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1.
Liver Int ; 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38888267

RESUMO

BACKGROUND AND AIMS: Chronic hepatitis delta represents a major global health burden. Clinical features of hepatitis D virus (HDV) infection vary largely between different regions worldwide. Treatment approaches are dependent on the approval status of distinct drugs and financial resources. METHODS: The Hepatitis Delta International Network (HDIN) registry involves researchers from all continents (Wranke, Liver International 2018). We here report long-term follow-up data of 648 hepatitis D patients recruited by 14 centres in 11 countries. Liver-related clinical endpoints were defined as hepatic decompensation (ascites, encephalopathy and variceal bleeding), liver transplantation, hepatocellular carcinoma or liver-related death. RESULTS: Patient data were available from all continents but Africa: 22% from Eastern Mediterranean, 32% from Eastern Europe and Central Asia, 13% from Central and Southern Europe, 14% from South Asia (mainly Pakistan) and 19% from South America (mainly Brazil). The mean follow-up was 6.4 (.6-28) years. During follow-up, 195 patients (32%) developed a liver-related clinical event after 3.5 (±3.3) years. Liver cirrhosis at baseline and a detectable HDV RNA test during follow-up were associated with a worse clinical outcome in multivariate regression analysis while patients receiving interferon alfa-based therapies developed clinical endpoints less frequently. Patients from South Asia developed endpoints earlier and had the highest mortality. CONCLUSIONS: The HDIN registry confirms the severity of hepatitis D and provides further evidence for HDV viraemia as a main risk factor for disease progression. Hepatitis D seems to take a particularly severe course in patients born in Pakistan. There is an urgent need to extend access to antiviral therapies and to provide appropriate education about HDV infection.

2.
Liver Transpl ; 30(5): 544-554, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38240602

RESUMO

The 2023 Joint International Congress of the International Liver Transplantation Society (ILTS), the European Liver and Intestine Transplant Association (ELITA), and the Liver Intensive Care Group of Europe (LICAGE) held in Rotterdam, the Netherlands, marked a significant recovery milestone for the liver transplant community after COVID-19. With 1159 participants and a surge in abstract submissions, the event focused on "Liver Disorders and Transplantation: Innovations and Evolving Indications." This conference report provides a comprehensive overview of the key themes discussed during the event, encompassing Hepatology, Anesthesia and Critical Care, Acute Liver Failure, Infectious Disease, Immunosuppression, Pediatric Liver Transplantation, Living Donor Liver Transplantation, Transplant Oncology, Surgical Approaches, and Machine Perfusion. The congress provided a platform for extensive discussions on a wide range of topics, reflecting the continuous advancements and collaborative efforts within the liver transplant community.


Assuntos
Transplante de Fígado , Criança , Humanos , Terapia de Imunossupressão , Doadores Vivos
3.
Liver Int ; 44(1): 139-147, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37787009

RESUMO

BACKGROUND & AIMS: Until recently, pegylated interferon-alfa-2a (PEG-IFNa) therapy was the only treatment option for patients infected with hepatitis D virus (HDV). Treatment with PEG-IFNa with or without tenofovir disoproxil fumarate (TDF) for 96 weeks resulted in HDV RNA suppression in 44% of patients at the end of therapy but did not prevent short-term relapses within 24 weeks. The virological and clinical long-term effects after prolonged PEG-IFNa-based treatment of hepatitis D are unknown. METHODS: In the HIDIT-II study patients (including 40% with liver cirrhosis) received 180 µg PEG-IFNa weekly plus 300 mg TDF once daily (n = 59) or 180 µg PEG-IFNa weekly plus placebo (n = 61) for 96 weeks. Patients were followed until week 356 (5 years after end of therapy). RESULTS: Until the end of follow-up, 16 (13%) patients developed liver-related complications (PEG-IFNa + TDF, n = 5 vs PEG-IFNa + placebo, n = 11; p = .179). Achieving HDV suppression at week 96 was associated with decreased long-term risk for the development of hepatocellular carcinoma (p = .04) and hepatic decompensation (p = .009). Including complications irrespective of PEG-IFNa retreatment status, the number of patients developing serious complications was similar with (3/18) and without retreatment with PEG-IFNa (16/102, p > .999) but was associated with a higher chance of HDV-RNA suppression (p = .024, odds ratio 3.9 [1.3-12]). CONCLUSIONS: Liver-related clinical events were infrequent and occurred less frequently in patients with virological responses to PEG-IFNa treatment. PEG-IFNa treatment should be recommended to HDV-infected patients until alternative therapies become available. Retreatment with PEG-IFNa should be considered for patients with inadequate response to the first course of treatment. CLINICAL TRIAL REGISTRATION: NCT00932971.


