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1.
Gut ; 73(2): 325-337, 2024 Jan 05.
Artículo en Inglés | MEDLINE | ID: mdl-37788895

RESUMEN

OBJECTIVE: Primary sclerosing cholangitis (PSC) is characterised by bile duct strictures and progressive liver disease, eventually requiring liver transplantation. Although the pathogenesis of PSC remains incompletely understood, strong associations with HLA-class II haplotypes have been described. As specific HLA-DP molecules can bind the activating NK-cell receptor NKp44, we investigated the role of HLA-DP/NKp44-interactions in PSC. DESIGN: Liver tissue, intrahepatic and peripheral blood lymphocytes of individuals with PSC and control individuals were characterised using flow cytometry, immunohistochemical and immunofluorescence analyses. HLA-DPA1 and HLA-DPB1 imputation and association analyses were performed in 3408 individuals with PSC and 34 213 controls. NK cell activation on NKp44/HLA-DP interactions was assessed in vitro using plate-bound HLA-DP molecules and HLA-DPB wildtype versus knock-out human cholangiocyte organoids. RESULTS: NKp44+NK cells were enriched in livers, and intrahepatic bile ducts of individuals with PSC showed higher expression of HLA-DP. HLA-DP haplotype analysis revealed a highly elevated PSC risk for HLA-DPA1*02:01~B1*01:01 (OR 1.99, p=6.7×10-50). Primary NKp44+NK cells exhibited significantly higher degranulation in response to plate-bound HLA-DPA1*02:01-DPB1*01:01 compared with control HLA-DP molecules, which were inhibited by anti-NKp44-blocking. Human cholangiocyte organoids expressing HLA-DPA1*02:01-DPB1*01:01 after IFN-γ-exposure demonstrated significantly increased binding to NKp44-Fc constructs compared with unstimulated controls. Importantly, HLA-DPA1*02:01-DPB1*01:01-expressing organoids increased degranulation of NKp44+NK cells compared with HLA-DPB1-KO organoids. CONCLUSION: Our studies identify a novel PSC risk haplotype HLA-DP A1*02:01~DPB1*01:01 and provide clinical and functional data implicating NKp44+NK cells that recognise HLA-DPA1*02:01-DPB1*01:01 expressed on cholangiocytes in PSC pathogenesis.


Asunto(s)
Colangitis Esclerosante , Humanos , Haplotipos , Colangitis Esclerosante/genética , Cadenas alfa de HLA-DP/genética , Células Asesinas Naturales
2.
Surg Endosc ; 37(3): 1830-1837, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36229559

RESUMEN

OBJECTIVES: Abdominal tuberculosis (TB) is a "great mimic," and diagnosis remains challenging even for experienced clinicians. While mini-laparoscopy has already been demonstrated to be an efficient diagnostic tool for a variety of diseases, we aimed to demonstrate the feasibility of this technique in diagnosing abdominal TB. METHODS: We retrospectively included patients who underwent mini-laparoscopy at the University Medical Center Hamburg-Eppendorf between April 2010 and January 2022 for suspected abdominal TB. Demographic, clinical, and laboratory data, radiological findings as well as macroscopic, histopathologic, and microbiologic results were analyzed by chart review. RESULTS: Out of 49 consecutive patients who underwent mini-laparoscopy for suspected abdominal TB, the diagnosis was subsequently confirmed in 29 patients (59%). Among those, the median age was 30 years (range 18-86 years) and the majority were male (n = 22, 76%). Microbiological diagnosis was established in a total of 16 patients. The remaining patients were diagnosed with abdominal TB either by histopathological detection of caseating granulomas (n = 3), or clinically by a combination of typical presentation, mini-laparoscopic findings, and good response to anti-tuberculous treatment (n = 10). Bleeding from the respective puncture site occurred in 19 patients (66%) and either resolved spontaneously or was arrested with argon plasma coagulation alone (n = 10) or in combination with fibrin glue (n = 1). Minor intestinal perforation occurred in 2 patients and was treated conservatively. CONCLUSIONS: Mini-laparoscopy is a useful and safe modality for the diagnosis of abdominal TB.


