PMID- 33845081 OWN - NLM STAT- MEDLINE DCOM- 20210707 LR - 20210707 IS - 1874-1754 (Electronic) IS - 0167-5273 (Linking) VI - 335 DP - 2021 Jul 15 TI - His-purkinje system pacing upgrade improve the heart performances in patients suffering from pacing-induced cardiomyopathy with or without permanent atrial fibrillation. PG - 47-51 LID - S0167-5273(21)00648-3 [pii] LID - 10.1016/j.ijcard.2021.04.012 [doi] AB - INTRODUCTION: The efficacy and safety of his-purkinje system pacing (HPSP) upgrades in patients with pacing-induced cardiomyopathy (PICM) and atrial fibrillation (AF) are still unknown. METHODS AND RESULTS: Patients with PICM were continuously enrolled from January 2018 to March 2020. All patients were further divided into AF subgroup and sinus rhythm subgroup. Clinical data including echocardiographic examination parameters, electrocardiogram (ECG) measurements, and New York Heart Association (NYHA) classification, were assessed before and after the procedure. The HPSP upgrades, including his bundle pacing (HBP) and left bundle branch pacing (LBBP) were completed in 34 of 36 (94%) patients, Complications including electrode dislodged, perforation, infection or thrombosis were not observed in the perioperative period. During a mean of 11.52 +/- 5.40 months of follow-up. The left ventricular ejection fraction (LVEF) increased significantly (33.76 +/- 7.54 vs 40.41 +/- 9.06, P < 0.001), and the QRS duration decreased (184.22 +/- 23.76 ms vs 120.52 +/- 16.67 ms, P < 0.001) after the upgrades. LVEDD reversed from 59.29 +/- 7.74 mm to 53.91 +/- 5.92 mm (P < 0.001), and the NYHA functional class also improved to 2.00 +/- 0.76 from 2.55 +/- 0.91 at the first follow-up (P < 0.001). The left atrium (LA) size also slightly decreased compared to the initial state (47.44 +/- 7.14 mm VS 45.56 +/- 7.78, P = 0.010). BNP significantly decreased from a median value of 458.06(256.35-755.10) to 172.31(92.69-552.14) (P = 0.004). The threshold did not increase significantly (1.18 +/- 0.76 mv@0.4 ms vs 1.26 +/- 0.91mv @ 0.4 ms, P = 0.581). These improvements in patients with AF were similar with those in patients without AF (P > 0.05). CONCLUSIONS: HPSP upgrades improved the heart performance and reversed the left ventricular remodeling in patients suffering from PICM with or without AF, and it should be a promising choice in these patients. CI - Copyright (c) 2021. Published by Elsevier B.V. FAU - Yang, Yi-Heng AU - Yang YH AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Wang, Ke-Xin AU - Wang KX AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Ma, Pei-Pei AU - Ma PP AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Zhang, Rong-Feng AU - Zhang RF AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Waleed, Khalid Bin AU - Waleed KB AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China; Department of cardiology, Fuwai Hospital Chinese Academy of Medical Sciences Shenzhen, Shenzhen, Guangdong, China. FAU - Yin, Xiaomeng AU - Yin X AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Gao, Lian-Jun AU - Gao LJ AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. FAU - Xia, Yun-Long AU - Xia YL AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. Electronic address: yunlong_xia@126.com. FAU - Dong, Ying-Xue AU - Dong YX AD - Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian, China. Electronic address: dlsusan@126.com. LA - eng PT - Journal Article DEP - 20210415 PL - Netherlands TA - Int J Cardiol JT - International journal of cardiology JID - 8200291 SB - IM MH - *Atrial Fibrillation/diagnosis/therapy MH - Bundle of His MH - Cardiac Pacing, Artificial MH - *Cardiomyopathies MH - Humans MH - Stroke Volume MH - Ventricular Function, Left OTO - NOTNLM OT - Cardiac function OT - His-Purkinje system pacing OT - Pacing-induced cardiomyopathy EDAT- 2021/04/13 06:00 MHDA- 2021/07/08 06:00 CRDT- 2021/04/12 20:12 PHST- 2021/01/21 00:00 [received] PHST- 2021/04/01 00:00 [revised] PHST- 2021/04/06 00:00 [accepted] PHST- 2021/04/13 06:00 [pubmed] PHST- 2021/07/08 06:00 [medline] PHST- 2021/04/12 20:12 [entrez] AID - S0167-5273(21)00648-3 [pii] AID - 10.1016/j.ijcard.2021.04.012 [doi] PST - ppublish SO - Int J Cardiol. 2021 Jul 15;335:47-51. doi: 10.1016/j.ijcard.2021.04.012. Epub 2021 Apr 15.