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Prediction of Liver Steatosis Applying a New Score in Subjects from the Brazilian Longitudinal Study of Adult Health. J Clin Gastroenterol 2020; 54:e1-e10. [PMID: 29505553 DOI: 10.1097/mcg.0000000000001007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
GOALS To develop a noninvasive algorithm for diagnosis of liver steatosis and to compare its diagnostic value with available predictive models. BACKGROUND Liver steatosis represents the most frequent liver disease worldwide. STUDY This cross-sectional study analyzed data from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Patients were randomly divided into training (n=6571) and validation (n=3286) cohort. Abdominal ultrasound (US), used to grade steatosis, and overnight fasting blood tests were performed at the same day. Fatty Liver Index (FLI), Hepatic Steatosis Index, and Nonalcoholic Fatty Liver Disease-Liver Fat Score were calculated. A backward stepwise multivariate logistic regression analysis was used to develop the new predictive model, Steato-ELSA. RESULTS In total, 9857 subjects [58% female, age=51 (interquartile range, 45 to 58) years, body mass index=26.4 (23.9 to 29.6) Kg/m] were included. Body mass index, waist circumference, homeostasis model of assessment of insulin resistance, transaminases, and triglycerides were independently associated with steatosis in the multivariate model (Hosmer-Lemeshow P=0.279). In the validation cohort, the area under the receiver-operator characteristics (95% confidence interval) for prediction of mild and moderate steatosis were: (i) 0.768 (0.751-0.784) and 0.829 (0.810-0.848) for Steato-ELSA; (ii) 0.762 (0.745-0.779) and 0.819 (0.799-0.838) for Fatty Liver Index; (iii) 0.743 (0.727-0.761) and 0.800 (0.779-0.822) for Hepatic Steatosis Index; and (iv) 0.719 (0.701-0.737) and 0.769 (0.747-0.791) for Nonalcoholic Fatty Liver Disease-Liver Fat Score. Steato-ELSA performed significantly better than other models and yielded sensitivity (Se)/specificity (Sp) (95% confidence interval): (i) for mild steatosis (score ≥0.386): Se=65.6% (63.0-68.3) and Sp=73.7% (71.8-75.6); (ii) for moderate steatosis (score ≥0.403): Se=83.5% (80.0-86.9) and Sp=68.7% (67.0-70.4). CONCLUSIONS Steato-ELSA is an accurate and inexpensive tool that uses simple parameters to identify individuals at high risk of liver steatosis.
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Winters AC, Mittal R, Schiano TD. A review of the use of transient elastography in the assessment of fibrosis and steatosis in the post-liver transplant patient. Clin Transplant 2019; 33:e13700. [PMID: 31441967 DOI: 10.1111/ctr.13700] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/21/2019] [Accepted: 08/18/2019] [Indexed: 12/13/2022]
Abstract
Liver biopsy is considered the gold standard method for diagnosing and staging liver disease, particularly in the post-liver transplant setting. Given the invasive nature of biopsy, alternate means for accurately assessing liver fibrosis and steatosis are preferred especially as the number of patients with fatty liver disease is increasing. Transient elastography has been validated as a useful tool for evaluation of liver fibrosis, as has controlled attenuation parameter index as a tool for assessing steatosis. It is a non-invasive, rapid, and highly reproducible approach to demonstrate the presence of fibrosis among non-transplant patients with chronic liver disease of various etiologies. However, it has not yet found wide acceptance in liver transplant recipients. There are few published studies evaluating the merits and applicability of transient elastography to assess allografts after liver transplantation. We review the published data on the use of transient elastography with concurrent controlled attenuation parameter in liver transplant recipients and recommend its greater use to follow allograft function over time.
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Affiliation(s)
- Adam C Winters
- Vatche and Tamar Manoukian Division of Digestive Diseases, University of California Los Angeles, Los Angeles, CA, USA
| | - Rasham Mittal
- Transplant Hepatology, Southern California Permanente Medical Group, Kaiser Permanente, Los Angeles, CA, USA
| | - Thomas D Schiano
- Department of Medicine, Division of Liver Diseases, Recanati/Miller Transplantation Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Shiha GE, El-Etreby S, Bahgat M, Hamed M, El Sherbini M, Ghoneem EA, Zalata K, Soliman RE, El Basiouny MA, Mikhail NN. Chronic Hepatitis C Patients with Obesity: Do we Need two Operators for Accurate Evaluation of Liver Stiffness? Ann Hepatol 2018; 17:795-801. [PMID: 30145567 DOI: 10.5604/01.3001.0012.3138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND AIM Transient elastography is gaining popularity as a non-invasive method for predicting liver fibrosis, but inter observer agreement and factors influencing reproducibility have not been adequately assessed. MATERIAL AND METHODS This cross-sectional study was conducted at Specialized Medical Hospital and the Egyptian Liver Foundation, Mansoura, Egypt. The inclusion criteria were: age older than 18 years and chronic infection by hepatitis C. The exclusion criteria were the presence of ascites, pacemaker or pregnancy. Three hundred and fifty-six patients participated in the study. Therefore, 356 pairs of exams were done by two operators on the same day. RESULTS The overall inter observer agreement ICC was 0.921. The correlation the two operators was excellent (Spearman's value q = 0.808, p < 0.001). Inter-observer reliability values were κ = 0.557 (p < 0.001). A not negligible discordance of fibrosis staging between operators was observed (87 cases, 24.4%). Discordance of at least one stage and for two or more stages of fibrosis occurred in 60 (16.9%) and 27 cases (7.6%) respectively. Obesity (BMI ≥ 30 kg/m2) is the main factor associated with discordance (p = 0.002). CONCLUSION Although liver stiffness measurement has had an excellent correlation between the two operators, TE presented an inter-observer variability that may not be negligible.
