Non-invasive assessment of liver fibrosis - Virology...
Transcript of Non-invasive assessment of liver fibrosis - Virology...
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Non-invasive assessment of liver fibrosis
Victor de Lédinghen MD PhD Bordeaux
France
Madrid 30 May 2012
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Summary
Why?
How?
When?
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Cirrhosis Normal liver
Hepatocellular carcinoma
Transplantation
Why?
Treatment Severity of cirrhosis
Prognosis
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How?
Blood sample?
Liver stiffness?
FibroScan ARFI
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Blood tests in HIV patients
APRI
FIB-4
Forns score
Fibrotest
Fibrometer
Free
AST ALT platelets..
Expensive
α2 macroglobulin, GGT,
bilirubin…
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False positive or negative
Utilize non specific serum biochemical markers
Alpha-2 macroglobulin
Haptoglobin
Gamma-glutamyl transpeptidase
Total bilirubin
Apolipoprotein A1
Drugs?
Hemolysis?
Gilbert’s syndrome?
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7
Liver stiffness in HIV patients
Stiffness
Portal fibrosis
Cholestasis
Portal blood flow
Inflammation
Steatosis?
Centrolobular fibrosis
Sinusoidal fibrosis
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Liver stiffness measurement
10 measurements
IQR < 30%
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Take home message # 1
Before making any conclusions, careful examination of the
following is required:
All parameters of blood tests
Reliable measurement of liver stiffness
In case of unreliable or doubtful results
another method should be used
A liver biopsy should be discussed
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When?
Indication of treatment
• Significant fibrosis?
• Cirrhosis?
Follow-up after treatment
Severity of cirrhosis
Prognosis
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Free or expensive blood tests?
“…demonstrated high accuracy and
accurately predicted significant
fibrosis and cirrhosis…“
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FIB-4 in HIV-HCV patients
N=173 Shire NJ et al. Clin Gastroenterol Hepatol 2009;7:471–480
Not enough!
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APRI FIB-4 FORNS in HIV-HCV patients
N=324 Tural C et al, Clin Gastroenterol Hepatol 2009;7:339–345
Not enough!
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Fibrotest in HIV-HCV patients
N=158 Sebastiani G et al. J Viral Hepat 2011;34:1202-16
Not enough!
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Blood tests in HIV-HCV patients
Calès P et al. J Hepatol 2010;53:238-44 Cacoub P et al. J Hepatol 2008;48:765-73
AU
RO
CS
Significant fibrosis
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0,6
0,65
0,7
0,75
0,8
0,85
0,9
0,95
1
Significant fibrosis Severe fibrosis Cirrhosis
Adju
sted
AU
RO
C
FibroMeter 1G Fibrotest Hepascore
Bottero J et al. J Hepatol 2009; 50:1074-83
N=108 16 cirrhosis
Blood tests in HIV-HBV patients
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Take home message # 2
Current non-invasive blood tests of fibrosis
assessment have poor discriminatory capacity in
HIV-HCV patients.
Fibrometer needs further evaluation.
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N AUC F234 AUC F4
de Lédinghen 0,97
Vergara 0,89 0,93 0,96
Macias 0,86
de Lédinghen V et al. JAIDS 2006;41:175-8 Vergara S et al. CID 2007;45:969-74 Macias J et al. J Hepatol 2008;49:916-22
Liver stiffness in HIV-HCV patients FibroScan
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Liver stiffness in HIV-HCV patients ARFI
N=158 Sebastiani G et al. J Viral Hepat 2011;34:1202-16
Not enough!
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Liver stiffness (FibroScan) in HIV-HBV patients
N=57
Miailhes P et al. J Viral Hepat 2011;18:61-69
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Take home message # 3
For the diagnosis of cirrhosis, liver stiffness
measurement using FibroScan is the best method
For the diagnosis of significant fibrosis, there is no
good method. Maybe a combination of liver stiffness
measurement + blood test could be useful.
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When?
Indication of treatment
Follow-up after treatment
Severity of cirrhosis
Prognosis
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Liver stiffness after treatment
Barreiro P et al. AVT 2007
Time (months)
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Liver stiffness measurement: a predictive factor of response to treatment?
Prometheus Index http://www.fundacionies.com/prometheusindex.php?lang=ing
Medrano J et al. CID 2010;51:1029-16
AUROC : 0.84 – 0.89
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Take home message # 4
During the follow-up of treated patients with sustained virological response, there is a decrease of biochemical tests or liver stiffness.