Asunto(s)
Laparoscopía , Peritonitis Tuberculosa , Tuberculosis Gastrointestinal , Humanos , Masculino , Femenino , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Estudios Retrospectivos , Tuberculosis Gastrointestinal/diagnóstico , Tuberculosis Gastrointestinal/tratamiento farmacológico , Tuberculosis Gastrointestinal/cirugía , Abdomen , Laparoscopía/métodos , Peritonitis Tuberculosa/diagnóstico , Peritonitis Tuberculosa/cirugía
3.
Clin Gastroenterol Hepatol ; 20(1): 162-172.e9, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34509643

RESUMEN

BACKGROUND & AIMS: Detailed information on the immune response after second vaccination of cirrhotic patients and liver transplant (LT) recipients against severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is largely missing. We aimed at comparing the vaccine-induced humoral and T-cell responses of these vulnerable patient groups. METHODS: In this prospective cohort study, anti-SARS-CoV-2 spike-protein titers were determined using the DiaSorin LIAISON (anti-S trimer) and Roche Elecsys (anti-S RBD) immunoassays in 194 patients (141 LT, 53 cirrhosis Child-Pugh A-C) and 56 healthy controls before and 10 to 84 days after second vaccination. The spike-specific T-cell response was assessed using an interferon-gamma release assay (EUROIMMUN). A logistic regression analysis was performed to identify predictors of low response. RESULTS: After the second vaccination, seroconversion was achieved in 63% of LT recipients and 100% of cirrhotic patients and controls using the anti-S trimer assay. Median anti-SARS-CoV-2 titers of responding LT recipients were lower compared with cirrhotic patients and controls (P < .001). Spike-specific T-cell response rates were 36.6%, 65.4%, and 100% in LT, cirrhosis, and controls, respectively. Altogether, 28% of LT recipients did neither develop a humoral nor a T-cell response after second vaccination. In LT recipients, significant predictors of absent or low humoral response were age >65 years (odds ratio [OR], 4.57; 95% confidence interval [CI], 1.48-14.05) and arterial hypertension (OR, 2.50; 95% CI, 1.10-5.68), whereas vaccination failure was less likely with calcineurin inhibitor monotherapy than with other immunosuppressive regimens (OR, 0.36; 95% CI, 0.13-0.99). CONCLUSION: Routine serological testing of the vaccination response and a third vaccination in patients with low or absent response seem advisable. These vulnerable cohorts need further research on the effects of heterologous vaccination and intermittent reduction of immunosuppression before booster vaccinations.


Asunto(s)
COVID-19 , ARN Viral , Anciano , Anticuerpos Antivirales , Vacuna BNT162 , Vacunas contra la COVID-19 , Humanos , Inmunidad , Cirrosis Hepática , Estudios Prospectivos , SARS-CoV-2 , Linfocitos T , Vacunación
4.
Int J Obes (Lond) ; 45(10): 2197-2204, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-34168277

RESUMEN

BACKGROUND: Non-invasive scores, such as the non-alcoholic fatty liver disease (NAFLD) Fibrosis Score (NFS), are increasingly used for liver fibrosis assessment in patients with NAFLD. The aim of this study was to assess the applicability and reliability of non-invasive fibrosis scores in NAFLD patients with and without morbid obesity. METHODS: Three hundred sixty-eight patients with biopsy-proven NAFLD identified between January 2012 and December 2015 were studied; 225 with morbid obesity (biopsy obtained during bariatric surgery) and 143 patients without (termed as "conventional"). RESULTS: Median age was 47 years, 57% were female. Median body mass index (BMI) was 42.9 kg/m2 with significant differences between our conventional and morbidly obese patients (BMI 29.0 vs. 50.8 kg/m2, p < 0.001). Overall, 42% displayed mild/moderate and 16% advanced liver fibrosis (stage III/IV). All tested scores were significantly linked to fibrosis stage (p < 0.001 for all). FIB-4 (AUROC 0.904), APRI (AUROC 0.848), and NFS (AUROC 0.750) were identified as potent predictors of advanced fibrosis, although NFS overestimated fibrosis stage in morbid obesity. Limiting BMI to a maximum of 40 kg/m2 improved NFS' overall performance (AUROC 0.838). FIB-4 > 1.0 indicated high probability of advanced fibrosis (OR = 29.1). FIB-4 predicted advanced fibrosis independently from age, sex, BMI, and presence of morbid obesity. CONCLUSIONS: Our data suggest that FIB-4 score is an accurate predictor of advanced fibrosis in NAFLD throughout all BMI stages. Without adjustment, NFS tends to overestimate fibrosis in morbidly obese NAFLD patients. This problem may be solved by implementation of an upper BMI limit (for NFS) or adjustment of diagnostic thresholds.