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Affiliation(s)
- Gamal E Shiha
- Egyptian Liver Research Institute and Hospital (ELRIH), Sherbin, El Mansoura, Egypt
| | - Shahira El-Etreby
- Hepatology and Gastroenterology Unit, Internal Medicine. Department, Faculty of Medicine, Mansoura University, Egypt
| | - Mounir Bahgat
- Hepatology and Gastroenterology Unit, Internal Medicine. Department, Faculty of Medicine, Mansoura University, Egypt
| | - Magdy Hamed
- Hepatology and Gastroenterology Unit, Internal Medicine. Department, Faculty of Medicine, Mansoura University, Egypt
| | - Mohamed El Sherbini
- Hepatology and Gastroenterology Unit, Internal Medicine. Department, Faculty of Medicine, Mansoura University, Egypt
| | - Elsayed A Ghoneem
- Hepatology and Gastroenterology Unit, Internal Medicine. Department, Faculty of Medicine, Mansoura University, Egypt
| | - Khaled Zalata
- Pathology Department, Faculty of Medicine, Mansoura University, Egypt
| | - Reham E Soliman
- Egyptian Liver Research Institute and Hospital (ELRIH), Sherbin, El Mansoura, Egypt
| | | | - Nabiel Nh Mikhail
- Egyptian Liver Research Institute and Hospital (ELRIH), Sherbin, El Mansoura, Egypt
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Latent Class Analysis of Noninvasive Methods and Liver Biopsy in Chronic Hepatitis C: An Approach without a Gold Standard. BIOMED RESEARCH INTERNATIONAL 2017; 2017:8252980. [PMID: 29057268 PMCID: PMC5615978 DOI: 10.1155/2017/8252980] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 07/30/2017] [Accepted: 08/03/2017] [Indexed: 12/11/2022]
Abstract
Aims To evaluate the applicability of the Latent Class Analysis (LCA) and accuracy of transient elastography (TE), aspartate-to-platelet-ratio-index (APRI), enhanced liver fibrosis (ELF), and liver biopsy (LB) for liver fibrosis assessment in a model without a gold standard. Methods Significant fibrosis was defined as TE ≥ 7.1 kPa, APRI ≥ 1.5, ELF ≥ 9.37, or LB METAVIR F ≥ 2. Cirrhosis was defined as TE ≥ 12.5 kPa, APRI ≥ 2.0, ELF ≥ 10.31, or LB as METAVIR F = 4. Results 117 patients with chronic hepatitis C were included. In the LCA, for significant fibrosis the sensitivities and specificities (95% CI) were 0.92 (0.86–0.98) and 0.79 (0.72–0.86) for TE; 0.47 (0.40–0.54) and 0.99 (0.95–1.00) for APRI; 0.81 (0.74–0.88) and 0.78 (0.71–0.85) for ELF; and 0.86 (0.68–1.00) and 0.91 (0.79–1.00) for LB. For cirrhosis, the sensitivities and specificities were 0.92 (0.76–1.00) and 0.94 (0.91–0.97) for TE; 0.57 (0.37–0.77) and 0.97 (0.93–1.00) for APRI; 0.94 (0.84–1.00) and 0.88 (0.82–0.94) for ELF; and 0.30 (0.12–0.48) and 1.00 for LB. Conclusion LCA was useful to evaluate accuracy of methods for liver fibrosis staging. Sensitivities and specificities of noninvasive methods were increased in LCA compared to the use of LB as the gold standard.
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Staugaard B, Christensen PB, Mössner B, Hansen JF, Madsen BS, Søholm J, Krag A, Thiele M. Feasibility of transient elastography versus real-time two-dimensional shear wave elastography in difficult-to-scan patients. Scand J Gastroenterol 2016; 51:1354-9. [PMID: 27310486 DOI: 10.1080/00365521.2016.1193217] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Transient elastography (TE) is hampered in some patients by failures and unreliable results. We hypothesized that real time two-dimensional shear wave elastography (2D-SWE), the FibroScan XL probe, and repeated TE exams, could be used to obtain reliable liver stiffness measurements in patients with an invalid TE examination. METHODS We reviewed 1975 patients with 5764 TE exams performed between 2007 and 2014, to identify failures and unreliable exams. Fifty-four patients with an invalid TE at their latest appointment entered a comparative feasibility study of TE vs. 2D-SWE. RESULTS The initial TE exam was successful in 93% (1835/1975) of patients. Success rate increased from 89% to 96% when the XL probe became available (OR: 1.07, 95% CI 1.06-1.09). Likewise, re-examining those with a failed or unreliable TE led to a reliable TE in 96% of patients. Combining availability of the XL probe with TE re-examination resulted in a 99.5% success rate on a per-patient level. When comparing the feasibility of TE vs. 2D-SWE, 96% (52/54) of patients obtained a reliable TE, while 2D-SWE was reliable in 63% (34/54, p < 0.001). The odds of a successful 2D-SWE exam decreased with higher skin-capsule distance (OR = 0.77, 95% CI 0.67-0.98). CONCLUSIONS Transient elastography can be accomplished in nearly all patients by use of the FibroScan XL probe and repeated examinations. In difficult-to-scan patients, the feasibility of TE is superior to 2D-SWE.
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Affiliation(s)
- Benjamin Staugaard
- a Department of Infectious Diseases , Odense University Hospital , Odense , Denmark ;,b Institute of Clinical Research, University of Southern Denmark , Odense , Denmark
| | - Peer Brehm Christensen
- a Department of Infectious Diseases , Odense University Hospital , Odense , Denmark ;,b Institute of Clinical Research, University of Southern Denmark , Odense , Denmark
| | - Belinda Mössner
- a Department of Infectious Diseases , Odense University Hospital , Odense , Denmark
| | - Janne Fuglsang Hansen
- a Department of Infectious Diseases , Odense University Hospital , Odense , Denmark ;,b Institute of Clinical Research, University of Southern Denmark , Odense , Denmark
| | - Bjørn Stæhr Madsen
- b Institute of Clinical Research, University of Southern Denmark , Odense , Denmark ;,c Department of Gastroenterology and Hepatology , Odense University Hospital , Odense , Denmark
| | - Jacob Søholm
- d Department of Medicine , Lillebaelt Hospital , Kolding , Denmark
| | - Aleksander Krag
- b Institute of Clinical Research, University of Southern Denmark , Odense , Denmark ;,c Department of Gastroenterology and Hepatology , Odense University Hospital , Odense , Denmark
| | - Maja Thiele
- b Institute of Clinical Research, University of Southern Denmark , Odense , Denmark ;,c Department of Gastroenterology and Hepatology , Odense University Hospital , Odense , Denmark ;,e OPEN, Odense Patient Data Exploratory Network , Odense University Hospital , Odense , Denmark
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Abstract
Hepatic fibrosis develops or progresses in 25 % of patients with autoimmune hepatitis despite corticosteroid therapy. Current management regimens lack reliable noninvasive methods to assess changes in hepatic fibrosis and interventions that disrupt fibrotic pathways. The goals of this review are to indicate promising noninvasive methods to monitor hepatic fibrosis in autoimmune hepatitis and identify anti-fibrotic interventions that warrant evaluation. Laboratory methods can differentiate cirrhosis from non-cirrhosis, but their accuracy in distinguishing changes in histological stage is uncertain. Radiological methods include transient elastography, acoustic radiation force impulse imaging, and magnetic resonance elastography. Methods based on ultrasonography are comparable in detecting advanced fibrosis and cirrhosis, but their performances may be compromised by hepatic inflammation and obesity. Magnetic resonance elastography has excellent performance parameters for all histological stages in diverse liver diseases, is uninfluenced by inflammatory activity or body habitus, has been superior to other radiological methods in nonalcoholic fatty liver disease, and may emerge as the preferred instrument to evaluate fibrosis in autoimmune hepatitis. Promising anti-fibrotic interventions are site- and organelle-specific agents, especially inhibitors of nicotinamide adenine dinucleotide phosphate oxidases, transforming growth factor beta, inducible nitric oxide synthase, lysyl oxidases, and C-C chemokine receptors types 2 and 5. Autoimmune hepatitis has a pro-fibrotic propensity, and noninvasive radiological methods, especially magnetic resonance elastography, and site- and organelle-specific interventions, especially selective antioxidants and inhibitors of collagen cross-linkage, may emerge to strengthen current management strategies.
