PMID- 36738844 OWN - NLM STAT- MEDLINE DCOM- 20230315 LR - 20230626 IS - 1874-1754 (Electronic) IS - 0167-5273 (Linking) VI - 377 DP - 2023 Apr 15 TI - Efficacy of CRT upgrade in pacemaker-induced cardiomyopathy in an outpatient clinic - Results of a prospective registry. PG - 60-65 LID - S0167-5273(23)00119-5 [pii] LID - 10.1016/j.ijcard.2023.01.077 [doi] AB - PURPOSE: The aim of this prospective, monocentric registry study was to investigate whether upgrading to cardiac resynchronization therapy (CRT) in pacemaker-induced cardiomyopathy (PICM) can improve left ventricular function in typical outpatient clinical patients. METHODS: We screened for PICM in a pacemaker outpatient clinic between 2017 and 2021. The follow-up period was 6 months. The primary endpoint was decreased left ventricular end systolic volume (LVESV), and the responder criterion was decreased LVESV >15%. Secondary endpoints were LVEF, NYHA class, device-associated complications and death. RESULTS: 66 patients were newly diagnosed with PICM. 55 of them received a CRT upgrade. For the primary endpoint, LVESV decreased from 101.6 +/- 48.2 ml to 75.9 +/- 35.8 ml (p < 0.001). Secondary endpoints were: a) LVEF increased from 31.5 +/- 5.4% to 46.1 +/- 7.6% (p < 0.001) and b) NYHA class improved by an average of one class in both groups (p < 0.001). The overall complication rate was 1.8%. CONCLUSIONS: CRT upgrade in outpatient clinic patients with PICM improves left ventricular function and functional capacity and is associated with an acceptable complication rate. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Christoph, Melzer AU - Christoph M AD - Herzschrittmacher- und ICD-Zentrum, Berlin, 10439 Berlin, Germany. Electronic address: melzer.implantation@gmail.com. FAU - Marius, Schwerg AU - Marius S AD - Department of Cardiology, Martin-Luther-Krankenhaus, 14193 Berlin, Germany. FAU - Karl, Stangl AU - Karl S AD - Department of Cardiology and Angiology, Campus Mitte, Charite Universitatsmedizin Berlin, 10117 Berlin, Germany. FAU - Friedrich, Kohler AU - Friedrich K AD - Department of Cardiology and Angiology, Campus Mitte, Charite Universitatsmedizin Berlin, 10117 Berlin, Germany. LA - eng PT - Journal Article DEP - 20230202 PL - Netherlands TA - Int J Cardiol JT - International journal of cardiology JID - 8200291 SB - IM CIN - Int J Cardiol. 2023 Jul 1;382:62. PMID: 36965637 MH - Humans MH - *Cardiac Resynchronization Therapy/adverse effects MH - *Heart Failure/diagnosis MH - *Pacemaker, Artificial/adverse effects MH - *Cardiomyopathies/etiology/therapy MH - Ventricular Function, Left MH - Treatment Outcome MH - Stroke Volume OTO - NOTNLM OT - Cardiac resynchronization therapy (CRT) OT - Pacemaker OT - Pacemaker-induced cardiomyopathy COIS- Declaration of Competing Interest C. Melzer, M. Schwerg, K. Stangl and F. Kohler declare that they have no competing interests. EDAT- 2023/02/05 06:00 MHDA- 2023/03/16 06:00 CRDT- 2023/02/04 19:24 PHST- 2022/11/02 00:00 [received] PHST- 2023/01/18 00:00 [revised] PHST- 2023/01/26 00:00 [accepted] PHST- 2023/02/05 06:00 [pubmed] PHST- 2023/03/16 06:00 [medline] PHST- 2023/02/04 19:24 [entrez] AID - S0167-5273(23)00119-5 [pii] AID - 10.1016/j.ijcard.2023.01.077 [doi] PST - ppublish SO - Int J Cardiol. 2023 Apr 15;377:60-65. doi: 10.1016/j.ijcard.2023.01.077. Epub 2023 Feb 2.