Assuntos
Antivirais , Hepatite D , Humanos , Tenofovir/efeitos adversos , Antivirais/efeitos adversos , Seguimentos , Resultado do Tratamento , Quimioterapia Combinada , Recidiva Local de Neoplasia , Hepatite D/tratamento farmacológico , Polietilenoglicóis/efeitos adversos , Vírus Delta da Hepatite/genética , RNA Viral
4.
North Clin Istanb ; 10(4): 524-526, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37719253

RESUMO

Anastomosing hemangioma of the liver (AHL) is a very rare condition and limited to a few cases. It is often confused with well-differentiated angiosarcomas and causes overtreatment. In this report, we present a 53-year-old female patient diagnosed with AHL. Since the tumor is rarely seen, it is important to define well the imaging and pathological features for preventing unnecessary surgeries and related morbidities.

5.
Hepatol Forum ; 4(2): 78-81, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37250927

RESUMO

This study is written to report a case of 67-year-old female with known autoimmune hepatitis (AIH) who developed balance and walking difficulties. Clinical and imaging investigations were more suggestive of AIH suffering from lymphoproliferative disease. To identify the underlying suspected lymphoproliferative disease, series of brain scans were performed, which showed multiple brain lesions. This is a report on a striking case of multiple contrast enhanced brain lesions discovered in an AIH patient that was resolved upon withdrawal of azathioprine. Many side effects of azathioprine are acknowledged around the world; however, to the very best of our knowledge, an article on azathioprine inducing suspected malignancy was never reported.

6.
Transplantation ; 106(9): 1738-1744, 2022 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-35676871

RESUMO

After a 1-y absence due to the coronavirus disease 2019 pandemic, the 26th Annual Congress of the International Liver Transplantation Society was held from May 15 to 18, 2021, in a virtual format. Clinicians and researchers from all over the world came together to share their knowledge on all the aspects of liver transplantation (LT). Apart from a focus on LT in times of coronavirus disease 2019, featured topics of this year's conference included infectious diseases in LT, living donation, machine perfusion, oncology, predictive scoring systems and updates in anesthesia/critical care, immunology, radiology, pathology, and pediatrics. This report presents highlights from invited lectures and a review of the select abstracts. The aim of this report, generated by the Vanguard Committee of International Liver Transplantation Society, is to provide a summary of the most recent developments in clinical practice and research in LT.


Assuntos
Anestesiologia , COVID-19 , Transplante de Fígado , Criança , Humanos , Perfusão
7.
J Hepatol ; 72(6): 1088-1096, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31981727

RESUMO

BACKGROUND & AIMS: Hepatocellular carcinoma (HCC) may develop in patients with chronic hepatitis (CHB) even after 5 years of oral therapy and cannot be easily predicted. We assessed predictors of HCC development and the need for HCC surveillance in this setting. METHODS: Of 1,951 adult Caucasians with CHB included in the PAGE-B cohort, 1,427 (73%) had completed >5 years of follow-up under therapy without developing HCC by year 5. Median follow-up was 8.4 years from treatment onset. Points-based risk scores were developed to predict HCC risk after year 5. RESULTS: In years 5-12, HCC was diagnosed in 33/1,427 (2.3%) patients with cumulative incidences of 2.4%, 3.2% and 3.8% at 8, 10 and 12 years, respectively. Older age or age >50 years, baseline cirrhosis and liver stiffness (LSM) ≥12 kPa at year 5 were independently associated with increased HCC risk. The HCC incidence was lower in non-cirrhotics than cirrhotics at baseline with year-5 LSM <12; among cirrhotics at baseline, it was lower in those with year-5 LSM <12 than ≥12 kPa. CAGE-B score was based on age at year 5 and baseline cirrhosis in relation to LSM at year 5 and SAGE-B score was based only on age and LSM at year 5 (c-index = 0.809-0.814, 0.805-0.806 after bootstrap validation). Both scores offered 100% negative predictive values for HCC development in their low risk groups. CONCLUSIONS: In Caucasians with CHB, the HCC risk after the first 5 years of antiviral therapy depends on age, baseline cirrhosis status and LSM at year 5. CAGE-B and particularly SAGE-B represent simple and reliable risk scores for HCC prediction and surveillance beyond year 5 of therapy. LAY SUMMARY: In Caucasians with chronic hepatitis B, the risk of hepatocellular carcinoma after the first 5 years of entecavir or tenofovir therapy depends on age, baseline cirrhosis status and liver stiffness at year 5, which can provide simple and reliable risk scores for hepatocellular carcinoma prediction and surveillance beyond year 5. In patients with cirrhosis at baseline, liver stiffness <12 kPa at year 5 is associated with lower HCC risk, but surveillance may be still required.