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Munteanu M, Tiniakos D, Anstee Q, Charlotte F, Marchesini G, Bugianesi E, Trauner M, Romero Gomez M, Oliveira C, Day C, Dufour J, Bellentani S, Ngo Y, Traussnig S, Perazzo H, Deckmyn O, Bedossa P, Ratziu V, Poynard T. Diagnostic performance of FibroTest, SteatoTest and ActiTest in patients with NAFLD using the SAF score as histological reference. Aliment Pharmacol Ther 2016; 44:877-89. [PMID: 27549244 PMCID: PMC5113673 DOI: 10.1111/apt.13770] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/19/2016] [Accepted: 07/27/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Blood tests of liver injury are less well validated in non-alcoholic fatty liver disease (NAFLD) than in patients with chronic viral hepatitis. AIMS To improve the validation of three blood tests used in NAFLD patients, FibroTest for fibrosis staging, SteatoTest for steatosis grading and ActiTest for inflammation activity grading. METHODS We pre-included new NAFLD patients with biopsy and blood tests from a single-centre cohort (FibroFrance) and from the multicentre FLIP consortium. Contemporaneous biopsies were blindly assessed using the new steatosis, activity and fibrosis (SAF) score, which provides a reliable and reproducible diagnosis and grading/staging of the three elementary features of NAFLD (steatosis, inflammatory activity) and fibrosis with reduced interobserver variability. We used nonbinary-ROC (NonBinAUROC) as the main endpoint to prevent spectrum effect and multiple testing. RESULTS A total of 600 patients with reliable tests and biopsies were included. The mean NonBinAUROCs (95% CI) of tests were all significant (P < 0.0001): 0.878 (0.864-0.892) for FibroTest and fibrosis stages, 0.846 (0.830-0.862) for ActiTest and activity grades, and 0.822 (0.804-0.840) for SteatoTest and steatosis grades. FibroTest had a higher NonBinAUROC than BARD (0.836; 0.820-0.852; P = 0.0001), FIB4 (0.845; 0.829-0.861; P = 0.007) but not significantly different than the NAFLD score (0.866; 0.850-0.882; P = 0.26). FibroTest had a significant difference in median values between adjacent stage F2 and stage F1 contrarily to BARD, FIB4 and NAFLD scores (Bonferroni test P < 0.05). CONCLUSIONS In patients with NAFLD, SteatoTest, ActiTest and FibroTest are non-invasive tests that offer an alternative to biopsy, and they correlate with the simple grading/staging of the SAF scoring system across the three elementary features of NAFLD: steatosis, inflammatory activity and fibrosis.
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Affiliation(s)
| | - D. Tiniakos
- Liver Research GroupInstitute of Cellular MedicineNewcastle UniversityNewcastle‐upon‐TyneUK,Laboratory of Histology & EmbryologyMedical SchoolNational & Kapodistrian University of AthensGreece
| | - Q. Anstee
- Liver Research GroupInstitute of Cellular MedicineNewcastle UniversityNewcastle‐upon‐TyneUK
| | - F. Charlotte
- Groupe Hospitalier Pitié Salpêtrière APHPSorbonne UniversitésUPMC Univ Paris 06INSERM, UMR_S 938 & Institute of Cardiometabolism and Nutrition (ICAN)ParisFrance
| | | | | | - M. Trauner
- Medizinischen Universitaet WienViennaAustria
| | | | - C. Oliveira
- Department of Gastroenterology (LIM‐07)University of São Paulo School of MedicineSão PauloBrazil
| | - C. Day
- Liver Research GroupInstitute of Cellular MedicineNewcastle UniversityNewcastle‐upon‐TyneUK
| | | | - S. Bellentani
- GastroenterologiaAzienda USL di Modena Reggio EmiliaModenaItaly
| | | | | | | | | | - P. Bedossa
- Assistance Publique‐Hôpitaux de Parishôpital BeaujonUniversity Paris‐DiderotParisFrance
| | - V. Ratziu
- Groupe Hospitalier Pitié Salpêtrière APHPSorbonne UniversitésUPMC Univ Paris 06INSERM, UMR_S 938 & Institute of Cardiometabolism and Nutrition (ICAN)ParisFrance
| | - T. Poynard
- Groupe Hospitalier Pitié Salpêtrière APHPSorbonne UniversitésUPMC Univ Paris 06INSERM, UMR_S 938 & Institute of Cardiometabolism and Nutrition (ICAN)ParisFrance
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Friedrich-Rust M, Poynard T, Castera L. Critical comparison of elastography methods to assess chronic liver disease. Nat Rev Gastroenterol Hepatol 2016; 13:402-11. [PMID: 27273167 DOI: 10.1038/nrgastro.2016.86] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Staging of liver fibrosis and diagnosis, or exclusion, of early compensated liver cirrhosis are important in the treatment decisions and surveillance of patients with chronic liver disease. Good diagnostic accuracy, increased availability and the possibility to perform follow-up examinations led to the implementation of noninvasive methods into clinical practice. Noninvasive tests are increasingly included in national and international guidelines, leaving liver biopsy reserved for patients with unexplained discordance or suspected additional aetiologies of liver disease. In addition to staging of liver fibrosis, data on the prognostic value of these methods have increased in the past few years and are of great importance for patient care. This Review focuses on elastography methods for noninvasive assessment of liver fibrosis, disease severity and prognosis. Although liver elastography started with transient elastography, at present all large ultrasonography companies offer an elastography technique integrated in their machines. The goal of this Review is to summarize the methodological problems of noninvasive tests in general, in addition to providing an overview on currently available techniques and latest developments in liver elastography.
