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ERGELEN, RABİA

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RABİA

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2014 - 20152
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Author: SÜNBÜL, MURAT ×

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    Nonalcoholic Steatohepatitis Score is an Independent Predictor of Right Ventricular Dysfunction in Patients with Nonalcoholic Fatty Liver Disease
    (WILEY-HINDAWI, 2015) SÜNBÜL, MURAT; Sunbul, Murat; Kivrak, Tarik; Durmus, Erdal; Akin, Hakan; Aydin, Yucel; Ergelen, Rabia; Yilmaz, Yusuf; Agirbasli, Mehmet
    ObjectiveNonalcoholic fatty liver disease (NAFLD) is associated with increased risk of cardiovascular disease and impaired left ventricular (LV) function, yet the impact of NAFLD on right ventricular (RV) function remains unclear. We investigate the RV functional properties in patients with NAFLD. MethodsNinety consecutive patients with the diagnosis of biopsy-proven NAFLD and 45 age- and sex-matched controls were included. All patients underwent an echocardiographic examination. RV function was evaluated by two-dimensional (2D) speckle-tracking echocardiography (STE). ResultsMean fibrosis stage and nonalcoholic steatohepatitis (NASH) scores were 1.31.1 and 5.2 +/- 1.6, respectively. NAFLD patients displayed decreased RV function compared to controls. NAFLD patients with liver fibrosis (67 patients) had significantly lower RV function assessed by GLS (global longitudinal strain) compared to patients without liver fibrosis (18.9 +/- 3.4% vs. 21.6 +/- 2.3%, P<0.001). NASH score 5 was associated with lower RV-GLS (18.9 +/- 3.1% vs. 21.0 +/- 3.4%, P=0.006). NASH score inversely correlated with RV-GLS (r=-0.370, P<0.001) such as patients with impaired RV-GLS (<19%) showed significantly higher NASH score compared to normal RV-GLS group (5.8 +/- 1.4 vs. 4.8 +/- 1.7, P=0.009). Logistic regression analysis revealed that NASH score was an independent predictor of impaired RV function in patients with NAFLD. ConclusionsPatients with NAFLD have impaired RV function. NASH score inversely correlates with RV-GLS and independently predicts impaired RV function in patients with NAFLD.
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    Arterial stiffness in patients with non-alcoholic fatty liver disease is related to fibrosis stage and epicardial adipose tissue thickness
    (ELSEVIER IRELAND LTD, 2014) SÜNBÜL, MURAT; Sunbul, Murat; Agirbasli, Mehmet; Durmus, Erdal; Kivrak, Tarik; Akin, Hakan; Aydin, Yucel; Ergelen, Rabia; Yilmaz, Yusuf
    Objective: Non-alcoholic fatty liver disease (NAFLD) is associated with atherosclerosis and reduced vascular compliance. The purpose of this study was to examine the relationships between arterial stiffness measures, the histological severity of NAFLD, and epicardial fat thickness (EFT). Methods: A total of 100 patients with biopsy-proven NAFLD and 50 age-and sex-matched controls were enrolled. The histological severity was assessed in all NAFLD patients. Measurements of arterial stiffness [pulse-wave velocity (PWV) and augmentation index (AIx)] were carried out using a Mobil-O-Graph arteriograph system. EFT was assessed by means of echocardiography. Results: Compared with controls, NAFLD patients had significantly higher PWV and AIx values. Stepwise linear regression analysis demonstrated that the liver fibrosis score and EFT were independent predictors of both PWV and AIx values in NAFLD patients. Conclusions: Patients with NAFLD have an increased arterial stiffness, which reflects both the severity of liver fibrosis and increased EFT values. (C) 2014 Elsevier Ireland Ltd. All rights reserved.