PT - JOURNAL ARTICLE AU - Taborsky, Milos AU - Skala, Tomas AU - Aiglova, Renata AU - Fedorco, Marian AU - Kautzner, Josef AU - Jandik, Tomas AU - Vancura, Vlastimil AU - Linhart, Ales AU - Valek, Martin AU - Novak, Miloslav AU - Kala, Petr AU - Polasek, Rostislav AU - Roubicek, Tomas AU - Schee, Alexandr AU - Hindricks, Gerhard AU - Dagres, Nikolaos AU - Hatala, Robert AU - Jarkovsky, Jiri 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 DP - 2022 May 13 TA - Biomedical papers PG - 173--179 VI - 166 IP - 2 AID - 10.5507/bp.2021.015 IS - 12138118 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. Trial registration. ClinicalTrials.gov, NCT04139460