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Affiliation(s)
- Mireen Friedrich-Rust
- Department of Internal Medicine, J.W. Goethe-University Hospital, Theodor-Stern-Kai 7, Frankfurt 60590, Germany
| | - Thierry Poynard
- Assistance Publique-Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Hepatology Department, 47-83 Boulevard de l'Hôpital, Paris 75013, France.,Université Pierre et Marie Curie, INSERM, UMR-S 938, 57 Boulevard de l'Hôpital, Paris 75013, France
| | - Laurent Castera
- Department of Hepatology, Hôpital Beaujon, Assistance Publique-Hôpitaux de Paris, 100 Boulevard du General Leclerc, Clichy 92110, France.,Université Paris VII, INSERM UMR 1149, Centre de Recherche sur l'Inflammation, 16 Rue Huchard, Paris 75018, France
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Perazzo H, Fernandes FF, Soares JC, Fittipaldi J, Cardoso SW, Grinsztejn B, Veloso VG. Learning curve and intra/interobserver agreement of transient elastography in chronic hepatitis C patients with or without HIV co-infection. Clin Res Hepatol Gastroenterol 2016; 40:73-82. [PMID: 26056050 DOI: 10.1016/j.clinre.2015.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 03/18/2015] [Accepted: 04/28/2015] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVES Liver stiffness measurement (LSM) by transient elastography has been validated as a noninvasive method to stage liver fibrosis. Few studies have evaluated the learning curve of this method and its reproducibility has led to controversy results. We aimed to evaluate the intra- and interobserver agreement of transient elastography as well as its learning curve for definition of an experimented operator. METHODS We retrospectively analyzed 922 examinations performed in 544 patients during a training program of transient elastography. Patients with chronic hepatitis C with or without HIV co-infection that had two examinations by the training operator (intraobserver analysis; n=125) or examination by both training and experimented operators (interobserver analysis; n=151) in the same day were included. LSM was converted to METAVIR score: <7.1 as F0F1, 7.1-9.4 as F2, 9.5-12.4, as F3 and >12.4 kPa as F4. RESULTS The overall intra- and interobserver intraclass correlation coefficient [ICC 95% CI] were 0.926 (0.901-0.951) and 0.912 (0.885-0.939), respectively. Measurements were correlated [Spearman's] in intra- [0.906, P<0.0001] and interobserver [0.907, P<0.0001] analysis. Reliability values [kappa (SE)] were k=0.74 (0.09) and k=0.85 (0.08) for fibrosis stages F ≥ 2 and k=0.77 (0.09) and k=0.75 (0.08) for cirrhosis in intra- and interobserver analysis, respectively. Agreement was improved when operator's experience was higher than 100 exams. However, it was observed discordance for fibrosis staging between examinations in a quarter of patients. CONCLUSION Although there was a considerable discrepancy on fibrosis staging between examinations and a small power, transient elastography had an acceptable reproducibility in our population. Performance of at least 100 examinations should be used to define an experimented operator.
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Affiliation(s)
- Hugo Perazzo
- National Institute of Infectious Disease - Fundação Oswaldo Cruz, Laboratory of clinical research on STD/AIDS, Rio de Janeiro, Brazil.
| | - Flavia F Fernandes
- Bonsucesso Federal Hospital, Gastroenterology Department, Rio de Janeiro, Brazil
| | - João Carlos Soares
- National Institute of Infectious Disease - Fundação Oswaldo Cruz, Laboratory of clinical research on STD/AIDS, Rio de Janeiro, Brazil
| | - Juliana Fittipaldi
- National Institute of Infectious Disease - Fundação Oswaldo Cruz, Laboratory of clinical research on STD/AIDS, Rio de Janeiro, Brazil
| | - Sandra W Cardoso
- National Institute of Infectious Disease - Fundação Oswaldo Cruz, Laboratory of clinical research on STD/AIDS, Rio de Janeiro, Brazil
| | - Beatriz Grinsztejn
- National Institute of Infectious Disease - Fundação Oswaldo Cruz, Laboratory of clinical research on STD/AIDS, Rio de Janeiro, Brazil
| | - Valdiléa G Veloso
- National Institute of Infectious Disease - Fundação Oswaldo Cruz, Laboratory of clinical research on STD/AIDS, Rio de Janeiro, Brazil
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Houot M, Ngo Y, Munteanu M, Marque S, Poynard T. Systematic review with meta-analysis: direct comparisons of biomarkers for the diagnosis of fibrosis in chronic hepatitis C and B. Aliment Pharmacol Ther 2016; 43:16-29. [PMID: 26516104 PMCID: PMC4737301 DOI: 10.1111/apt.13446] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 08/05/2015] [Accepted: 10/05/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND Blood tests and transient elastography (TE), proposed as alternatives to biopsy for identifying advanced fibrosis (METAVIR-stage-F2 or greater) or cirrhosis, have never been compared using an intention to diagnose approach, with direct comparisons only, and Bayesian approach. AIM To permit more appropriate comparisons. METHODS From an overview of articles (2002-2014), we selected studies that directly compared the diagnostic accuracy of FibroTest, aspartate aminotransferase-platelet ratio index (APRI), FIB4 or TE, with biopsy as a reference, in patients with chronic hepatitis C (CHC) or B (CHB). Investigators abstracted and checked study details and quality by using pre-defined criteria. Bayesian method in intention to diagnose was the primary outcome. RESULTS Of 1321 articles identified, 71 studies including 77 groups according to aetiology (All-CB) were eligible: 37 Only-C, 28 Only-B and 12 Mixed-C-B. There were 185 direct comparisons between the area under the ROC curves (AUROCs), 99 for the diagnosis of advanced fibrosis and 86 for cirrhosis. In All-CB, Bayesian analyses revealed significant AUROCs differences in identifying advanced fibrosis in favour of FibroTest vs. TE [credibility interval: 0.06(0.02-0.09)], FibroTest vs. APRI [0.05 (0.03-0.07)] and for identifying cirrhosis TE vs. APRI [0.07 (0.02-0.13)] and FIB4 vs. APRI [0.04(0.02-0.05)]. No differences were observed between TE and FibroTest, for identifying cirrhosis in All-CB, and in sub-groups (Only-C, Only-B, Mixed-CB) for both cirrhosis and fibrosis. CONCLUSIONS In CHC and CHB, APRI had lower performances than FIB-4, TE and FibroTest. TE had lower performance than FibroTest for identifying advanced fibrosis in All-CB, without significant difference for identifying cirrhosis in all groups.
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Affiliation(s)
| | | | | | | | - T. Poynard
- Hepatology DepartmentAssistance Publique‐Hôpitaux de ParisHôpital Pitié‐SalpêtrièreParisFrance,INSERM & Université Pierre et Marie Curie ‐ Univ Paris 06UMR_S 938Centre de Recherche Saint‐Antoine & Institute of Cardiometabolism and Nutrition (ICAN)ParisFrance
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11
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Perazzo H, Veloso VG, Grinsztejn B, Hyde C, Castro R. Factors That Could Impact on Liver Fibrosis Staging by Transient Elastography. Int J Hepatol 2015; 2015:624596. [PMID: 26770833 PMCID: PMC4684863 DOI: 10.1155/2015/624596] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/09/2015] [Accepted: 11/26/2015] [Indexed: 12/15/2022] Open
Abstract
Transient elastography (TE) based on liver stiffness measurement (LSM) is one of the most validated noninvasive methods for liver fibrosis staging in patients with chronic liver diseases. This method is painless, has no potential complications, is rapid (<10 min), and can be performed at the patient's bedside. However, several points should be considered when interpreting TE results. This review aims to discuss the critical points that might influence liver stiffness and TE results. Spectrum bias and the impact of the prevalence of fibrosis stages should be taken into account when interpreting the studies that validated this method using liver biopsy as a gold-standard. LSM might be influenced by nonfasting status, flare of transaminases, heart failure, extrahepatic cholestasis, presence of steatosis, aetiology of liver disease, type and position of probe, and operator's experience. In addition, interobserver variability can impact on the management of patients with chronic liver diseases. TE should be performed by an experienced operator (>100 exams), in a 3-hour fasting status, and its results should be handled by specialist clinicians that are aware of the limitations of this method.
