Abstract
Background
Cirrhosis increases a patient’s risk of developing postoperative liver failure (PLF). Liver stiffness (LS), assessed by two-dimensional shear wave elastography (SWE), indicates liver fibrosis with high accuracy. Whether LS is superior to portal hypertension (PHT) in predicting PLF remains to be studied.
Methods
The study enrolled 280 patients who underwent hepatectomy for hepatocellular carcinoma from July 2015 to July 2016. All patients received preoperative assessments for LS, PHT, and serum markers of liver fibrosis in addition to other clinicopathological tests. Risk factors for grade A and grade B (or greater) PLF were subjected to univariate and multivariate analysis and receiver operating characteristic curve analysis.
Results
Fifty-five patients (19.6%) experienced PLF. The cutoff value of LS for predicting cirrhosis was 10.1 kPa. Multivariate analysis identified LS, hyaluronic acid, IV collagen, and the presence of splenomegaly as independent predictors of PLF. The cutoff value of LS for predicting PLF and grade B (or greater) PLF was 11.75 and 11.9 kPa, respectively. LS was superior to PHT in predicting PLF or greater than grade B PLF (0.72 vs. 0.60, 0.76 vs. 0.59, P < 0.05).
Conclusion
LS measured by SWE can predict risk of PLF with greater accuracy than PHT.
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Acknowledgements
The authors thank Xianjing Zhang M.A., a statistician at the Statistical Analysis Division of Shanghai Medical Insurance Administration Center, for advice on statistical analysis.
This work was supported by grants from the Leading Investigator Program of Shanghai municipal government (2016), the National Key Basic Research Program (973 project) (2015CB554005) from the Ministry of Science and Technology of China, the National Natural Science Foundation of China (81472672), and the Natural Science Foundation of Shanghai (17ZR1405400).
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S.Y.H., Z.C.H., and Z.G.D. performed analyses of the data and wrote the manuscript. S.G.M., Z.X.D., and H.C. collected the data. Z.J., F.J., and D.H. edited the manuscript. R.N. and S.H.C. conceived the study and wrote the manuscript. All authors reviewed the manuscript.
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Shen, Y., Zhou, C., Zhu, G. et al. Liver Stiffness Assessed by Shear Wave Elastography Predicts Postoperative Liver Failure in Patients with Hepatocellular Carcinoma. J Gastrointest Surg 21, 1471–1479 (2017). https://doi.org/10.1007/s11605-017-3443-9
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DOI: https://doi.org/10.1007/s11605-017-3443-9