PMID- 33724264 OWN - NLM STAT- MEDLINE DCOM- 20220519 LR - 20220519 IS - 1804-7521 (Electronic) IS - 1213-8118 (Linking) VI - 166 IP - 2 DP - 2022 May TI - Cardiac Resynchronization and Defibrillator Therapy (CRT-D) or CRT Alone (CRT-P) in patients with dilated cardiomyopathy and heart failure without late gadolinium enhancement (LGE) cardiac magnetic resonance imaging (CMRI) high-risk markers - CRT-REALITY study - Study design and rationale. PG - 173-179 LID - 10.5507/bp.2021.015 [doi] AB - BACKGROUND: Primary preventive implantation of implantable defibrillator (ICD) is according to current guidelines indicated in patients with heart failure NYHA (New York Heart Association) class II/III and LVEF <35%. Thanks to advances in heart failure pharmacotherapy, a decrease in mortality could render a benefit of ICD insufficient to justify its implantation in some patients. METHODS: Study design: multicenter, prospective, randomized, controlled trial evaluating the benefit of implantation of Cardiac Resynchronization and Defibrillator Therapy (CRT-D) or CRT Alone (CRT-P) in non-ischemic patients with reduced left ventricle ejection fraction (LVEF) and optimal pharmacotherapy without significant mid-wall myocardial fibrosis detected by cardiac magnetic resonance (CMR). The primary end-point: Re-hospitalization for heart failure, ventricular tachycardia, major adverse cardiac events (MACE). The secondary end-points: Sudden cardiac death, cardiovascular death, resuscitated cardiac arrest or sustained ventricular tachycardia, device-related complications, and change in quality of life. Course of the study: After a pharmacotherapy is optimized and significant mid-wall myocardial fibrosis excluded, patients will be randomized 1:1 to CRT-P or CRT-D implantation. DISCUSSION: If our hypothesis is confirmed, this could provide evidence for the management of these patients with a significant impact on common daily praxis and health care expenditures. CLINICALTRIALS: gov, NCT04139460. FAU - Taborsky, Milos AU - Taborsky M AD - Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic. FAU - Skala, Tomas AU - Skala T AD - Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic. FAU - Aiglova, Renata AU - Aiglova R AD - Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic. FAU - Fedorco, Marian AU - Fedorco M AD - Department of Internal Medicine I - Cardiology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, Czech Republic. FAU - Kautzner, Josef AU - Kautzner J AD - Cardiology Department, Institute for Clinical and Experimental Medicine, Prague, Czech Republic. FAU - Jandik, Tomas AU - Jandik T AD - Department of Cardiology, University Hospital Pilzen, Czech Republic. FAU - Vancura, Vlastimil AU - Vancura V AD - Department of Cardiology, University Hospital Pilzen, Czech Republic. FAU - Linhart, Ales AU - Linhart A AD - The Internal Clinic of Cardiology and Angiology of the First Faculty of Medicine and General Teaching Hospital, Czech Republic. FAU - Valek, Martin AU - Valek M AD - The Internal Clinic of Cardiology and Angiology of the First Faculty of Medicine and General Teaching Hospital, Czech Republic. FAU - Novak, Miloslav AU - Novak M AD - St. Anne's University Hospital Brno, Czech Republic. FAU - Kala, Petr AU - Kala P AD - University Hospital Brno, Czech Republic. FAU - Polasek, Rostislav AU - Polasek R AD - Liberec Hospital, Czech Republic. FAU - Roubicek, Tomas AU - Roubicek T AD - Liberec Hospital, Czech Republic. FAU - Schee, Alexandr AU - Schee A AD - Private Cardiovascular Center Karlovy Vary Kardio KV L.T.D., Czech Republic. FAU - Hindricks, Gerhard AU - Hindricks G AD - Herzzentrum Leipzig, Germany. FAU - Dagres, Nikolaos AU - Dagres N AD - Herzzentrum Leipzig, Germany. FAU - Hatala, Robert AU - Hatala R AD - Cardiological Clinic of National Institute of CV Diseases in Bratislava, Slovak Republic. FAU - Jarkovsky, Jiri AU - Jarkovsky J AD - Institute for Biostatistics and Analyses of Faculty of Medicine Brno, Czech Republic. LA - eng SI - ClinicalTrials.gov/NCT04139460 PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial DEP - 20210312 PL - Czech Republic TA - Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub JT - Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia JID - 101140142 RN - 0 (Contrast Media) RN - AU0V1LM3JT (Gadolinium) SB - IM MH - *Cardiac Resynchronization Therapy MH - *Cardiomyopathies/therapy MH - *Cardiomyopathy, Dilated/complications/diagnostic imaging/therapy MH - Contrast Media MH - *Defibrillators, Implantable MH - Fibrosis MH - Gadolinium MH - *Heart Failure MH - Humans MH - Magnetic Resonance Imaging MH - Prospective Studies MH - Quality of Life MH - *Tachycardia, Ventricular/therapy MH - Treatment Outcome OTO - NOTNLM OT - cardiac resynchronization therapy OT - heart failure OT - implantable cardioverter-defibrillator OT - late gadolinium enhancement OT - magnetic resonance imaging OT - non-ischemic cardiomyopathy OT - randomized controlled trial COIS- The authors report no conflicts of interest in this work. EDAT- 2021/03/17 06:00 MHDA- 2022/05/20 06:00 CRDT- 2021/03/16 12:31 PHST- 2020/12/15 00:00 [received] PHST- 2021/02/05 00:00 [accepted] PHST- 2021/03/17 06:00 [pubmed] PHST- 2022/05/20 06:00 [medline] PHST- 2021/03/16 12:31 [entrez] AID - 10.5507/bp.2021.015 [doi] PST - ppublish SO - Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2022 May;166(2):173-179. doi: 10.5507/bp.2021.015. Epub 2021 Mar 12.