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Affiliation(s)
- Hugo Perazzo
- Evandro Chagas National Institute of Infectious Disease (INI), Oswaldo Cruz Foundation (FIOCRUZ), Laboratory of Clinical Research on STD/AIDS, Avenida Brasil 4365, 21040-900 Manguinhos, RJ, Brazil
| | - Valdilea G. Veloso
- Evandro Chagas National Institute of Infectious Disease (INI), Oswaldo Cruz Foundation (FIOCRUZ), Laboratory of Clinical Research on STD/AIDS, Avenida Brasil 4365, 21040-900 Manguinhos, RJ, Brazil
| | - Beatriz Grinsztejn
- Evandro Chagas National Institute of Infectious Disease (INI), Oswaldo Cruz Foundation (FIOCRUZ), Laboratory of Clinical Research on STD/AIDS, Avenida Brasil 4365, 21040-900 Manguinhos, RJ, Brazil
| | - Chris Hyde
- Institute of Health Research, Peninsula Technology Assessment Group (PenTAG), Evidence Synthesis and Modelling for Health Improvement (ESMI), University of Exeter Medical School, University of Exeter, St. Luke's Campus, South Cloisters, EX1 2LU Exeter, UK
| | - Rodolfo Castro
- Evandro Chagas National Institute of Infectious Disease (INI), Oswaldo Cruz Foundation (FIOCRUZ), Laboratory of Clinical Research on STD/AIDS, Avenida Brasil 4365, 21040-900 Manguinhos, RJ, Brazil
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Shear wave elastography: An accurate technique to stage liver fibrosis in chronic liver diseases. Diagn Interv Imaging 2015; 97:91-9. [PMID: 26655870 DOI: 10.1016/j.diii.2015.11.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/29/2015] [Accepted: 11/02/2015] [Indexed: 12/19/2022]
Abstract
OBJECTIVES The goals of this study were to assess the diagnostic accuracy of shear wave elastography (SWE) using the results of histopathological analysis as a standard of reference and compare the results of SWE and those of transient elastography (TE) to the degree of fibrosis as evaluated by histomorphometry. PATIENTS AND METHODS Adult patients who were scheduled to undergo liver biopsy were prospectively enrolled in the study. The diagnostic performances of SWE were assessed using AUROC curve analysis according to fibrosis thresholds defined by ≥F2 (significant fibrosis), ≥F3 (advanced fibrosis) and F4 (cirrhosis). Additional analyses using the Obuchowski measures for pairwise comparisons of fibrosis stages were performed. In a subgroup of 55 patients, the relationships between stiffness as measured using SWE and TE and the percentage of fibrosis were compared using Spearman's rank coefficient. RESULTS Among the initially enrolled 170 patients, 148/170 (87%) had successful SWE acquisition and formed the study population. SWE sensitivity and specificity were respectively 85.1% and 82.7% (≥F2), 88.9% and 90.3% (≥F3), 93.3% and 98.3% (F4). The AUROC curves of SWE along with their 95% confidence intervals (CI) were respectively 0.904 (95%CI: 0.845-0.946) for fibrosis ≥F2; 0.958 (95%CI: 0.912-0.984) for fibrosis ≥F3 and 0.988 (95%CI: 0.955-0.999) for fibrosis=F4. The global Obuchowski measure was 0.953±0.007. In the subgroup study, a significant correlation was found between the percentage of fibrosis and stiffness as assessed by SWE (r=0.77; 95%CI: 0.63-0.86; P<0.0001) and by TE (r=0.65; 95%CI: 0.47-0.78; P<0.01). CONCLUSION SWE is accurate to assess liver fibrosis in patients with chronic liver disease.
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Perazzo H, Fernandes FF, Gomes A, Terra C, Perez RM, Figueiredo FAF. Interobserver variability in transient elastography analysis of patients with chronic hepatitis C. Liver Int 2015; 35:1533-9. [PMID: 24684234 DOI: 10.1111/liv.12551] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Accepted: 03/23/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Transient elastography based on liver stiffness measurement is a non-invasive method to assess hepatic fibrosis. However, interobserver variability has led to controversy over its use in fibrosis evaluation. To evaluate the interobserver variation in transient elastography in chronic hepatitis C. METHODS We performed a cross-sectional study, analysing findings from two experienced operators who each assessed 195 patients by transient elastography on the same day. Liver stiffness measurement used to define fibrosis stages, based on METAVIR score, was: <7.1 as F0F1, 7.1-9.4 as F2, 9.5-12.4, as F3 and >12.4 kPa as F4. We also assessed interobserver variation in identification of potential oesophageal varices screening based on transient elastography. RESULTS The interobserver intraclass correlation coefficient was 0.940 (95% CI 0.863-0.967) and measurements made by operators correlated [Spearman's ρ = 0.924; P < 0.001]. However, the median liver stiffness measurement assessed by first operators was higher (11.5 vs 9.8 kPa; P < 0.001). The discordance between operators was 35% for at least one stage of fibrosis and 5% for two or more stages. Interobserver reliability values were κ = 0.61 for fibrosis stages F ≥ 2 and κ = 0.80 for cirrhosis. Among the 74 patients determined to have cirrhosis by at least one operator, there was considerable discordance in identification of those with indication for oesophageal varices screening (κ values from 0.13 to 0.61) according to several cut-offs. CONCLUSION Although a high correlation of liver stiffness measurement between operators, interobserver variability in transient elastography was not negligible. This method should not be used as the only screening tool for oesophageal varices in chronic hepatitis C.
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Affiliation(s)
- Hugo Perazzo
- Hepatology Department, Assistance Publique-Hôpitaux de Paris, Hôpital Pitié Salpêtrière, Paris, France; INSERM UMR_S 938 & Université Pierre et Marie Curie, Paris, France
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Bonnard P, Elsharkawy A, Zalata K, Delarocque-Astagneau E, Biard L, Le Fouler L, Hassan AB, Abdel-Hamid M, El-Daly M, Gamal ME, El Kassas M, Bedossa P, Carrat F, Fontanet A, Esmat G. Comparison of liver biopsy and noninvasive techniques for liver fibrosis assessment in patients infected with HCV-genotype 4 in Egypt. J Viral Hepat 2015; 22:245-53. [PMID: 25073725 DOI: 10.1111/jvh.12285] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 05/22/2014] [Indexed: 12/19/2022]
Abstract
In Egypt, as elsewhere, liver biopsy (LB) remains the gold standard to assess liver fibrosis in chronic hepatitis C (CHC) and is required to decide whether a treatment should be proposed. Many of its disadvantages have led to develop noninvasive methods to replace LB. These new methods should be evaluated in Egypt, where circulating virus genotype 4 (G4), increased body mass index and co-infection with schistosomiasis may interfere with liver fibrosis assessment. Egyptian CHC-infected patients with G4 underwent a LB, an elastometry measurement (Fibroscan(©)), and serum markers (APRI, Fib4 and Fibrotest(©)). Patients had to have a LB ≥15 mm length or ≥10 portal tracts with two pathologists blinded readings to be included in the analysis. Patients with hepatitis B virus co-infection were excluded. Three hundred and twelve patients are reported. The performance of each technique for distinguishing F0F1 vs F2F3F4 was compared. The area under receiver operating characteristic curves was 0.70, 0.76, 0.71 and 0.75 for APRI, Fib-4, Fibrotest© and Fibroscan©, respectively (no influence of schistosomiasis was noticed). An algorithm using the Fib4 for identifying patients with F2 stage or more reduced by nearly 90% the number of liver biopsies. Our results demonstrated that noninvasive techniques were feasible in Egypt, for CHC G4-infected patients. Because of its validity and its easiness to perform, we believe that Fib4 may be used to assess the F2 threshold, which decides whether treatment should be proposed or delayed.
