0000000000266403

AUTHOR

Philippe Halfon

showing 7 related works from this author

The impact of liver disease aetiology and the stages of hepatic fibrosis on the performance of non-invasive fibrosis biomarkers: an international stu…

2011

Aliment Pharmacol Ther 2011; 34: 1202–1216 Summary Background  Performance of non-invasive fibrosis biomarkers may be influenced by aetiology of chronic liver disease (CLD) and the stages of hepatic fibrosis, but large-scale studies are pending. Aim  To investigate the effect of aetiogy and stages of hepatic fibrosis on the performance of fibrosis biomarkers. Methods  A total of 2411 patients with compensated CLD (HCV = 75.1%, HBV = 10.5%, NASH = 7.9%, HIV/HCV = 6.5%) were consecutively enrolled in 9 centres. APRI, Forns’index, Lok index, AST-to-ALT ratio, Fib-4, platelets and Fibrotest-Fibrosure were tested against liver biopsy, considered the gold standard. The effect of the stages of hep…

medicine.medical_specialtyPathologyCirrhosisHepatologymedicine.diagnostic_testbusiness.industryGastroenterologyChronic liver diseasemedicine.diseaseGastroenterologydigestive system diseasesLiver diseaseFibrosisLiver biopsyInternal medicineBiopsymedicinePharmacology (medical)SteatohepatitisbusinessHepatic fibrosisAlimentary Pharmacology & Therapeutics
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The safe (sequential algorithm for fibrosis evaluation) biopsy: A new approach to stage fibrosis in chronic hepatitis C

2008

medicine.medical_specialtyHepatologymedicine.diagnostic_testbusiness.industryGastroenterologymedicine.diseaseGastroenterologyChronic hepatitisFibrosisInternal medicineBiopsymedicineStage (cooking)businessSequential algorithmDigestive and Liver Disease
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Comparison of three algorithms of non-invasive markers of fibrosis in chronic hepatitis C

2011

Aliment Pharmacol Ther 2012; 35: 92–104 Summary Background  Preliminary data suggest that performance of non-invasive markers for liver fibrosis in hepatitis C may improve when combined. Three algorithms based on the combination of Fibrotest, Forns’ index and AST-to-platelet ratio (APRI) have been proposed: Sequential Algorithm for Fibrosis Evaluation (SAFE biopsy); Fibropaca algorithm; Leroy algorithm. Aim  To compare three algorithms to diagnose significant fibrosis (≥F2 by METAVIR) and cirrhosis (F4). Methods  A total of 1013 HCV monoinfected cases undergoing liver biopsy were consecutively enrolled in seven centres. Fibrotest, APRI and Forns’ index were measured at the time of liver bio…

CirrhosisHepatologymedicine.diagnostic_testFibroTestbusiness.industryGastroenterologyRetrospective cohort studyHepatitis Cmedicine.diseaseFibrosisPredictive value of testsLiver biopsyBiopsymedicinePharmacology (medical)businessAlgorithmAlimentary Pharmacology & Therapeutics
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SAFE biopsy: A validated method for large-scale staging of liver fibrosis in chronic hepatitis C

2009

The staging of liver fibrosis is pivotal for defining the prognosis and indications for therapy in hepatitis C. Although liver biopsy remains the gold standard, several noninvasive methods are under evaluation for clinical use. The aim of this study was to validate the recently described sequential algorithm for fibrosis evaluation (SAFE) biopsy, which detects significant fibrosis (≥F2 by METAVIR) and cirrhosis (F4) by combining the AST-to-platelet ratio index and Fibrotest-Fibrosure, thereby limiting liver biopsy to cases not adequately classifiable by noninvasive markers. Hepatitis C virus (HCV) patients (2035) were enrolled in nine locations in Europe and the United States. The diagnosti…