Asunto(s)
Fibrosis/clasificación , Enfermedad del Hígado Graso no Alcohólico/fisiopatología , Obesidad Mórbida/complicaciones , Índice de Severidad de la Enfermedad , Adulto , Área Bajo la Curva , Índice de Masa Corporal , Femenino , Fibrosis/diagnóstico , Fibrosis/etiología , Humanos , Masculino , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico/clasificación , Curva ROC , Reproducibilidad de los Resultados
5.
Endoscopy ; 53(3): 226-234, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32894867

RESUMEN

BACKGROUND: Prophylactic endoscopic variceal band ligation (EVL) is frequently performed in patients with liver cirrhosis. The aim of our study was to identify factors associated with early upper gastrointestinal bleeding (UGIB) in cirrhosis patients after prophylactic EVL. METHODS: 787 nonemergency EVLs performed in 444 patients in two German University medical centers were analyzed retrospectively. RESULTS: Within 30 days after EVL, 38 UGIBs were observed (4.8 % of all procedures). Bilirubin levels (hazard ratio [HR] 1.5, 95 % confidence interval [CI] 1.2-2.0 for a 2-fold increase) and presence of varices grade III/IV according to Paquet (HR 2.6, 95 %CI 1.3-5.0 compared with absence or smaller sized varices) were independently associated with UGIB following EVL. International normalized ratio (INR) was associated with bleeding events in the univariate analysis but did not reach statistical significance after adjustment for bilirubin and presence of varices grade III/IV (HR 1.2, 95 %CI 0.9-1.6 for an increase by 0.25). There was no statistically significant association between platelet count or fibrinogen levels and UGIB. Substitution of coagulation products did not affect incidence of bleeding after EVL, which also applied to patients with "coagulopathy" (INR > 1.5 and/or platelet count < 50 × 109/L). No association between proton pump inhibitor therapy and post-EVL UGIB was observed. CONCLUSIONS: EVL is a safe procedure and immediate bleeding complications are rare. Serum bilirubin levels and size of varices, rather than coagulation indices, are associated with UGIB after EVL. Our data do not support the preventive substitution of blood or coagulation products.


Asunto(s)
Várices Esofágicas y Gástricas , Várices Esofágicas y Gástricas/complicaciones , Hemorragia Gastrointestinal/etiología , Hemorragia Gastrointestinal/prevención & control , Humanos , Ligadura/efectos adversos , Cirrosis Hepática/complicaciones , Estudios Retrospectivos , Factores de Riesgo
6.
Scand J Gastroenterol ; 56(7): 840-848, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34010581

