hbv: non-invasive markers and usefulness of...
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HBV: Non-invasive markers and usefulness of FibroScan
Álvaro MenaHIV and Hepatitis Unit. Internal Medicine [email protected]
Non invasive markers of liver fibrosis
• Serum markers:– Directs: deposition or removal of the extracellular
matrix.• Glycoproteins: serum hyaluronate, laminin and YKL-40.
• Collagens: procollagen III N-peptide, type IV collagen.
• Matrix metalloproteases.
– Indirects:• APRI: platelets, AST.
• FORNS: platelets, cholesterol, GGT.
• FIB-4: AST, ALT, platelets.
• FibroTest: α2 macroglobulin, haptoglobin, GGT, bilirubin, ApoA1.
• Cut-off <3: F2-F4 could be excluded: NPV 90.9%, PPV 64.7%, S 98%.
– Significative fibrosis: Cut-off >0.5: S 84%, Sp 41%. Cut-off >1.5: S 49%, Sp 84%.
– Cirrhosis: Cut-off >2: S 28%, Sp 87%.
• APRI show limited value in identifying hepatitis B related significant fibrosis and cirrhosis.
HEPATOLOGY 2005;42:1437-1445
• Zeng Score:– -13.995 + 3.220 log (α2-macroglobulin) + 3.096
log (age) 2.254 log (GGT) + 2.437 log (HA).
– Cut-off <3: F2-F4 could be excluded: NPV 90.9%, PPV 64.7%, S 98%.
– Cut-off >8.7: F2-F4 could be identified: PPV 84.8%, NPV 52.4%, Sp 90.4%.
– AgHBe+, Chinese, non- routine parameters.
Non invasive markers of liver fibrosis
• Transient elastography
• Magnetic resonance
Non-invasive markers: Ins & outs
Liver Int. 2014 Feb;34 Suppl 1:91-6.
Transient elastography
• Assessing the stage of fibrosis.
• Deciding to provide or defer therapy.
• Monitoring treatment response.
• Prediction of liver descompensations.
Transient elastography
• Assessing the stage of fibrosis.
• Deciding to provide or defer therapy.
• Monitoring treatment response.
• Prediction of liver descompensations.
Transient elastography. Cut-offs
Aliment Pharmacol Ther 2011;34:353-362
Transient elastography
• Assessing the stage of fibrosis.
• Deciding to provide or defer therapy.
• Monitoring treatment response.
• Prediction of liver descompensations.
Provide or defer therapy. Inactive carriers.
• AgHBs+, AcHBe+, AgHBe-.
• PNALT.
• DNA-HBV <2.000 IU/ml (<20.000 IU/ml).
• Follow-up >1 year
J Hepatol 2012;57:196-202
Persistently normal ALT: PNALT
J Hepatol 2012;57:196-202
•Meta-analysis, 6 studies, 246 patients.
•215 patients DNA-HBV<20.000 IU/ml:
•Fibrosis: moderate 4,5%, severe 0,5%.
•DNA-HBV >2.000 IU/ml and <20.000 IU/ml:
•10% fibrosis ≥moderate. Low necroinflammatory activity.
•DNA-HBV <2.000 IU/ml: 2,5% fibrosis ≥ moderate.
Journal of Gastroenterology and Hepatology 29 (2014) 173–178
•There are few data with patients complying the inactive carrier definition of the EASL, AASLD and APASL.•We aimed:
• To evaluate the LSM with FibroScan in real inactive CHB carriers. • Determinate the prevalence of significant fibrosis and probable cirrhosis in our population.• Investigate the relationship with virological, epidemiological, and metabolic factors.
Methods
• Cross-sectional cohort study.
• Excluded patients with other hepatic comorbilities.
• Follow-up>2 years.
• Inactive carriers. DNA-HBV <2000 IU/ml.
• Clinical, ultrasonographic and laboratory evaluations.
• Significant fibrosis (≥ F2) was considered if LSM was > 7.5 kPa, and probable cirrhosis > 11.8 kPa.
Conclusions
• 25% significant fibrosis and 7% probable cirrhosis.
• CHB influences less y fibrosis development than metabolic disturbances in true inactive carriers.
• 24% MS (15-34% Spanish populations), steatosis >90%.
• Limitations.
• Impact of treatment?
Transient elastography
• Assessing the stage of fibrosis.
• Deciding to provide or defer therapy.
• Monitoring treatment response.
• Prediction of liver descompensations.
•Normal ALT: LSM<6 Kpa exclude F3-F4 and LSM >9 KPa confirm.
•ALT>x5: LSM< 7.5 exclude F3-F4 and LSM>13.5 Kpa confirm.
Transient elastography
• Assessing the stage of fibrosis.
• Deciding to provide or defer therapy.
• Monitoring treatment response.
• Prediction of liver descompensations.
Conclusions
• Limited value of serum markers in HBV infection.
• FS is useful assessing the stage of fibrosis. Elevated ALT.
• What is an inactive carrier?
• Not only HBV and not only liver in hepatic fibrosis development.
• FS can predict liver decompensations.
…Thank you