Assuntos
Antivirais/administração & dosagem , Carcinoma Hepatocelular/epidemiologia , Guanina/análogos & derivados , Vírus da Hepatite B/genética , Hepatite B Crônica/tratamento farmacológico , Hepatite B Crônica/etnologia , Neoplasias Hepáticas/epidemiologia , Tenofovir/administração & dosagem , População Branca , Administração Oral , Adulto , Idoso , Carcinoma Hepatocelular/etiologia , DNA Viral/sangue , DNA Viral/genética , Feminino , Seguimentos , Guanina/administração & dosagem , Antígenos de Superfície da Hepatite B/sangue , Hepatite B Crônica/complicações , Hepatite B Crônica/virologia , Humanos , Incidência , Cirrose Hepática/complicações , Neoplasias Hepáticas/etiologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Resultado do Tratamento , Adulto Jovem
8.
Transplant Proc ; 51(7): 2434-2438, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31474298

RESUMO

Owing to impaired immune function, surgical procedures, and multiple hospitalizations, patients with end-stage liver disease are at risk for numerous infectious complications while waiting for transplantation. Infection in transplant recipients remains the main cause of mortality and morbidity, despite advances in surgical techniques and the development of new repressive agents. The purpose of this study is to examine the infections that develop during the pretransplantion period in live donor liver transplant recipients and their effect on post-transplant clinical outcomes. The retrospective analysis of adult live donor liver transplant recipients in the last 4 years was conducted at Ankara University Hospital, a 1900-bed tertiary-care university hospital, in Ankara, Turkey. Demographic characteristics, preoperative infections, and clinical outcomes were analyzed. Patients were divided into 2 groups according to whether they had developed an infection before transplantation. The diagnoses were based on clinical, laboratory, and microbiological findings. Statistical analyses were performed using Stata version 9.0 (StataCorp, College Station, Tex., United States), and P < .05 were considered statistically significant. In univariate analyses, having diabetes mellitus or a pretransplant infection, the number of pretransplant infection attacks, the need for a reoperation, and developing a post-transplant infection were the statistically significant factors associated with 1-year mortality (P < .001, χ2 test). In multivariate analyses, diabetes mellitus (Odds ratio [OR] = 7.44, 95% confidence interval [CI], .03-45.79; P = .013), reoperation (OR = .33, 95% CI, .25-2.20; P < .001), having a pretransplantation infection (OR = 12.47, 95% CI, .011-87.67; P = .013), and the number of pretransplantation infection attacks (OR = .028, 95% CI, .013-.47; P < .001) were found to be statistically significant risk factors for 1-year mortality. Our study showed the effect of pretransplantation infections on post-transplant morbidity but not on rejection or mortality. According to the situation of patients, manageable pretransplantation infection is not an absolute contraindication for liver transplantation. Awareness of the increased risk for post-transplant infections and fast-acting antimicrobial coverage are the most important facts for patient survival.


Assuntos
Doença Hepática Terminal/complicações , Infecções/mortalidade , Transplante de Fígado/mortalidade , Doadores Vivos , Complicações Pós-Operatórias/mortalidade , Adulto , Contraindicações de Procedimentos , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/etiologia , Diabetes Mellitus/mortalidade , Doença Hepática Terminal/mortalidade , Doença Hepática Terminal/cirurgia , Feminino , Hospitalização , Humanos , Infecções/etiologia , Transplante de Fígado/métodos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Período Pré-Operatório , Reoperação/estatística & dados numéricos , Estudos Retrospectivos , Fatores de Risco , Turquia , Adulto Jovem
9.
J Hepatol ; 68(6): 1129-1136, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29427727

RESUMO

BACKGROUND & AIMS: The effects of long-term antiviral therapy on survival have not been adequately assessed in chronic hepatitis B (CHB). In this 10-centre, ongoing cohort study, we evaluated the probability of survival and factors affecting survival in Caucasian CHB patients who received long-term entecavir/tenofovir therapy. METHODS: We included 1,951 adult Caucasians with CHB, with or without compensated cirrhosis and without hepatocellular carcinoma (HCC) at baseline, who received entecavir/tenofovir for ≥12 months (median, six years). Kaplan-Meier estimates of cumulative survival over time were obtained. Standardized mortality ratios (SMRs) were calculated by comparing death rates with those in the Human Mortality Database. RESULTS: The one-, five-, and eight-year cumulative probabilities were 99.7, 95.9, and 94.1% for overall survival, 99.9, 98.3, and 97.4% for liver-related survival, and 99.9, 97.8, and 95.8% for transplantation-free liver-related survival, respectively. Overall mortality was independently associated with older age and HCC development, liver-related mortality was associated with HCC development only, and transplantation-free liver-related mortality was independently associated with HCC development and lower platelet levels at baseline. Baseline cirrhosis was not independently associated with any type of mortality. Compared with the general population, in all CHB patients mortality was not significantly different (SMR 0.82), whereas it was lower in patients without HCC regardless of baseline cirrhosis (SMR 0.58) and was higher in patients who developed HCC (SMR 3.09). CONCLUSION: Caucasian patients with CHB and compensated liver disease who receive long-term entecavir/tenofovir therapy have excellent overall and liver-related eight-year survival, which is similar to that of the general population. HCC is the main factor affecting their overall mortality, and is the only factor affecting their liver-related mortality. LAY SUMMARY: Caucasian patients with chronic hepatitis B with or without compensated cirrhosis who receive long-term entecavir or tenofovir therapy have excellent overall eight-year survival, which is similar to that of the general population. Hepatocellular carcinoma is the main factor affecting their overall mortality, and is the only factor affecting liver-related mortality in this setting.


