Abstract:
BACKGROUND AND AIM:In the condition of high prevalence of non-alcoholic fatty liver disease (NAFLD), a new diagnostic algorithm to efficiently identify NAFLD patients with significant fibrosis is urgently required. We evaluated the predictive ability of the fibrosis-4 index (FIB-4 index) for significant liver fibrosis (F ≥ 2) in a cohort of Japanese patients with NAFLD. METHODS:We prospectively calculated the FIB-4 index in patients who were incidentally diagnosed as fatty liver in medical checkups and then conducted liver stiffness measurement by vibration-controlled transient elastography (VCTE) only in patients in whom the FIB-4 index was more than the low cut-off index (> 1.45). RESULTS:Of the 5929 people who underwent medical checkups, a total of 1374 people were identified as having fatty liver. Among these, we performed VCTE in 106 patients in whom the FIB-4 index was higher than 1.45. The distribution of the fibrosis stage as estimated by VCTE in the patients was as follows: F0, 52.8%; F1, 10.3%; F2, 21.6%; F3, 11.3%; and F4, 3.7%. The positive predictive value of the FIB-4 index for detecting NAFLD with significant fibrosis was 36.6%. The minimum value of the FIB-4 index was constant for each estimated fibrosis stage. CONCLUSIONS:This is the first prospective study to evaluate the usefulness of the FIB-4 index as the first step to screen NAFLD patients with significant fibrosis. In Japan, addition of one further step that combined with the FIB-4 index is necessary to meaningfully reduce the number of patients needing liver stiffness measurement or liver biopsy.
journal_name
J Gastroenterol Hepatoljournal_title
Journal of gastroenterology and hepatologyauthors
Tomeno W,Imajo K,Kuwada Y,Ogawa Y,Kikuchi M,Honda Y,Kato T,Kessoku T,Kirikoshi H,Yoneda M,Kitahora T,Saito S,Ozawa Y,Nakajima Adoi
10.1111/jgh.14559subject
Has Abstractpub_date
2019-08-01 00:00:00pages
1411-1416issue
8eissn
0815-9319issn
1440-1746journal_volume
34pub_type
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