RESUMEN

OBJECTIVE: Baseline liver stiffness (LS) is prognostically relevant in patients with chronic hepatitis C virus (HCV) infection but may change after successful HCV eradication. Data on post-treatment LS for a further risk stratification remain scarce. Here, we study the kinetics of LS and laboratory parameters in patients undergoing HCV treatment and analyze the association of post-treatment LS with outcome parameters. METHODS: In a cohort of 1011 chronic HCV patients undergoing DAA treatment, we identified 404 patients with sequential LS and laboratory assessments with or without viral eradication. Additionally, outcome parameters were correlated with post-treatment LS after successful HCV therapy. RESULTS: LS significantly decreased from a median of 8.8 to 6.1 kPa in 346 patients after HCV eradication, but significantly increased from a median of 10.5 to 11.9 kPa in 58 patients without viral clearance. In 78 patients with two sequential post-treatment measurements, LS decreased from 12.6 to 8.7 kPa after a median 344 d, with a further decrease to 7.0 kPa after a median of 986 d after end of treatment (EoT). In 400 patients with a post-treatment LS assessment after viral eradication, only 9 liver-related events occurred over a median follow-up (FU) of 23 months. All events were observed in patients with a post-treatment LS >20 kPa. CONCLUSIONS: After successful HCV eradication, LS improves sequentially, suggesting an initial phase of necroinflammation regression followed by a second phase of true fibrosis regression. Overall, liver-related events were rarely observed and seem to be limited to patients with a post-treatment LS >20 kPa, so that these patients require a closer clinical monitoring.


Asunto(s)
Diagnóstico por Imagen de Elasticidad , Hepatitis C Crónica , Antivirales/uso terapéutico , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/patología , Humanos , Hígado/diagnóstico por imagen , Hígado/patología , Cirrosis Hepática/diagnóstico por imagen , Cirrosis Hepática/patología
7.
Clin Infect Dis ; 71(5): 1248-1254, 2020 08 22.
Artículo en Inglés | MEDLINE | ID: mdl-31562816

RESUMEN

BACKGROUND: Micro-elimination of the hepatitis C virus (HCV) includes treatment in populations at risk of ongoing HCV transmission, such as men who have sex with men (MSM) or people who inject drugs (PWID). We analyzed the HCV reinfection incidence rates of participants in the German hepatitis C cohort (GECCO) and compared our data to previous findings from the interferon era. METHODS: Patients with HCV reinfections in the multi-centric GECCO cohort were compared to patients in whom no reinfection occurred. The HCV reinfection incidence rate in MSM was also compared to the incidence rate in the interferon era (using data from the European Acquired Immunodeficiency Syndrome Treatment Network [NEAT]). RESULTS: Between January 2014 and April 2018, 48 HCV reinfections occurred in 2298 individuals (2%), with 2346 cured HCV episodes. The median time to reinfection was 500 days (range 16-1160) and the overall HCV reinfection incidence rate was 1.89 per 100 person-years (py; 95% confidence interval [CI], 1.41-2.48). In a multivariate analysis, the transmission risk in MSM was the only independent risk factor of HCV reinfection (odds ratio, 39.3; 95% CI, 4.57-334.40; P = .001). The incidence rate in MSM was 9.02 (95% CI, 6.48-12.26) per 100 py, compared to 1.14 per 100 py in PWID (95% CI, .56-2.09). The incidence rate for a first HCV reinfection in MSM was similar in the direct-acting antiviral era, compared to the interferon era, with a hazard ratio of 1.05 (95% CI, .64-1.74; P = .831). CONCLUSIONS: HCV reinfection remains a frequent finding among MSM in Germany. In addition to behavioral interventions, early HCV treatment and retreatment should be implemented for this subgroup to prevent HCV transmission.


Asunto(s)
Infecciones por VIH , Hepatitis C Crónica , Hepatitis C , Preparaciones Farmacéuticas , Minorías Sexuales y de Género , Abuso de Sustancias por Vía Intravenosa , Antivirales/uso terapéutico , Alemania/epidemiología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Hepacivirus , Hepatitis C/tratamiento farmacológico , Hepatitis C/epidemiología , Hepatitis C Crónica/tratamiento farmacológico , Homosexualidad Masculina , Humanos , Incidencia , Interferones/uso terapéutico , Masculino , Recurrencia , Reinfección , Abuso de Sustancias por Vía Intravenosa/tratamiento farmacológico
8.
BMC Gastroenterol ; 20(1): 24, 2020 Jan 30.
Artículo en Inglés | MEDLINE | ID: mdl-32000689