Assuntos
Antivirais/uso terapêutico , Guanina/análogos & derivados , Hepatite B Crônica/tratamento farmacológico , Hepatite B Crônica/mortalidade , Tenofovir/uso terapêutico , Adulto , Idoso , Carcinoma Hepatocelular/etiologia , Carcinoma Hepatocelular/mortalidade , Estudos de Coortes , Feminino , Seguimentos , Guanina/uso terapêutico , Hepatite B Crônica/complicações , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade
10.
Hepatology ; 66(5): 1444-1453, 2017 11.
Artigo em Inglês | MEDLINE | ID: mdl-28622419

RESUMO

Whether there is a change of hepatocellular carcinoma (HCC) incidence in chronic hepatitis B patients under long-term therapy with potent nucleos(t)ide analogues is currently unclear. We therefore assessed the HCC incidence beyond year 5 of entecavir/tenofovir (ETV/TDF) therapy and tried to determine possible factors associated with late HCC occurrence. This European, 10-center, cohort study included 1,951 adult Caucasian chronic hepatitis B patients without HCC at baseline who received ETV/TDF for ≥1 year. Of them, 1,205 (62%) patients without HCC within the first 5 years of therapy have been followed for 5-10 (median, 6.8) years. HCCs have been diagnosed in 101/1,951 (5.2%) patients within the first 5 years and 17/1,205 (1.4%) patients within 5-10 years. The yearly HCC incidence rate was 1.22% within and 0.73% after the first 5 years (P = 0.050). The yearly HCC incidence rate did not differ within and after the first 5 years in patients without cirrhosis (0.49% versus 0.47%, P = 0.931), but it significantly declined in patients with cirrhosis (3.22% versus 1.57%, P = 0.039). All HCCs beyond year 5 developed in patients older than 50 years at ETV/TDF onset. Older age, lower platelets at baseline and year 5, and liver stiffness ≥12 kPa at year 5 were independently associated with more frequent HCC development beyond year 5 in multivariable analysis. No patient with low Platelets, Age, Gender-Hepatitis B score at baseline or year 5 developed HCC. CONCLUSION: The HCC risk decreases beyond year 5 of ETV/TDF therapy in Caucasian chronic hepatitis B patients, particularly in those with compensated cirrhosis; older age (especially ≥50 years), lower platelets, and liver stiffness ≥12 kPa at year 5 represent the main risk factors for late HCC development. (Hepatology 2017;66:1444-1453).


Assuntos
Antivirais/administração & dosagem , Carcinoma Hepatocelular/epidemiologia , Hepatite B Crônica/complicações , Neoplasias Hepáticas/epidemiologia , Adulto , Idoso , Carcinoma Hepatocelular/prevenção & controle , Carcinoma Hepatocelular/virologia , Estudos de Coortes , Europa (Continente)/epidemiologia , Feminino , Guanina/administração & dosagem , Guanina/análogos & derivados , Hepatite B Crônica/tratamento farmacológico , Humanos , Incidência , Neoplasias Hepáticas/prevenção & controle , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Tenofovir/administração & dosagem , População Branca
11.
Liver Int ; 37(2): 196-204, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27428078

RESUMO

BACKGROUND & AIMS: Identifying advanced fibrosis in chronic hepatitis delta patients and thus in need of urgent treatment is crucial. To avoid liver biopsy, non-invasive fibrosis scores may be helpful but have not been evaluated for chronic hepatitis delta yet. METHODS: We evaluated eight non-invasive fibrosis scores in 100 HDV RNA-positive patients with available central histological reading. New cut-off values were calculated by using Receiver Operating Characteristics and Youden indexes. Predictors for the presence of ISHAK F3-6 were revealed by t-tests or Mann-Whitney tests. RESULTS: None of the tested scores had an area under the curve (AUROC) > 0.8 and performed according to our predefined requirements of a sensitivity of >80% and a positive predictive value (PPV) >90% - even after adaption. However, the ELF score was able to identify advanced fibrosis with a high sensitivity (93%) and PPV (81%), but relies on expensive extracellular matrix markers with bad availability in many endemic regions of HDV. Thus, we developed a novel non-invasive approach and identified low cholinesterase (P=.002), low albumin (P=.041), higher gamma glutamyl transferase, as well as older age (P<.001) as predictors of fibrosis resulting in the Delta Fibrosis Score (DFS). The DFS performed with a sensitivity of 85% and PPV of 93% with an AUROC of 0.87. CONCLUSIONS: Existing non-invasive fibrosis scores are either impracticable or do not perform well in chronic hepatitis delta patients. However, the new Delta Fibrosis Score is the first non-invasive fibrosis score specifically developed for chronic hepatitis delta and requires only standard parameters.


