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Open AccessArticle

Left Ventricular Function and Myocardial Triglyceride Content on 3T Cardiac MR Predict Major Cardiovascular Adverse Events and Readmission in Patients Hospitalized with Acute Heart Failure

1
Department of Radiology, Chang Gung Memorial Hospital, Keelung and Chang Gung University, Keelung 20401, Taiwan
2
Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital, Linkou and Chang Gung University, Taoyuan 33305, Taiwan
3
Imaging Core Lab, Institute for Radiological Research, Chang Gung University, Taoyuan 333, Taiwan
4
Clinical Metabolomics Core Lab, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
5
Department of Cardiology and Heart Failure Center, Chang Gung Memorial Hospital, Keelung 20401, Taiwan
6
Graduate Institute of Applied Physics, National Chengchi University, Taipei 11605, Taiwan
7
Department of Radiology, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan
8
Clinical Trial Center, Chang Gung Memorial Hospital at Linkou, Taoyuan 333, Taiwan
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
J. Clin. Med. 2020, 9(1), 169; https://doi.org/10.3390/jcm9010169 (registering DOI)
Received: 30 December 2019 / Revised: 5 January 2020 / Accepted: 7 January 2020 / Published: 8 January 2020
(This article belongs to the Special Issue Novel Biomarkers for Heart Disease)
Background: This prospective study was designed to investigate whether myocardial triglyceride (TG) content from proton magnetic resonance spectroscopy (MRS) and left ventricular (LV) function parameters from cardiovascular magnetic resonance imaging (CMR) can serve as imaging biomarkers in predicting future major cardiovascular adverse events (MACE) and readmission in patients who had been hospitalized for acute heart failure (HF). Methods: Patients who were discharged after hospitalization for acute HF were prospectively enrolled. On a 3.0 T MR scanner, myocardial TG contents were measured using MRS, and LV parameters (function and mass) were evaluated using cine. The occurrence of MACE and the HF-related readmission served as the endpoints. Independent predictors were identified using univariate and multivariable Cox proportional hazard regression analyses. Results: A total of 133 patients (mean age, 52.4 years) were enrolled. The mean duration of follow-up in surviving patients was 775 days. Baseline LV functional parameters—including ejection fraction, LV end-diastolic volume, LV end-diastolic volume index (LVEDVI), and LV end-systolic volume (p < 0.0001 for all), and myocardial mass (p = 0.010)—were significantly associated with MACE. Multivariable analysis revealed that LVEDVI was the independent predictor for MACE, while myocardial mass was the independent predictor for 3- and 12-month readmission. Myocardial TG content (lipid resonances δ 1.6 ppm) was significantly associated with readmission in patients with ischemic heart disease. Conclusions: LVEDVI and myocardial mass are potential imaging biomarkers that independently predict MACE and readmission, respectively, in patients discharged after hospitalization for acute HF. Myocardial TG predicts readmission in patients with a history of ischemic heart disease. View Full-Text
Keywords: cardiac magnetic resonance imaging; heart failure; left ventricular systolic function; magnetic resonance spectroscopy; myocardial triglyceride content cardiac magnetic resonance imaging; heart failure; left ventricular systolic function; magnetic resonance spectroscopy; myocardial triglyceride content
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Chang, K.-F.; Lin, G.; Huang, P.-C.; Juan, Y.-H.; Wang, C.-H.; Tsai, S.-Y.; Lin, Y.-C.; Wu, M.-T.; Liao, P.-A.; Yang, L.-Y.; Liu, M.-H.; Lin, Y.-C.; Wang, J.-J.; Ng, K.-K.; Ng, S.-H. Left Ventricular Function and Myocardial Triglyceride Content on 3T Cardiac MR Predict Major Cardiovascular Adverse Events and Readmission in Patients Hospitalized with Acute Heart Failure. J. Clin. Med. 2020, 9, 169.

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