However, we need further studies for the interpretation of this decrease
Is it a regression of liver fibrosis?
Is it a regression of inflammation?
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When?
Indication of treatment
Follow-up after treatment
Severity of cirrhosis
Prognosis
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Liver stiffness and Hepatic Vein Pressure Gradient
Sanchez-Conde M et al. J Viral Hepat 2011;18:685-91
HIV-HCV patients N=38
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Diagnosis of oesophageal varices stage 2 or 3
AU
RO
CS
Castéral L et al. J Hepatol 2012;56:696-703
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No EV stage 2/3
No Child-Pugh B or C
No variceal bleeding
No past history of ascites
No hepatocellular carcinoma
15 75 kPa
Liver stiffness
27.5 37.5 49 54 63
Liver stiffness and severity of cirrhosis
Foucher J, et al. Gut 2006;55:403–8 EV: esophageal varices
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Liver stiffness and hepatocellular carcinoma
0 1 2 3
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
511 142 79 47 87
501 130 76 41 75
476 111 63 36 54
427 94 51 29 41
Years After Enrollment No. At risk < 10 kPa
10.1 – 15 kPa 15.1 – 20 kPa 20.1 – 25 kPa
> 25 kPa
20 < LSM < 25 kPa
LSM > 25 kPa
15 < LSM < 20 kPa 10 < LSM < 15 kPa LSM < 10 kPa
P < 0.001
Cu
mu
lati
ve I
nci
den
ce
Masuzaki R et al, Hepatology 2009;49:1954-61
866 patients with HCV infection, 3-year follow up
Hepatocellular carcinoma during follow-up: 77
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Natural history of fibrosis and cirrhosis
Garcia-Tsao G et al. Hepatology 2010;51:1-5
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2 75
Natural history of fibrosis and cirrhosis
Garcia-Tsao G et al. Hepatology 2010;51:1-5
Foucher J, et al. Gut 2006;55:403–8
Liver stiffness kPa 20
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Take home message # 5
Non-invasive methods are insufficient to confidently predict the presence of oesophageal varices in clinical practice
Liver stiffness is associated with the severity of
cirrhosis and offers a mean for rapid discrimination
of different steps of progression within the stage of
compensated cirrhosis.
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When?
Indication of treatment
Follow-up after treatmenr
Severity of cirrhosis
Prognosis
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Fibrotest and survival HCV patients
Ngo S et al, Clin Chemistry 2006;52:1887-96
N=537
Median follow-up: 5 years
Overall survival AUROC
0.76 (0.63-0.84)
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Liver stiffness and survival HCV patients
Fibrotest FibroScan
0.0
0.2
0.4
0.6
0.8
1.0
0 20 40 60
Follow-up (months)
Ove
rall
surv
ival
(%
)
P < 0.0001
< 0.75
> 0.75 > 0.80
> 0.85
> 0.90
1.0
0,8
0,6
0,4
0,2
0,0
0 20 40 60 80
Follow-up (months)
Ove
rall
surv
ival
(%
)
< 9.5 kPa > 9.5 kPa
> 30 kPa > 20 kPa
> 40 kPa
> 50 kPa
P < 0.0001
> 0.95
Vergniol J, et al. Gastroenterology 2011;140:1970–9
1457 HCV patients; follow-up 5 years
Overall survival: 91.7%
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APRI and liver related mortality HIV-HCV patients
N=303 (207 HIVHCV)
Follow-up: 3 years Nunes D et al. Am J Gastroenterol 2010;105:1346-53
<1.5
>1.5
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Survival of HIV patients with cirrhosis according to liver stiffness
194 HIV infected patients (+ HBV or HCV)
All with FS > 14.5 kPa at inclusion
Death: 5.8 yearly
Predictive factors of mortality:
MELD > 11
LSM > 28.7 kPa
Tuma P et al. AIDS 2010, 24:745–753
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Take home message # 6
Fibrotest and liver stiffness measurement are strong
predictors of survival in HCV and co-infected patients
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CONCLUSION In clinical practice
Before making any conclusions, careful examination of the
following is required:
All parameters of blood tests
Reliable measurement of liver stiffness
Current non-invasive blood tests of fibrosis assessment have
poor discriminatory capacity in HIV-HCV patients.
For the diagnosis of cirrhosis and its severity, liver stiffness
measurement using FibroScan is the best method.
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Clinical signs
Blood sample
Liver biopsy
Imaging (US, MRI, endoscopy)
Stiffness
Biomarkers
For the assessment of the severity of chronic liver diseases, we have…