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Affiliation(s)
- P Bonnard
- Infectious Diseases, Hôpital Tenon (AP-HP), Paris, France; Unité INSERM U707, UPMC, Paris, France
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15
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Deffieux T, Gennisson JL, Bousquet L, Corouge M, Cosconea S, Amroun D, Tripon S, Terris B, Mallet V, Sogni P, Tanter M, Pol S. Investigating liver stiffness and viscosity for fibrosis, steatosis and activity staging using shear wave elastography. J Hepatol 2015; 62:317-24. [PMID: 25251998 DOI: 10.1016/j.jhep.2014.09.020] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 09/10/2014] [Accepted: 09/15/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Quantitative shear wave elastography was shown to be an effective tool for the non-invasive diagnosis and staging of chronic liver diseases. The liver shear modulus, estimated from the propagation velocity of shear waves, is correlated to the degree of fibrosis and can therefore be used for the non-invasive staging of fibrosis. METHODS We performed a clinical prospective study in a total of 120 patients with various chronic liver diseases to compare the accuracy of supersonic shear imaging (SSI), a technique based on acoustic radiation and ultrafast ultrasound imaging, to 1D transient elastography (FibroScan) for the staging and grading of fibrosis as assessed by liver biopsy. Since shear wave propagation spectroscopy can also provide additional mechanical information on soft tissues, such as viscosity, we also investigated those new mechanical parameters as possible predictors of fibrosis, steatosis, and disease activity. RESULTS SSI was successfully performed in 98.3% of patients and it was shown to be as accurate as FibroScan for the staging of fibrosis both for the whole population (N=120) and for the subgroup with viral hepatitis (n=70) (AUC=0.85 [0.77-0.96] and 0.89 [0.81-0.97] for significant fibrosis, AUC=0.90 [0.83-0.97] and 0.87 [0.75-0.98] for cirrhosis, with respect to SSI [n=68/70] and FibroScan [n=66/68]). Viscosity could also be used to stage the degree of fibrosis (AUC=0.76 [0.64-0.87] for significant fibrosis and AUC=0.87 [0.74-0.99] for cirrhosis), for the subgroup of patients with viral hepatitis (n=67/70) but was a poor predictor of disease activity and steatosis levels. CONCLUSIONS Supersonic shear imaging is a robust technique for the staging of liver fibrosis. Liver viscosity was found to be correlated with fibrosis but not to steatosis or disease activity.
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Affiliation(s)
- Thomas Deffieux
- Institut Langevin, ESPCI ParisTech, PSL University, CNRS UMR7587, INSERM U979, Paris, France.
| | - Jean-Luc Gennisson
- Institut Langevin, ESPCI ParisTech, PSL University, CNRS UMR7587, INSERM U979, Paris, France
| | - Laurence Bousquet
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Marion Corouge
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Simona Cosconea
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Dalila Amroun
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Simona Tripon
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Benoit Terris
- Service d'anatomo-pathologie, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Vincent Mallet
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Philippe Sogni
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
| | - Mickael Tanter
- Institut Langevin, ESPCI ParisTech, PSL University, CNRS UMR7587, INSERM U979, Paris, France
| | - Stanislas Pol
- Liver Unit, Hôpital Cochin, APHP, INSERM U1016, Université Paris-Descartes, Paris, France
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Poynard T, Vergniol J, Ngo Y, Foucher J, Munteanu M, Merrouche W, Colombo M, Thibault V, Schiff E, Brass CA, Albrecht JK, Rudler M, Deckmyn O, Lebray P, Thabut D, Ratziu V, de Ledinghen V. Staging chronic hepatitis C in seven categories using fibrosis biomarker (FibroTest™) and transient elastography (FibroScan®). J Hepatol 2014; 60:706-14. [PMID: 24291240 DOI: 10.1016/j.jhep.2013.11.016] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 11/15/2013] [Accepted: 11/19/2013] [Indexed: 12/18/2022]
Abstract
BACKGROUND & AIMS FibroTest™ (FT) and Transient Elastography (TE) have been validated as non-invasive markers of METAVIR fibrosis stages from F0 to F4 using biopsy, and as prognostic markers of liver related mortality in patients with chronic hepatitis C. The aim was to extend the validation of FT and TE as markers of critical steps defined by occurrence of cirrhosis without complications (F4.1), esophageal varices (F4.2), and severe complications (F4.3): primary liver cancer, variceal bleeding, or decompensation (ascites, encephalopathy, or jaundice). METHODS The updated individual data of 3927 patients (1046 cirrhotics) without complications at baseline were pooled from three prospective cohorts called "EPIC", "Paris", and "Bordeaux" cohorts. RESULTS At 5 years, among 501 patients without varices at baseline (F4.1) varices occurred in 19 patients [F4.2 incidence of 4.0% (95% CI 2.2-5.8)]. The predictive performance (AUROC) of FT was 0.77 (0.66-0.84; p<0.001). At 10 years severe complications occurred in 203 patients, [F4.3 incidence of 13.4% (9.6-17.1)], including primary liver cancer in 84 patients [6.4% (3.5-9.3)]. FT was predictive (Cox adjusted on treatment) of severe complications [AUROC 0.79 (76-82); p<0.0001], including primary liver cancer [AUROC 0.84 (80-87); p<0.0001]. Similarly TE was predictive of severe complications [AUROC 0.77 (72-81); p<0.0001], including primary liver cancer [AUROC 0.86 (81-90); p<0.0001]. CONCLUSIONS FibroTest™ and TE increase were associated with the occurrence of all severe complications including hepatocellular carcinoma, hepatic insufficiency, and variceal bleeding. FibroTest™ increase was also associated with the occurrence of esophageal varices.
