PMID- 32691470 OWN - NLM STAT- MEDLINE DCOM- 20210514 LR - 20210514 IS - 1522-2586 (Electronic) IS - 1053-1807 (Linking) VI - 52 IP - 5 DP - 2020 Nov TI - Prognostic Value of Right Ventricular Dysfunction in Patients With AL Amyloidosis: Comparison of Different Techniques by Cardiac Magnetic Resonance. PG - 1441-1448 LID - 10.1002/jmri.27200 [doi] AB - BACKGROUND: Right ventricular (RV) dysfunction is common in patients with amyloid light-chain (AL) amyloidosis. While cardiac MRI is the reference standard tool for RV assessment, there are a number of measures of RV function that can be evaluated and it is yet unknown which of these results in the highest prognostic performance in AL amyloidosis. PURPOSE: To examine the prognostic value of various measures of RV function in a bid to find which best predicts outcome in AL amyloidosis. STUDY TYPE: Single-center, prospective. SUBJECTS: In all, 129 patients (mean age, 58 +/- 11 years; 61.2% men) with biopsy-proven AL amyloidosis. FIELD STRENGTH/SEQUENCE: 3.0T / balanced steady-state free-precession cine. ASSESSMENT: RV ejection fraction (EF), RV fractional area change (FAC), RV long axis strain (LAS), RV free wall longitudinal strain (FWS), RV global longitudinal strain (GLS), and tricuspid annular plane systolic excursion (TAPSE). STATISTICAL TESTS: Mann-Whitney U-tests, Student's t-tests, receiver-operating characteristic curves, Kaplan-Meier curves, Cox proportional hazards regression models, and C-statistics. RESULTS: During the median follow-up period of 38.0 months (interquartile range, 18.5-58.0 months), all-cause mortality occurred in 95 patients (73.6%). The RVEF, RVGLS, TAPSE, RVFAC, and RVFWS were significant predictors of outcome in univariate Cox regression (all P < 0.001). After adjusting for New York Heart Association (NYHA) class, Mayo staging 2004, left ventricular (LV) EF, and LV mass index, RVFWS (HR [hazard ratio] =1.074; 95% CI [confidence interval]: 1.041-1.108; P < 0.001) was an independent predictor of all-cause mortality and had a higher C-statistic (0.753) compared to the model including RVEF (C-statistic = 0.724, P = 0.034), the model including RVFAC (C-statistic = 0.723, P = 0.033), and the model including RVGLS (C-statistic =0.733, P = 0.011). DATA CONCLUSION: RV dysfunction appears to be an independent determinant of outcome in patients with AL amyloidosis. RVFWS is a better predictor of all-cause mortality than RVEF, RVFAC, or RVGLS. EVIDENCE LEVEL: 2 TECHNICAL EFFICACY STAGE: 5. CI - (c) 2020 International Society for Magnetic Resonance in Medicine. FAU - Wan, Ke AU - Wan K AD - Department of Geriatrics and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China. FAU - Lin, Jiayi AU - Lin J AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Guo, Xinli AU - Guo X AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Song, Rizhen AU - Song R AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Wang, Jie AU - Wang J AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Xu, Yuanwei AU - Xu Y AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Li, Weihao AU - Li W AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Cheng, Wei AU - Cheng W AD - Department of Radiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Sun, Jiayu AU - Sun J AD - Department of Radiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Zhang, Qing AU - Zhang Q AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. FAU - Han, Yuchi AU - Han Y AD - Department of Medicine (Cardiovascular Division), University of Pennsylvania, Philadelphia, Pennsylvania, USA. FAU - Chen, Yucheng AU - Chen Y AUID- ORCID: 0000-0002-0601-8039 AD - Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China. AD - Center of Rare diseases, West China Hospital, Sichuan University, Chengdu, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200720 PL - United States TA - J Magn Reson Imaging JT - Journal of magnetic resonance imaging : JMRI JID - 9105850 SB - IM MH - Aged MH - Female MH - Humans MH - *Immunoglobulin Light-chain Amyloidosis/diagnostic imaging MH - Magnetic Resonance Spectroscopy MH - Male MH - Middle Aged MH - Prognosis MH - Prospective Studies MH - Stroke Volume MH - *Ventricular Dysfunction, Right/diagnostic imaging MH - Ventricular Function, Right OTO - NOTNLM OT - AL amyloidosis OT - magnetic resonance imaging OT - prognosis OT - right ventricle EDAT- 2020/07/22 06:00 MHDA- 2021/05/15 06:00 CRDT- 2020/07/22 06:00 PHST- 2020/02/10 00:00 [received] PHST- 2020/04/30 00:00 [revised] PHST- 2020/05/01 00:00 [accepted] PHST- 2020/07/22 06:00 [pubmed] PHST- 2021/05/15 06:00 [medline] PHST- 2020/07/22 06:00 [entrez] AID - 10.1002/jmri.27200 [doi] PST - ppublish SO - J Magn Reson Imaging. 2020 Nov;52(5):1441-1448. doi: 10.1002/jmri.27200. Epub 2020 Jul 20.