left bundle branch block. PG - 1460-1468 LID - 10.1002/clc.23462 [doi] AB - BACKGROUND: Left bundle branch pacing (LBBP) has been suggested as an alternative means to deliver cardiac resynchronization therapy (CRT). HYPOTHESIS: LBBP may deliver resynchronization therapy along with an advantage over traditional biventricular (BiV) pacing in clinical outcomes. METHODS: Heart failure patients who presented LBBB morphology according to Strauss's criteria and received successful CRT procedure were enrolled in the present study. Propensity score matching was applied to match patients into LBBP-CRT group and BiV-CRT group. Then, the electrographic data, the echocardiographic data and New York heart association (NYHA) class were compared between the groups. RESULTS: Twenty-one patients with successful LBBP procedure and another 21 matched patients with successful BiV-CRT procedure were finally enrolled in the study. The QRS duration (QRSd) was narrowed from 167.7 +/- 14.9 ms to 111.7 +/- 12.3 ms (P < .0001) in the LBBP-CRT group and from 163.6 +/- 13.8 ms to 130.1 +/- 14.0 ms (P < .0001) in the BiV-CRT group. A trend toward better left ventricular ejection fraction (LVEF) was recorded in the LBBP-CRT group (50.9 +/- 10.7% vs 44.4 +/- 13.3%, P = .12) compared to that in the BiV-CRT group at the 6-month follow-up. A trend toward better echocardiographic response was documented in patients receiving LBBP-CRT procedure (90.5% vs 80.9%, P = .43) and more super CRT response was documented in the LBBP-CRT group (80.9% vs 57.1%, P = .09) compared to that in the BiV-CRT group. CONCLUSIONS: LBBP-CRT can dramatically improve the electrical synchrony in heart failure patients with LBBB. Meanwhile, compared with the traditional BiV-CRT, it has a tendency to significantly improve LVEF and enhance the NYHA cardiac function scores. CI - (c) 2020 The Authors. Clinical Cardiology published by Wiley Periodicals LLC. FAU - Guo, Jincun AU - Guo J AUID- ORCID: 0000-0002-7120-2203 AD - Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Li, Linlin AU - Li L AD - Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Xiao, Guosheng AU - Xiao G AD - Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Ye, Tao AU - Ye T AD - Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Huang, Xinyi AU - Huang X AD - Division of Echocardiography, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Meng, Fanqi AU - Meng F AD - Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Li, Qiang AU - Li Q AD - Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Chen, Simei AU - Chen S AD - Division of Cardiac Function, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. FAU - Cai, Binni AU - Cai B AD - Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China. LA - eng GR - 3502Z20199141/The Guiding Program of Xiamen Science and Technology Department/ GR - 3502Z20191103/the Key Medical Projects of Xiamen Science and Technology Plan/ PT - Journal Article PT - Observational Study DEP - 20200922 PL - United States TA - Clin Cardiol JT - Clinical cardiology JID - 7903272 SB - IM MH - Aged MH - Bundle-Branch Block/diagnosis/physiopathology/*therapy MH - Cardiac Resynchronization Therapy/*methods MH - Echocardiography MH - *Electrocardiography MH - Female MH - Follow-Up Studies MH - Heart Ventricles/diagnostic imaging/physiopathology MH - Humans MH - Male MH - Prospective Studies MH - Stroke Volume/*physiology MH - Treatment Outcome MH - Ventricular Function, Left/*physiology PMC - PMC7724211 OTO - NOTNLM OT - biventricular pacing OT - cardiac resynchronization therapy OT - heart failure OT - left bundle branch block OT - left bundle branch pacing OT - physiological pacing COIS- The authors declared that they have no conflict of interest. EDAT- 2020/09/23 06:00 MHDA- 2021/08/10 06:00 PMCR- 2020/09/22 CRDT- 2020/09/22 17:12 PHST- 2020/07/31 00:00 [received] PHST- 2020/08/30 00:00 [revised] PHST- 2020/09/01 00:00 [accepted] PHST- 2020/09/23 06:00 [pubmed] PHST- 2021/08/10 06:00 [medline] PHST- 2020/09/22 17:12 [entrez] PHST- 2020/09/22 00:00 [pmc-release] AID - CLC23462 [pii] AID - 10.1002/clc.23462 [doi] PST - ppublish SO - Clin Cardiol. 2020 Dec;43(12):1460-1468. doi: 10.1002/clc.23462. Epub 2020 Sep 22.