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Affiliation(s)
- Thierry Poynard
- Assistance Publique Hôpitaux de Paris (AP-HP), University Pierre Marie Curie (UPMC), INSERM, UMR_S 938, Liver Center, Paris, France.
| | - Julien Vergniol
- University of Bordeaux, Bordeaux, France; Service de Biochimie Métabolique, Groupe Hospitalier Pitié-Salpêtrière (GHPS), AP-HP, Paris, France
| | - Yen Ngo
- BioPredictive, Paris, France
| | - Juliette Foucher
- University of Bordeaux, Bordeaux, France; Service de Biochimie Métabolique, Groupe Hospitalier Pitié-Salpêtrière (GHPS), AP-HP, Paris, France
| | | | - Wassil Merrouche
- University of Bordeaux, Bordeaux, France; Service de Biochimie Métabolique, Groupe Hospitalier Pitié-Salpêtrière (GHPS), AP-HP, Paris, France
| | - Massimo Colombo
- University of Milano, 1st Division of Gastroenterology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
| | | | - Eugene Schiff
- University of Miami Center for Liver Diseases, University of Miami School of Medicine, Miami, FL, USA
| | - Clifford A Brass
- Former employees Merck Sharp & Dohme Corp, Whitehouse Station, NJ, USA
| | - Janice K Albrecht
- Former employees Merck Sharp & Dohme Corp, Whitehouse Station, NJ, USA
| | - Marika Rudler
- Assistance Publique Hôpitaux de Paris (AP-HP), University Pierre Marie Curie (UPMC), INSERM, UMR_S 938, Liver Center, Paris, France
| | | | - Pascal Lebray
- Assistance Publique Hôpitaux de Paris (AP-HP), University Pierre Marie Curie (UPMC), INSERM, UMR_S 938, Liver Center, Paris, France
| | - Dominique Thabut
- Assistance Publique Hôpitaux de Paris (AP-HP), University Pierre Marie Curie (UPMC), INSERM, UMR_S 938, Liver Center, Paris, France
| | - Vlad Ratziu
- Assistance Publique Hôpitaux de Paris (AP-HP), University Pierre Marie Curie (UPMC), INSERM, UMR_S 938, Liver Center, Paris, France
| | - Victor de Ledinghen
- University of Bordeaux, Bordeaux, France; Service de Biochimie Métabolique, Groupe Hospitalier Pitié-Salpêtrière (GHPS), AP-HP, Paris, France
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Czaja AJ. Review article: The prevention and reversal of hepatic fibrosis in autoimmune hepatitis. Aliment Pharmacol Ther 2014; 39:385-406. [PMID: 24387318 DOI: 10.1111/apt.12592] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Revised: 11/29/2013] [Accepted: 12/05/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND Immunosuppressive treatment of autoimmune hepatitis can prevent or reverse hepatic fibrosis, but these anti-fibrotic effects are inconsistent secondary gains. AIM To describe the anti-fibrotic effects of current therapies for autoimmune hepatitis, discuss the pathogenic mechanisms of hepatic fibrosis that might be targeted by anti-fibrotic interventions, indicate the non-invasive diagnostic tests of hepatic fibrosis that must be validated in autoimmune hepatitis and to suggest promising treatment opportunities. METHODS Studies cited in PubMed from 1972 to 2013 for autoimmune hepatitis, hepatic fibrosis, cirrhosis, anti-fibrotic therapy and non-invasive tests of hepatic fibrosis were selected. RESULTS Hepatic fibrosis improves in 53-57% of corticosteroid-treated patients with autoimmune hepatitis; progressive fibrosis slows or is prevented in 79%; and cirrhosis may be reversed. Progressive hepatic fibrosis is associated with liver inflammation, and the inability to fully suppress inflammatory activity within 12 months is associated with progression to cirrhosis (54%) and death or need for liver transplantation (15%). Liver tissue examination remains the gold standard for assessing hepatic fibrosis, but laboratory and radiological tests may be useful non-invasive methods to measure the fibrotic response. Severe liver inflammation can confound radiological assessments, and the preferred non-invasive test in autoimmune hepatitis is uncertain. Individualised treatment adjustments and adjunctive anti-fibrotic therapies are poised for study in this disease. CONCLUSIONS The prevention and reversal of hepatic fibrosis are achievable objectives in autoimmune hepatitis. Strategies that evaluate individualised therapies adjusted to the rapidity and completeness of the inflammatory response, and the use of adjunctive anti-fibrotic interventions, must be evaluated.
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Affiliation(s)
- A J Czaja
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, MN, USA
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Efficacy of HGF carried by ultrasound microbubble-cationic nano-liposomes complex for treating hepatic fibrosis in a bile duct ligation rat model, and its relationship with the diffusion-weighted MRI parameters. Clin Res Hepatol Gastroenterol 2013; 37:602-7. [PMID: 24012221 DOI: 10.1016/j.clinre.2013.05.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2012] [Revised: 04/23/2013] [Accepted: 05/14/2013] [Indexed: 02/04/2023]
Abstract
Hepatic fibrosis is a major consequence of liver aggression. Finding novel ways for counteracting this damaging process, and for evaluating fibrosis with a non-invasive imaging approach, represent important therapeutic and diagnostic challenges. Hepatocyte growth factor (HGF) is an anti-fibrosis cell growth factor that induces apoptosis in activated hepatic stellate cells, reduces excessive collagen deposition, and stimulates hepatocyte regeneration. Thus, using HGF in gene therapy against liver fibrosis is an attractive approach. The aims of the present study were: (i) to explore the efficacy of treating liver fibrosis using HGF expression vector carried by a novel ultrasound microbubble delivery system; (ii) to explore the diagnostic interest of diffusion-weighted MRI (DWI-MRI) in evaluating liver fibrosis. We established a rat model of hepatic fibrosis. The rats were administered HGF linked to novel ultrasound micro-bubbles. Progression of hepatic fibrosis was evaluated by histopathology, hydroxyproline content, and DWI-MRI to determine the apparent diffusion coefficient (ADC). Our targeted gene therapy produced a significant anti-fibrosis effect, as shown by liver histology and significant reduction of hydroxyproline content. Moreover, using DWI-MRI, the b value (diffusion gradient factor) was equal to 300s/mm(2), and the ADC values significantly decreased as the severity of hepatic fibrosis increased. Using this methodology, F0-F2 could be distinguished from F3 and F4 (P<0.01). This is the first in vivo report of using an ultrasound microbubble-cationic nano-liposome complex for gene delivery. The data indicate that, this approach is efficient to counteract the fibrosis process. DWI-MRI appears a promising imaging technique for evaluating liver fibrosis.