RESUMEN

BACKGROUND: Chronic hepatitis delta virus (HDV) infection causes severe liver disease which often leads to cirrhosis and hepatocellular carcinoma (HCC). Aim of this study was to establish the disease severity and prognostic factors for disease outcome by analysing frequencies of clinical events and their correlation with baseline virological and biochemical parameters as well as interferon and nucleos(t)ide analogue treatment choice. METHODS: We studied a single-centre cohort of 49 anti-HDAg-positive patients with HBsAg persistence for at least 6 months. Virological and biochemical parameters, interferon and nucleos(t)ide analogue treatment choice as well as clinical events during follow-up were analysed by retrospective chart review (mean follow-up time 3 years, range 0.25-7.67 years). RESULTS: Severe clinical events occurred in 11/49 hepatitis D patients, including HCC (8/49), death (8/49) or liver transplantation (2/49). HCCs only occurred secondary to liver cirrhosis and their event rates in this cohort of hepatitis D patients did not differ from a matched HBV mono-infected cohort with comparable frequency of liver cirrhosis. A stepwise multivariate logistic regression revealed low platelet count (p = 0. 0290) and older age (p = 0.0337) correlating most strongly with overall clinical events, while serum HDV RNA positivity at baseline did not correlate with any clinical outcome. Interferon-free but not nucleos(t)ide analogue-free patient care correlated with the occurrence of HCC at logistic regression, although only 3/18 interferon-treated patients demonstrated repeatedly negative HDV PCR results post therapy. CONCLUSIONS: Our data indicate that progressive liver disease at baseline plays a major role as predictive factor for overall clinical outcome of hepatitis D patients. In particular, HCC risk may not be underestimated in hepatitis D virus RNA negative hepatitis D patients with advanced liver fibrosis.


Asunto(s)
Carcinoma Hepatocelular/epidemiología , Coinfección/epidemiología , Hepatitis B Crónica/epidemiología , Hepatitis D Crónica/epidemiología , Cirrosis Hepática/epidemiología , Neoplasias Hepáticas/epidemiología , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/virología , Estudios de Cohortes , Coinfección/complicaciones , Coinfección/tratamiento farmacológico , Femenino , Alemania/epidemiología , Antígenos de Superficie de la Hepatitis B/sangre , Virus de la Hepatitis B/genética , Virus de la Hepatitis B/aislamiento & purificación , Hepatitis B Crónica/complicaciones , Hepatitis B Crónica/tratamiento farmacológico , Hepatitis D Crónica/complicaciones , Hepatitis D Crónica/tratamiento farmacológico , Virus de la Hepatitis Delta/genética , Virus de la Hepatitis Delta/aislamiento & purificación , Antígenos de Hepatitis delta/sangre , Humanos , Interferones/uso terapéutico , Cirrosis Hepática/virología , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/virología , Trasplante de Hígado , Estudios Longitudinales , Masculino , Morbilidad , Nucleósidos/uso terapéutico , Estudios Retrospectivos
9.
Z Gastroenterol ; 57(6): 729-733, 2019 Jun.
Artículo en Alemán | MEDLINE | ID: mdl-31170742

RESUMEN

INTRODUCTION: Proton pump inhibitors (PPI) are one of the most frequently prescribed drugs worldwide. In particular, in patients with liver cirrhosis prescription rates up to 78 % have been reported. PPI may be a risk factor for nosocomial infections, spontaneous bacterial peritonitis and onset of hepatic encephalopathy. Aim of this survey was to assess the prescription practice of PPI in patients with cirrhosis in Germany. METHODS: We performed a web-based survey among hepatologists and gastroenterologists. The invitations for the survey have been sent out via the newsletter of German gastroenterological societies (DGVS, BVGD and AUG). RESULTS: 61 persons have participated in the survey. Overall, high PPI prescription rates have been reported (58 % in inpatient and 44 % in outpatient setting). Almost half of the respondents reported that PPI are frequently prescribed without clear indication (such as abdominal discomfort). One third reported that the PPI therapy could be stopped after critical evaluation of the indication. 55 % of the respondents stated that according to their estimates PPI are associated with adverse reactions. Bleeding was only very rarely seen after termination of PPI treatment. CONCLUSION: PPI are frequently prescribed among patients with liver cirrhosis in Germany. Prescribers are aware of an unclear risk-benefit ratio. Further prospective data are urgently needed to increase evidence regarding indication and duration of PPI therapy in patients with cirrhosis.