Assuntos
Hepatite D Crônica/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/virologia , Fígado/patologia , Adulto , Biomarcadores/sangue , Biópsia , Ensaios Clínicos Fase II como Assunto , Progressão da Doença , Feminino , Alemanha , Hepatite D Crônica/patologia , Vírus Delta da Hepatite , Humanos , Cirrose Hepática/patologia , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Valor Preditivo dos Testes , Curva ROC , Ensaios Clínicos Controlados Aleatórios como Assunto , Índice de Gravidade de Doença , Adulto Jovem , gama-Glutamiltransferase/sangue
12.
Clin Transplant ; 30(10): 1216-1221, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27409074

RESUMO

BACKGROUND: The aim of this study was to determine the long-term efficacy of nucleos(t)ide analog (NA) and low-dose hepatitis B immunoglobulin (HBIG) combination treatment for preventing post-transplant hepatitis B virus (HBV) recurrence. METHODS: A total of 296 patients with HBV-associated liver disease who underwent liver transplantation (LT) were enrolled. A combination of a daily NA and low-dose HBIG was used after LT. RESULTS: The median follow-up period was 46 months. HBV recurrence occurred in eight patients. The cumulative probability of HBV recurrence at 1, 3, 5, and 7 years was 1%, 3%, 3%, and 4%, respectively. Seven were on lamivudine (LMV) or adefovir dipivoxil (ADV), or LMV and ADV and HBIG combination treatment and one entecavir (ETV) and HBIG. With Cox regression analysis, HBV recurrence was determined to be associated with the presence of hepatocellular cancer (HCC) prior to LT (HR: 12.3, P=.02). Overall, 44 patients died. Survival was significantly better in the ETV or tenofovir disoproxil fumarate (TDF) and HBIG group than the other group (P<.001). CONCLUSION: The combination of ETV or TDF and low-dose HBIG achieved a more favorable prophylaxis against HBV recurrence after LT. The presence of HCC prior to LT was associated with post-transplant HBV recurrence.


Assuntos
Antivirais/uso terapêutico , Hepatite B Crônica/prevenção & controle , Imunoglobulinas/uso terapêutico , Fatores Imunológicos/uso terapêutico , Transplante de Fígado , Complicações Pós-Operatórias/prevenção & controle , Adenina/análogos & derivados , Adenina/uso terapêutico , Administração Oral , Adulto , Idoso , Esquema de Medicação , Quimioterapia Combinada , Feminino , Seguimentos , Guanina/análogos & derivados , Guanina/uso terapêutico , Hepatite B Crônica/etiologia , Humanos , Estimativa de Kaplan-Meier , Lamivudina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Organofosfonatos/uso terapêutico , Modelos de Riscos Proporcionais , Recidiva , Estudos Retrospectivos , Tenofovir/uso terapêutico , Resultado do Tratamento
13.
Acta Radiol ; 57(3): 271-8, 2016 03.
Artigo em Inglês | MEDLINE | ID: mdl-25855666

RESUMO

BACKGROUND: Many imaging methods have been defined for quantification of hepatic steatosis in non-alcoholic fatty liver disease (NAFLD). However, studies comparing the efficiency of magnetic resonance imaging-proton density fat fraction (MRI-PDFF), magnetic resonance spectroscopy (MRS), and liver histology for quantification of liver fat content are limited. PURPOSE: To compare the efficiency of MRI-PDFF and MRS in the quantification of liver fat content in individuals with NAFLD. MATERIAL AND METHODS: A total of 19 NAFLD patients underwent MRI-PDFF, MRS, and liver biopsy for quantification of liver fat content. The MR examinations were performed on a 1.5 HDx MRI system. The MRI protocol included T1-independent volumetric multi-echo gradient-echo imaging with T2* correction and spectral fat modeling and MRS with STEAM technique. RESULTS: A close correlation was observed between liver MRI-PDFF- and histology- determined steatosis (r = 0.743, P < 0.001) and between liver MRS- and histology-determined steatosis (r = 0.712, P < 0.001), with no superiority between them (ƶ = 0.19, P = 0.849). For quantification of hepatic steatosis, a high correlation was observed between the two MRI methods (r = 0.986, P < 0.001). MRI-PDFF and MRS accurately differentiated moderate/severe steatosis from mild/no hepatic steatosis (P = 0.007 and 0.013, respectively), with no superiority between them (AUCMRI-PDFF = 0.881 ± 0.0856 versus AUCMRS = 0.857 ± 0.0924, P = 0.461). CONCLUSION: Both MRI-PDFF and MRS can be used for accurate quantification of hepatic steatosis.


