Archives of the Turkish Society of Cardiology
Liver stiffness value obtained with ElastPQ ultrasound increases with NYHA class in chronic heart failure patients and reduced ejection fraction [Turk Kardiyol Dern Ars]
Turk Kardiyol Dern Ars. Ahead of Print: TKDA-62282 | DOI: 10.5543/tkda.2018.62282

Liver stiffness value obtained with ElastPQ ultrasound increases with NYHA class in chronic heart failure patients and reduced ejection fraction

Yahya Kemal Icen1, Abdullah Orhan Demirtas1, Ayse Selcan Koc2, Hilmi Erdem Sumbul3, Mevlut Koc1
1University of Health Sciences - Adana Health Practice and Research Center, Department of Cardiology, Adana, Turkey
2University of Health Sciences - Adana Health Practice and Research Center, Department of Radiology, Adana, Turkey
3University of Health Sciences - Adana Health Practice and Research Center, Department of Internal Medicine, Adana, Turkey


OBJECTIVE
Liver stiffness (LS) values are known to be associated with increased right ventricle (RV) pressure in patients with heart failure (HF). The aim of this study was to determine the changes in LS in patients of different New York Heart Association (NYHA) classes and the parameters related to increased LS in HF patients with reduced ejection fraction (HFrEF).

METHODS
A total of 181 patients with HFrEF were included in the study. Routine anamnesis, physical examination, laboratory examinations and echocardiography were performed. The LS measurement was performed using the ElastPQ technique (Philips Healthcare, Inc., Andover, MA, USA). The patients were grouped by NYHA class I-IV.

RESULTS
The LS values were significantly different between NYHA class groups, increasing significantly from NYHA class I to IV. The number of patients with LS >7 kPa or >10.6 kPa was significantly greater among the class III-IV patients. The RV myocardial performance index, tricuspid regurgitation pressure gradient, N-terminal pro b-type natriuretic peptide, and aspartate aminotransferase levels were found to be independently associated with LS. It was also observed that LS independently determined III-IV classification and that an increase of 1 kPa increased the risk of being class III-IV by 94.4%. Receiver operating characteristic analysis with a cut-off value of 7 kPa for LS identified patients with class III-IV disease with 82.8% sensitivity and 81.8% specificity.

CONCLUSION
In HFrEF, the LS value increased with NYHA class and independently determined patients with class III-IV disease. A higher LS value independently determined increased RV pressure and systolic functions.

Keywords: Heart failure with reduced ejection fraction, liver stiffness, ventricular systolic function, functional capacity

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Corresponding Author: Mevlut Koc, Türkiye
© Copyright 2018 Archives of the Turkish Society of Cardiology
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