Circulating MicroRNAs: a Potential Biomarker for Cardiac Damage, Inflammatory Response, and Left Ventricular Function Recovery in Pediatric Viral Myocarditis

2018 ◽  
Vol 11 (4) ◽  
pp. 319-328 ◽  
Author(s):  
Lior Goldberg ◽  
Tal Tirosh-Wagner ◽  
Amir Vardi ◽  
Haya Abbas ◽  
Nir Pillar ◽  
...  
Keyword(s):  
Inflammatory Response ◽  
Left Ventricular Function ◽  
Ventricular Function ◽  
Viral Myocarditis ◽  
Left Ventricular ◽  
Cardiac Damage ◽  
Circulating Micrornas ◽  
Potential Biomarker ◽  
Function Recovery

scholarly journals Left ventricular function recovery in peripartum cardiomyopathy: a cardiovascular magnetic resonance study by myocardial T1 and T2 mapping

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Yao-Dan Liang ◽  
Yuan-Wei Xu ◽  
Wei-Hao Li ◽  
Ke Wan ◽  
Jia-Yu Sun ◽  
...  
Keyword(s):  
Left Ventricular Function ◽  
Ventricular Function ◽  
T2 Mapping ◽  
Left Ventricular ◽  
Ventricular Ejection Fraction ◽  
Native T1 ◽  
Function Recovery ◽  
Myocardial T1 ◽  
T1 And T2

Abstract Background Peripartum cardiomyopathy (PPCM) is rare and potentially life-threatening; its etiology remains unclear. Imaging characteristics on cardiovascular magnetic resonance (CMR) and their prognostic significance have rarely been studied. We sought to determine CMR’s prognostic value in PPCM by using T1 and T2 mapping techniques. Methods Data from 21 PPCM patients from our CMR registry database were analyzed. The control group comprised 20 healthy age-matched females. All subjects underwent comprehensive contrast-enhanced CMR. T1 and T2 mapping using modified Look-Locker inversion recovery and T2 prep balanced steady-state free precession sequences, respectively. Ventricular size and function, late gadolinium enhancement (LGE), myocardial T1 value, extracellular volume (ECV), and T2 value were analyzed. Transthoracic echocardiography was performed at baseline and during follow-up. The recovered left ventricular ejection fraction (LVEF) was defined as LVEF ≥50% on echocardiography follow-up after at least 6 months of the diagnosis. Results CMR imaging showed that the PPCM patients had severely impaired LVEF and right ventricular ejection fraction (LVEF: 26.8 ± 10.6%; RVEF: 33.9 ± 14.6%). LGE was seen in eight (38.1%) cases. PPCM patients had significantly higher native T1 and ECV (1345 ± 79 vs. 1212 ± 32 ms, P < 0.001; 33.9 ± 5.2% vs. 27.1 ± 3.1%, P < 0.001; respectively) and higher myocardial T2 value (42.3 ± 3.7 vs. 36.8 ± 2.3 ms, P < 0.001) than did the normal controls. After a median 2.5-year follow-up (range: 8 months-5 years), six patients required readmission for heart failure, two died, and 10 showed left ventricular function recovery. The LVEF-recovered group showed significantly lower ECV (30.7 ± 2.1% vs. 36.8 ± 5.6%, P = 0.005) and T2 (40.6 ± 3.0 vs. 43.9 ± 3.7 ms, P = 0.040) than the unrecovered group. Multivariable logistic regression analysis showed ECV (OR = 0.58 for per 1% increase, P = 0.032) was independently associated with left ventricular recovery in PPCM. Conclusions Compared to normal controls, PPCM patients showed significantly higher native T1, ECV, and T2. Native T1, ECV, and T2 were associated with LVEF recovery in PPCM. Furthermore, ECV could independently predict left ventricular function recovery in PPCM.

Left ventricular function recovery after revascularization

2018 ◽  
Vol 33 (6) ◽  
pp. 633-637 ◽  
Author(s):  
Janet M.C. Ngu ◽  
Marc Ruel ◽  
Louise Y. Sun
Keyword(s):  
Left Ventricular Function ◽  
Ventricular Function ◽  
Left Ventricular ◽  
Function Recovery
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