Assuntos
Fígado/patologia , Imageamento por Ressonância Magnética , Espectroscopia de Ressonância Magnética , Hepatopatia Gordurosa não Alcoólica/patologia , Adulto , Feminino , Humanos , Masculino , Prótons , Reprodutibilidade dos Testes , Índice de Gravidade de Doença
14.
J Hepatol ; 64(4): 800-6, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26678008

RESUMO

BACKGROUND & AIMS: Risk scores for hepatocellular carcinoma (HCC) developed in Asians offer poor-moderate predictability in Caucasian patients with chronic hepatitis B (CHB). This nine center cohort study aimed to develop and validate an accurate HCC risk score in Caucasian CHB patients treated with the current oral antivirals, entecavir/tenofovir. METHODS: We included 1815 adult Caucasians with CHB and no HCC at baseline who received entecavir/tenofovir for ⩾12 months. Using data from eight centers (derivation dataset, n=1325), a HCC risk score was developed based on multivariable Cox models and points system for simplification. Harrell's c-index was used as discrimination, bootstrap for internal validation and the data from the 9(th) and largest center (validation dataset, n=490) for external validation. RESULTS: The 5-year cumulative HCC incidence rates were 5.7% and 8.4% in the derivation and validation dataset, respectively. In the derivation dataset, age, gender, platelets and cirrhosis were independently associated with HCC. The PAGE-B score was developed based on age, gender and platelets (c-index=0.82, 0.81 after bootstrap validation). The addition of cirrhosis did not substantially improve the discrimination (c-index=0.84). The predictability of PAGE-B score was similar (c-index=0.82) in the validation dataset. Patients with PAGE-B ⩽9, 10-17, ⩾18 had 5-year cumulative HCC incidence rates of 0%, 3%, 17% in the derivation and 0%, 4%, 16% in the validation dataset. CONCLUSION: PAGE-B, which is based only on baseline patients' age, gender and platelets, represents a simple and reliable score for prediction of the 5-year HCC risk in Caucasian CHB patients under entecavir/tenofovir.


Assuntos
Antivirais/uso terapêutico , Carcinoma Hepatocelular/etiologia , Hepatite B Crônica/tratamento farmacológico , Neoplasias Hepáticas/etiologia , Adulto , Idoso , Estudos de Coortes , Feminino , Guanina/administração & dosagem , Guanina/análogos & derivados , Hepatite B Crônica/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Risco , Tenofovir/administração & dosagem
16.
Lancet Infect Dis ; 15(10): 1167-1174, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26189433

RESUMO

BACKGROUND: Therapies for chronic hepatitis delta virus (HDV) infection are unsatisfactory. Prenylation is essential for HDV and inhibition abrogates HDV production in experimental models. In a proof-of-concept study, we aimed to assess the effect on HDV RNA levels, safety, and tolerability of the prenylation inhibitor lonafarnib in patients with chronic delta hepatitis. METHODS: In this phase 2A double-blind, randomised, placebo-controlled study, patients aged 18 years or older with chronic HDV infection were randomly assigned (3:1 in group 1 and 2:1 in group 2) to receive lonafarnib 100 mg (group 1) or lonafarnib 200 mg (group 2) twice daily for 28 days with 6 months' follow-up. Participants were randomised by random-number tables blocked in groups of four without stratification. Both groups enrolled six treatment participants and two placebo participants. Group 1 placebo patients received open-label lonafarnib as group 2 participants. The primary therapeutic endpoint was a decrease in HDV RNA viral titre in serum and the primary safety endpoint was the ability to tolerate the drug at the prescribed dose for the full 4-week duration, defined as drug discontinuation due to intolerance or grade 3/4 adverse events. This trial is registered with ClinicalTrials.gov, number NCT01495585. FINDINGS: Between Jan 19, 2012, and April 28, 2014, 14 patients were enrolled, of whom eight were assigned to group 1 and six were assigned to group 2. At day 28, compared with placebo, mean log HDV RNA declines from baseline were -0·73 log IU/mL in group 1 (95% CI 0·17-1·31; p=0·03) and -1·54 log IU/mL in group 2 (1·21-1·93; p<0·0001). Lonafarnib serum concentrations correlated with HDV RNA change (r(2)=0·78, p<0·0001). Model fits show that hepatitis B surface antigen (HBsAg) remained stable after a short pharmacological delay (0·75 days [SE 0·24]), lonafarnib effectiveness in blocking HDV production was greater in group 2 than in group 1 (0·952 [SE 0·06] vs 0·739 [0·05], p<0·001), and the HDV half-life was 1·62 days (0·07). There was no evidence of virological resistance. Adverse events were mainly mild to moderate with group 1 patients experiencing diarrhoea in three patients (50%) and nausea in two patients (33%) and in group 2 with all patients (100%) experiencing nausea, diarrhoea, abdominal bloating, and weight loss greater than 2 kg (mean of 4 kg). No treatment discontinuations occurred in any treatment groups. INTERPRETATION: Treatment of chronic HDV with lonafarnib significantly reduces virus levels. The decline in virus levels significantly correlated with serum drug levels, providing further evidence for the efficacy of prenylation inhibition in chronic HDV. FUNDING: National Institute of Diabetes and Digestive and Kidney Diseases and National Cancer Institute, National Institutes of Health, and Eiger Biopharmaceuticals Inc.