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Conti F. The challenge of non-invasive evaluation of fibrosis after liver transplantation. Clin Res Hepatol Gastroenterol 2013; 37:314-5. [PMID: 23622711 DOI: 10.1016/j.clinre.2013.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 03/12/2013] [Indexed: 02/04/2023]
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Poynard T, Munteanu M, Luckina E, Perazzo H, Ngo Y, Royer L, Fedchuk L, Sattonnet F, Pais R, Lebray P, Rudler M, Thabut D, Ratziu V. Liver fibrosis evaluation using real-time shear wave elastography: applicability and diagnostic performance using methods without a gold standard. J Hepatol 2013; 58:928-35. [PMID: 23321316 DOI: 10.1016/j.jhep.2012.12.021] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 12/08/2012] [Accepted: 12/20/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Real-time shear wave elastography (SWE) is a new two-dimensional transient elastography which had no assessment of factors associated with reliability, and had limited comparisons with other validated fibrosis biomarkers. The aim was to assess the applicability and performances of SWE for the diagnosis of fibrosis as compared with FibroTest (FT) and liver stiffness measurement (LSM) by transient elastography using two probes (TE-M and TE-XL). METHODS Without a gold standard, the strength of concordance, discordance analysis and latent class analysis (LCM) were applied. RESULTS 422 patients were included. The applicability of SWE (90.0%) was significantly lower than that of FT (97.9%; p <0.0001) and did not differ from those of TE-M (90.5%) and TE-XL (90.3%); it was higher though for SWE (86%) in 22 patients with ascites vs. 55% using TE-M (p=0.04). For the diagnosis of all fibrosis stages as presumed by FT, the performance of SWE was highly significant (Obuchowski measure 0.807 ± 0.013 [m ± se]), but lower than those of TE-M (0.852; p=0.0007) and TE-XL (0.834; p=0.046). SWE had a low performance for discrimination between F0 and F1. For the diagnosis of cirrhosis using LCM, SWE specificities were all equal to 99%, and SWE sensitivities ranged from 0.47 to 0.64. For the diagnosis of non-cirrhotic stages, the results were heterogeneous. CONCLUSIONS The performance of SWE for the diagnosis of cirrhosis was similar to those of FT and TE. SWE applicability was lower than that of FT, but greater than that of TE in patients with ascites.
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Affiliation(s)
- Thierry Poynard
- Hepato-Gastroenterology, APHP UPMC Liver Center, Paris, France.
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Munteanu M, Ratziu V, Poynard T. Letter: FibroTest for staging fibrosis in non-alcoholic fatty liver disease. Aliment Pharmacol Ther 2013; 37:655-6. [PMID: 23406408 DOI: 10.1111/apt.12219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 01/02/2013] [Indexed: 12/18/2022]
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Poynard T, de Ledinghen V, Zarski JP, Stanciu C, Munteanu M, Vergniol J, France J, Trifan A, Lenaour G, Vaillant JC, Ratziu V, Charlotte F. Performances of Elasto-FibroTest(®), a combination between FibroTest(®) and liver stiffness measurements for assessing the stage of liver fibrosis in patients with chronic hepatitis C. Clin Res Hepatol Gastroenterol 2012; 36:455-63. [PMID: 22959098 DOI: 10.1016/j.clinre.2012.08.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 08/03/2012] [Indexed: 02/05/2023]
Abstract
BACKGROUND FibroTest(®) (FT), and liver stiffness measurement (LSM) are the most validated techniques for the non-invasive assessment of fibrosis in patients with chronic hepatitis C (CHC). The combination between FibroTest(®) and LSM has never been assessed using methods assuming that biopsy is not a perfect gold standard. AIM The aim was to assess the performance of a new test the Elasto-FibroTest(®) (EFT) combining FibroTest(®) and LSM. METHODS An integrated data base of 1289 patients with biopsy and 604 healthy volunteers was analyzed. EFT took into account the applicability of both tests, included two algorithms taking one for the diagnosis of advanced fibrosis (EFT-F2) and one for the diagnosis of cirrhosis (EFT-F4). Performances of EFTs were assessed by three methods: area under the ROC curve (AUROC), "Obuchowski method" (OBU) and 1 TAGS the "Latent class with random factor". RESULTS For the diagnosis of advanced fibrosis EFT-F2 performances (specificity=0.99 and sensitivity=0.83) were not greater than the performances of FibroTest(®) alone (specificity=0.93 and sensitivity=0.99). For the diagnosis of cirrhosis, EFT-F4 performances were greater than those of FibroTest(®) alone, particularly for the sensitivity (0.88 vs. 0.74); when compared with LSM, EFT-F4 performances (specificity=0.99 and sensitivity=0.99) were also greater than those of LSM alone particularly because of its lower specificity (0.92). CONCLUSION For the diagnosis of cirrhosis the Elasto-FibroTest(®) has higher performances than FibroTest(®) or FibroScan(®) alone. No improvement in performance has been observed for the diagnosis of advanced fibrosis vs. FibroTest(®) alone.
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Affiliation(s)
- Thierry Poynard
- UPMC Liver Center, AP-HP, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
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Corpechot C, Carrat F, Poujol-Robert A, Gaouar F, Wendum D, Chazouillères O, Poupon R. Noninvasive elastography-based assessment of liver fibrosis progression and prognosis in primary biliary cirrhosis. Hepatology 2012; 56:198-208. [PMID: 22271046 DOI: 10.1002/hep.25599] [Citation(s) in RCA: 210] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Accepted: 01/03/2012] [Indexed: 12/12/2022]
Abstract
UNLABELLED The development of liver fibrosis markers in primary biliary cirrhosis (PBC) is needed to facilitate the assessment of its progression and the effectiveness of new therapies. Here, we investigated the potential usefulness of transient elastography (TE) in the noninvasive evaluation of liver fibrosis stage and disease progression in PBC. We performed, first, a prospective performance analysis of TE for the diagnosis of METAVIR fibrosis stages in a diagnostic cohort of 103 patients and, second, a retrospective longitudinal analysis of repeated examinations in a monitoring cohort of 150 patients followed-up for up to 5 years. All patients were treated with ursodeoxycholic acid. Diagnostic thresholds of liver stiffness in discriminating fibrosis stages ≥ F1, ≥ F2, ≥ F3, and =F4 were 7.1, 8.8, 10.7, and 16.9 kPa, respectively. TE showed high performance and was significantly superior to biochemical markers (e.g., aspartate aminotransferase [AST]/platelet ratio, FIB-4, hyaluronic acid, AST/alanine aminotransferase ratio, and Mayo score) in diagnosing significant fibrosis, severe fibrosis, or cirrhosis. Analysis of the monitoring cohort data set using generalized linear models showed the following: (1) an overall progression rate of 0.48 ± 0.21 kPa/year (P = 0.02) and (2) no significant progression in patients with F0-F1, F2, or F3 stages, but a significant increase (4.06 ± 0.72 kPa/year; P < 0.0001) in cirrhotic patients. A cut-off value of 2.1 kPa/year was associated with an 8.4-fold increased risk of liver decompensations, liver transplantations, or deaths (P < 0.0001, Cox regression analysis). CONCLUSION TE is one of the best current surrogate markers of liver fibrosis in PBC. Over a 5-year period, on-treatment liver stiffness appears stable in most noncirrhotic PBC patients, whereas it significantly increases in patients with cirrhosis. Progression of liver stiffness in PBC is predictive of poor outcome.
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Affiliation(s)
- Christophe Corpechot
- Service d'Hépatologie, Centre de référence des Maladies Inflammatoires des Voies Biliaires, Hôpital Saint-Antoine, Assistance Publique-Hôpitaux de Paris (APHP), Paris, France.
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Carrat F. Integrating the applicability rate into the performance evaluation of noninvasive staging of liver fibrosis: a step towards a change from the "accuracy" to the "clinical" paradigm. Clin Res Hepatol Gastroenterol 2011; 35:691-2. [PMID: 22115610 DOI: 10.1016/j.clinre.2011.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Accepted: 10/14/2011] [Indexed: 02/04/2023]
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