PMID- 35680209 OWN - NLM STAT- MEDLINE DCOM- 20220613 LR - 20230110 IS - 1876-7591 (Electronic) IS - 1876-7591 (Linking) VI - 15 IP - 6 DP - 2022 Jun TI - Left Atrial Strain Has Superior Prognostic Value to Ventricular Function and Delayed-Enhancement in Dilated Cardiomyopathy. PG - 1015-1026 LID - S1936-878X(22)00101-2 [pii] LID - 10.1016/j.jcmg.2022.01.016 [doi] AB - BACKGROUND: The left atrium is an early sensor of left ventricular (LV) dysfunction. Still, the prognostic value of left atrial (LA) function (strain) on cardiac magnetic resonance (CMR) in dilated cardiomyopathy (DCM) remains unknown. OBJECTIVES: The goal of this study was to evaluate the prognostic value of CMR-derived LA strain in DCM. METHODS: Patients with DCM from the Maastricht Cardiomyopathy Registry with available CMR imaging were included. The primary endpoint was the combination of sudden or cardiac death, heart failure (HF) hospitalization, or life-threatening arrhythmias. Given the nonlinearity of continuous variables, cubic spline analysis was performed to dichotomize. RESULTS: A total of 488 patients with DCM were included (median age: 54 [IQR: 46-62] years; 61% male). Seventy patients (14%) reached the primary endpoint (median follow-up: 6 [IQR: 4-9] years). Age, New York Heart Association (NYHA) functional class >II, presence of late gadolinium enhancement (LGE), LV ejection fraction (LVEF), LA volume index (LAVI), LV global longitudinal strain (GLS), and LA reservoir and conduit strain were univariably associated with the outcome (all P < 0.02). LA conduit strain was a stronger predictor of outcome compared with reservoir strain. LA conduit strain, NYHA functional class >II, and LGE remained associated in the multivariable model (LA conduit strain HR: 3.65 [95% CI: 2.01-6.64; P < 0.001]; NYHA functional class >II HR: 1.81 [95% CI: 1.05-3.12; P = 0.033]; and LGE HR: 2.33 [95% CI: 1.42-3.85; P < 0.001]), whereas age, N-terminal pro-B-type natriuretic peptide, LVEF, left atrial ejection fraction, LAVI, and LV GLS were not. Adding LA conduit strain to other independent predictors (NYHA functional class and LGE) significantly improved the calibration, accuracy, and reclassification of the prediction model (P < 0.05). CONCLUSIONS: LA conduit strain on CMR is a strong independent prognostic predictor in DCM, superior to LV GLS, LVEF, and LAVI and incremental to LGE. Including LA conduit strain in DCM patient management should be considered to improve risk stratification. CI - Copyright (c) 2022 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved. FAU - Raafs, Anne G AU - Raafs AG AD - Department of Cardiology, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands. Electronic address: anne.raafs@mumc.nl. FAU - Vos, Jacqueline L AU - Vos JL AD - Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands. FAU - Henkens, Michiel T H M AU - Henkens MTHM AD - Department of Cardiology, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands; Netherlands Heart Institute (NLHI), Utrecht, the Netherlands. FAU - Slurink, Bram O AU - Slurink BO AD - Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands. FAU - Verdonschot, Job A J AU - Verdonschot JAJ AD - Department of Cardiology, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands; Department of Clinical Genetics, Maastricht University Medical Center, Maastricht, the Netherlands. FAU - Bossers, Daan AU - Bossers D AD - Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands. FAU - Roes, Kit AU - Roes K AD - Department of Health Evidence, Radboud University Medical Center, Nijmegen, the Netherlands. FAU - Gerretsen, Suzanne AU - Gerretsen S AD - Department of Radiology and Nuclear Medicine, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Centre, Maastricht, the Netherlands. FAU - Knackstedt, Christian AU - Knackstedt C AD - Department of Cardiology, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands. FAU - Hazebroek, Mark R AU - Hazebroek MR AD - Department of Cardiology, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands. FAU - Nijveldt, Robin AU - Nijveldt R AD - Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands. FAU - Heymans, Stephane R B AU - Heymans SRB AD - Department of Cardiology, Cardiovascular Research Institute (CARIM), Maastricht University Medical Center, Maastricht, the Netherlands; Department of Cardiovascular Research, University of Leuven, Leuven, Belgium. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220511 PL - United States TA - JACC Cardiovasc Imaging JT - JACC. Cardiovascular imaging JID - 101467978 RN - 0 (Contrast Media) RN - AU0V1LM3JT (Gadolinium) SB - IM CIN - JACC Cardiovasc Imaging. 2022 Jun;15(6):1027-1029. PMID: 35680210 CIN - JACC Cardiovasc Imaging. 2022 Dec;15(12):2155-2156. PMID: 36481087 CIN - JACC Cardiovasc Imaging. 2022 Dec;15(12):2156-2157. PMID: 36481088 MH - *Cardiomyopathy, Dilated MH - Contrast Media MH - Female MH - Gadolinium MH - Heart Atria MH - Humans MH - Magnetic Resonance Imaging, Cine MH - Male MH - Middle Aged MH - Predictive Value of Tests MH - Prognosis MH - Stroke Volume MH - *Ventricular Dysfunction, Left MH - Ventricular Function, Left OTO - NOTNLM OT - cardiac MRI OT - dilated cardiomyopathy OT - feature tracking strain OT - left atrial phasic function OT - prognosis COIS- Funding Support and Author Disclosures This study was supported by the Netherlands Cardiovascular Research Initiative, an initiative with support of the Dutch Heart Foundation, CVON She-PREDICTS, grant 2017-21, CVON-DCVA Double Dosis 2021. Dr Heymans has provided current and previous scientific advice to AstraZeneca, CellProthera, Novo Nordisk, Bayer, Pfizer, CSL Behring, and Merck on heart failure and cardiomyopathies. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose. EDAT- 2022/06/10 06:00 MHDA- 2022/06/14 06:00 CRDT- 2022/06/09 21:03 PHST- 2021/11/02 00:00 [received] PHST- 2022/01/01 00:00 [revised] PHST- 2022/01/24 00:00 [accepted] PHST- 2022/06/09 21:03 [entrez] PHST- 2022/06/10 06:00 [pubmed] PHST- 2022/06/14 06:00 [medline] AID - S1936-878X(22)00101-2 [pii] AID - 10.1016/j.jcmg.2022.01.016 [doi] PST - ppublish SO - JACC Cardiovasc Imaging. 2022 Jun;15(6):1015-1026. doi: 10.1016/j.jcmg.2022.01.016. Epub 2022 May 11.