Assuntos
Antivirais/administração & dosagem , Antivirais/efeitos adversos , Hepatite D Crônica/tratamento farmacológico , Piperidinas/administração & dosagem , Piperidinas/efeitos adversos , Piridinas/administração & dosagem , Piridinas/efeitos adversos , Administração Oral , Adulto , Antivirais/farmacocinética , Antivirais/farmacologia , Método Duplo-Cego , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Feminino , Vírus Delta da Hepatite/isolamento & purificação , Humanos , Masculino , Pessoa de Meia-Idade , Piperidinas/farmacocinética , Piperidinas/farmacologia , Placebos/administração & dosagem , Plasma/química , Prenilação/efeitos dos fármacos , Piridinas/farmacocinética , Piridinas/farmacologia , RNA Viral/sangue , Resultado do Tratamento , Carga Viral
17.
Clin Gastroenterol Hepatol ; 13(13): 2342-49.e1-2, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26044319

RESUMO

BACKGROUND & AIMS: Interferon is the only effective treatment for chronic hepatitis D virus (HDV) infection. No rules have been set for stopping treatment based on viral kinetics. We analyzed data from an international study of hepatitis D treatment to identify factors associated with outcomes of pegylated interferon treatment, with and without adefovir. METHODS: We analyzed data from the Hep-Net-International Delta Hepatitis Intervention Trial on 50 patients with compensated liver disease who tested positive for anti-HDV and HDV RNA. Subjects received pegylated interferon α 2a, with adefovir or placebo, or only adefovir, for 48 weeks. Twenty-four weeks after treatment ended, 41 patients were evaluated for levels of HDV RNA and DNA, liver enzymes, and hepatitis B surface antigen (HBsAg); liver biopsy specimens were analyzed for fibrosis. Response to therapy was defined as end-of-treatment response or post-treatment week 24 virologic response. In both cases virologic response was associated with undetectable HDV RNA levels. Patients with less than a 1 log decrease in HDV RNA at the end of treatment were considered null responders. RESULTS: Based on univariate and multivariate analysis, the level of HDV RNA at week 24 of treatment was associated more strongly with response to therapy than other factors analyzed. The level of HBsAg at week 24 of treatment was associated with a response to therapy only in univariate analysis. Lack of HDV RNA at week 24 of treatment, or end of treatment, identified responders with positive predicted values of 71% and 100%, respectively. At 24 weeks after treatment, a decrease in HDV RNA level of less than 1 log, combined with no decrease in HBsAg level, identified null responders with a positive predictive value of 83%. A decrease in HDV RNA level of more than 2 log at week 24 of treatment identified null responders with a negative predictive value of 95%. CONCLUSIONS: Based on an analysis of data from a large clinical trial, the level of HDV RNA at week 24 of treatment with pegylated interferon, with or without adefovir for 48 weeks, can identify patients who will test negative for HDV RNA 24 weeks after the end of treatment. This information can be used to help physicians manage patients receiving therapy for chronic hepatitis D.


Assuntos
Antivirais/uso terapêutico , Hepatite D Crônica/tratamento farmacológico , Vírus Delta da Hepatite/isolamento & purificação , Interferon-alfa/uso terapêutico , Polietilenoglicóis/uso terapêutico , RNA Viral/sangue , Carga Viral , Adenina/análogos & derivados , Adenina/uso terapêutico , Adulto , Biópsia , DNA Viral/sangue , Feminino , Antígenos de Superfície da Hepatite B/sangue , Vírus Delta da Hepatite/genética , Humanos , Cirrose Hepática/patologia , Masculino , Pessoa de Meia-Idade , Organofosfonatos/uso terapêutico , Placebos/administração & dosagem , Proteínas Recombinantes/uso terapêutico , Transaminases/sangue , Resultado do Tratamento
18.
Ann Nucl Med ; 29(5): 426-30, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25783289

