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J Viral Hepat. 2011 Jul;18(7):e200-5. doi:
10.1111/j.1365-2893.2010.01428.x. Epub 2011 Jan 7.
Significant changes in liver stiffness measurements in patients with
chronic hepatitis B: 3-year follow-up study.
Fung J, Lai CL, Wong DK, Seto WK, Hung I, Yuen MF.
Source
Department of Medicine, The University of Hong Kong, Queen Mary Hospital,
Hong Kong, China.
Abstract
Summary. For patients with chronic hepatitis B (CHB) infection, changes
in liver stiffness measurement (LSM) over time are not known. We examined
changes longitudinally in a cohort of patients. Four hundred and twenty-six
patients with CHB underwent transient elastography. Patients were followed
regularly, and repeat elastography was performed at 3 years. Hepatitis
serology, viral load and routine liver biochemistry were monitored. Of the
426 patients, 38 (9%) were hepatitis B e-antigen (HBeAg)-positive, 293
(69%) were HBeAg-negative and 95 (22%) were patients with prior hepatitis B
surface antigen (HBsAg) seroclearance. A total of 110 patients received
oral antiviral therapy. There was a significant decline of LSMs at the
follow-up measurement compared to baseline (6.1 vs 7.8 kPa respectively,
P = 0.002) in treated patients who had elevated alanine aminotransferase
(ALT) at baseline and subsequent normalization after 3 years (normal ALT
limit being 30 U/L for males and 19 U/L for females). In nontreated
patients, only the patients with persistently normal ALT at both time
points had significantly lower LSMs at the follow-up measurement compared
to baseline: 4.9 vs 5.3 kPa, respectively, in patients who remained
positive for HBsAg (P = 0.005) and 5.1 vs 5.4 kPa, respectively, in
patients who had HBsAg seroclearance (P = 0.026). In patients who
remained positive for HBsAg, independent factors associated with a
significant decline in LSM of ≥1 kPa included antiviral therapy
(P = 0.011) and the ALT levels at the follow-up time point
(P = 0.024). Thus, in patients with CHB, a significant decline in LSM
after 3 years was observed in treated patients with ALT normalization and
in untreated patients who had persistently normal ALT. Antiviral therapy
and follow-up ALT levels were independent significant factors associated
with a decline in LSM.
© 2011 Blackwell Publishing Ltd.
PMID: 21692933 [PubMed - in process] |
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