Liver CirrhosisMalemedicine.medical_specialtyCirrhosisBiopsyGastroenterologyFibrosisInternal medicineBiopsymedicineHumansLiver biopsy chronic hepatitia CNeoplasm StagingRetrospective StudiesHepatitisSettore MED/12 - GastroenterologiaHepatologymedicine.diagnostic_testbusiness.industryHepatitis CHepatitis C ChronicMiddle AgedHepatologymedicine.diseaseLiver biopsyFemaleHepatic fibrosisbusinessAlgorithmsHepatology
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ITPA deficiency and ribavirin level are still predictive of anaemia in HCV–HIV-coinfected patients receiving ribavirin combined with a first-generati…

2017

Background We aimed to determine the impact of inosine triphosphatase (ITPA) deficiency on ribavirin (RBV)-induced anaemia in HIV–HCV-coinfected patients receiving a triple therapy including the haematotoxic direct-acting antiviral agent boceprevir (BOC). Methods Patients of the ANRS HC27 BocepreVIH study were genotyped for two ITPA single nucleotide polymorphisms involved in ITPA deficiency. RBV trough concentration (Ctrough) was determined at week (W)4 and W8. Impact of ITPA deficiency on anaemia, RBV Ctrough, response and haematotoxicity (grade 3/4 anaemia, erythropoietin [EPO] use, RBV dose reduction or transfusion between day [D]0 and W8) was evaluated. Impact of RBV Ctrough on anaemia…

Malemedicine.medical_specialtyGenotype[SDV]Life Sciences [q-bio]Human immunodeficiency virus (HIV)HIV Infectionsmedicine.disease_causeAntiviral AgentsGastroenterologychemistry.chemical_compoundPharmacotherapyGene FrequencyRisk FactorsInternal medicineRibavirinmedicineHumansGenetic Predisposition to DiseasePharmacology (medical)PyrophosphatasesAllelesComputingMilieux_MISCELLANEOUSPharmacologyCoinfectionbusiness.industryRibavirinAnemiaHepatitis CHepatitis C ChronicMiddle Agedmedicine.diseaseFirst generation3. Good health[SDV] Life Sciences [q-bio]Infectious DiseaseschemistryMutationCoinfectionDrug Therapy CombinationFemaleITPAbusinessMetabolism Inborn ErrorsINOSINE TRIPHOSPHATASE
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Low 25-OH vitamin D serum levels correlate with severe fibrosis in HIV-HCV co-infected patients with chronic hepatitis.

2010

Background & Aims Recent findings in hepatitis C virus (HCV)-monoinfected patients have shown a correlation between low serum levels of 25-OH vitamin D3 [25(OH)D3] and severe liver fibrosis and low sustained virologic response to therapy. Data are lacking in HIV-HCV coinfected patients. Methods One hundred and eighty nine HIV-HCV coinfected patients, who received ⩾80% of interferon (IFN) plus ribavirin therapy, were analyzed for baseline serum 25(OH)D3 levels. Correlations between serum 25(OH)D3 levels, chronic hepatitis C features, HCV virologic response to antiviral therapy, and HIV infection characteristics were analyzed. Results Mean serum 25(OH)D3 level was 18.5±9.8ng/ml, including 162…

METAVIR Fibrosis ScoreVitaminAdultLiver CirrhosisMalemedicine.medical_specialtyHepatitis C virusHIV Infectionsmedicine.disease_causeGastroenterologyAntiviral AgentsSeverity of Illness Indexchemistry.chemical_compoundInternal medicineAntiretroviral Therapy Highly ActiveSeverity of illnessRibavirinmedicineVitamin D and neurologyPrevalenceHumansVitamin DImmunodeficiencyHepatologybusiness.industryRibavirinInterferon-alphaHepatitis CHepatitis C Chronicmedicine.diseaseVitamin D DeficiencychemistryImmunologyFemaleDrug MonitoringbusinessBiomarkersJournal of hepatology
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Effect of prevalence of liver fibrosis stages in the performance of non-invasive fibrosis biomarkers in chronic liver diseases (CLDs): Results of an …

2009

medicine.medical_specialtyHepatologyFibrosisbusiness.industryLiver fibrosisInternal medicineNon invasiveGastroenterologymedicinemedicine.diseasebusinessGastroenterologyDigestive and Liver Disease
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