RESUMO

AIM: In this study, it was aimed to explore the prognostic factors in patients who received selective internal radiation therapy for hepatocellular cancer. MATERIALS AND METHODS: A retrospective evaluation was made of 28 (24 male, 4 female, mean age 65.4 ± 6.8 years) hepatocellular cancer patients who received selective internal radiation therapy with Y-90 resin microspheres. Using Cox proportional hazards regression analysis, the relationship between age, gender, MELD score, serum albumin and AFP levels, number of liver lesions, size of the largest lesion, absence of (18)F-FDG uptake, maximum standardized uptake value and overall survival times was analyzed. RESULTS: Treatment was applied to the right lobe in 22 and both in 6 patients. Mean treatment dose was 1.5 ± 0.2 GBq. Number of liver lesions were 1, <5 and multiple in 16, 5 and 7 patients, respectively, and the mean size of the largest lesion was 41.5 mm (min-max 15-160 mm). While (18)F-FDG uptake was seen in 24 patients, liver lesions were hypometabolic in 4 patients. Mean SUVmax of liver lesions was calculated as 5.3 ± 0.3. During the mean 17.8 (min-max 2-39) months follow-up period, 19 patients died. Median survival time was computed as 18 ± 5 months (95% CI 8.1-27.8). Age (p = 0.04), serum AFP level (p = 0.03) and size of the largest lesion (p = 0.02) had a significant negative effect on survival according to the Cox proportional hazards regression analysis. CONCLUSION: Age, serum AFP level and the size of the largest liver lesion have a negative significant effect on survival of hepatocellular cancer patients who received selective internal radiation therapy.


Assuntos
Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/radioterapia , Fatores Etários , Idoso , Biomarcadores Tumorais/metabolismo , Feminino , Fluordesoxiglucose F18 , Seguimentos , Humanos , Fígado/metabolismo , Fígado/patologia , Fígado/efeitos da radiação , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Imagem Multimodal , Tomografia por Emissão de Pósitrons , Prognóstico , Compostos Radiofarmacêuticos , Estudos Retrospectivos , Albumina Sérica/metabolismo , Análise de Sobrevida , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Radioisótopos de Ítrio/uso terapêutico
19.
World J Nucl Med ; 14(1): 51-2, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25709546

RESUMO

Palliation of bone metastases in hepatocellular carcinoma (HCC) is sometimes difficult. Systemic pharmaceuticals have been successfully used for the palliation of bone metastasis for many years. Safety of these agents in HCC is not known completely. We presented a male patient with decompensated liver cirrhosis with HCC. Multifocal bone metastases developed in this patient and he had refractory bone pain. We treated this patient with Sm-153 (samarium) after obtaining patient's consent. Two days after treatment, he experienced dyspnea and we detected a massive hemorrhagic pericardial effusion. He died due to this unexpected bleeding. We should use this radiopharmaceutical treatment cautiously in these cytopenic cirrhotic patients.

20.
J Hepatol ; 62(2): 363-70, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25195548

RESUMO

BACKGROUND & AIMS: The risk of hepatocellular carcinoma (HCC) in Caucasian patients with chronic hepatitis B (CHB), treated with entecavir (ETV) or tenofovir (TDF), is unclear. We evaluated the incidence and predictors of HCC and the accuracy of existing HCC risk scores in Caucasian CHB patients receiving ETV/TDF. METHODS: This large, multicentre, retrospective cohort study included 1666 adult Caucasian CHB patients under ETV/TDF for 39 months. CHB without cirrhosis, compensated and decompensated cirrhosis were present in 67%, 39%, and 3% of patients, respectively. The predictability of baseline parameters and three risk scores (GAG-HCC, CU-HCC, and REACH-B), developed in Asian patients, was assessed. RESULTS: The cumulative probability of HCC was 1.3%, 3.4%, and 8.7% at year-1, year-3, and year-5 after ETV/TDF onset. Older age and lower platelets were strong independent HCC predictors in the total population and in the subgroups of cirrhotic and non-cirrhotic patients, while liver disease severity was an independent HCC predictor in the total population and in the cirrhotics. GAG-HCC, CU-HCC, and REACH-B risk scores were associated with HCC development only in the univariable but not in the multivariable analyses and offered poor to modest predictability. CONCLUSIONS: HCC can still develop in Caucasian CHB patients treated with ETV/TDF. Besides the well-known predictors of HCC, such as older age, male gender and more advanced liver disease, lower platelets represent an independent factor of higher HCC risk. The applicability and predictability of HCC risk scores developed in Asian patients are poor or modest in Caucasian CHB patients, for whom different risk scores are required.


Assuntos
Adenina/análogos & derivados , Carcinoma Hepatocelular/etnologia , Guanina/análogos & derivados , Neoplasias Hepáticas/etnologia , Organofosfonatos/uso terapêutico , População Branca , Adenina/uso terapêutico , Adulto , Antivirais/uso terapêutico , Carcinoma Hepatocelular/etiologia , Feminino , Seguimentos , Grécia/epidemiologia , Guanina/uso terapêutico , Hepatite B Crônica/tratamento farmacológico , Hepatite B Crônica/etnologia , Humanos , Incidência , Neoplasias Hepáticas/etiologia , Masculino , Pessoa de Meia-Idade , Países Baixos/epidemiologia , Estudos Retrospectivos , Inibidores da Transcriptase Reversa/uso terapêutico , Fatores de Risco , Espanha/epidemiologia , Tenofovir , Fatores de Tempo , Turquia/epidemiologia
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