Asunto(s)
Prescripciones de Medicamentos/estadística & datos numéricos , Gastroenterólogos , Cirrosis Hepática/terapia , Pautas de la Práctica en Medicina/estadística & datos numéricos , Inhibidores de la Bomba de Protones/uso terapéutico , Alemania , Humanos , Encuestas y Cuestionarios
10.
Hepatology ; 65(4): 1410-1412, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-27981598

RESUMEN

We present a case of hepatosplenic necrotizing sarcoid granulomatosis, a variant form of "classical" sarcoidosis, that became clinically apparent in the form of multiple hepatic and splenic masses mimicking malignancy. Flow cytometry of intrahepatic T cells isolated from liver biopsy led to the targeted treatment with anti-tumor necrosis factor-alpha, which was highly effective in inducing remission. (Hepatology 2017;65:1410-1412).


Asunto(s)
Granuloma/tratamiento farmacológico , Granuloma/patología , Infliximab/administración & dosificación , Hepatopatías/diagnóstico por imagen , Hepatopatías/tratamiento farmacológico , Sarcoidosis/tratamiento farmacológico , Adulto , Biopsia con Aguja , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Granuloma/diagnóstico por imagen , Humanos , Inmunohistoquímica , Infusiones Intravenosas , Hepatopatías/patología , Imagen por Resonancia Magnética/métodos , Masculino , Necrosis/patología , Pronóstico , Sarcoidosis/diagnóstico por imagen , Sarcoidosis/patología , Resultado del Tratamiento , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores
11.
J Med Virol ; 90(2): 304-312, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28710853

RESUMEN

There are limited data regarding the real world effectiveness of direct acting antivirals (DAA) for the therapy of chronic genotype 3 hepatitis C virus (HCV) infection. All HCV genotype 3 infected patients from the German hepatitis C cohort (GECCO), which is a prospective database of nine German hepatitis C treatment centers, were included in the study. Three hundred forty-two chronically infected HCV genotype 3 patients were analyzed (253 males [74.0%], mean age 47.3 years, 127 cirrhotic patients [37.1%] mostly with Child A cirrhosis, 113 treatment experienced patients [37.1%], 38 HCV/HIV co-infected patients [11.1%]). SVR12 rates in the "intention-to-treat" analysis were as follows: sofosbuvir/ribavirin 69.4% (75/108), sofosbuvir/peginterferon/ribavirin 80.6% (58/72), sofosbuvir/daclatasvir ± ribavirin for 12 weeks 88.3% (53/63), sofosbuvir/daclatasvir ± ribavirin for 24 weeks 79.3% (23/29), sofosbuvir/ledipasvir ± ribavirin for 12 weeks 71.4% (10/14), and sofosbuvir/ledipasvir ± ribavirin for 24 weeks 86.7% (26/30). Forty patients were lost to follow-up, 23 patients had a relapse, 4 patients stopped treatment prematurely and 1 patient died. Female sex (P = 0.038) and treatment with two different DAAs (P = 0.05) were predictors for SVR12 in the multivariate analysis. In conclusion, sofosbuvir/daclatasvir ± ribavirin for 12 weeks and sofosbuvir/ledipasvir ± ribavirin for 24 weeks are effective for the treatment of HCV genotype 3 infected patients including cirrhotic, treatment-experienced or HIV/HCV co-infected patients.


Asunto(s)
Antivirales/uso terapéutico , Genotipo , Hepacivirus/clasificación , Hepatitis C Crónica/tratamiento farmacológico , Sofosbuvir/uso terapéutico , Adulto , Anciano , Quimioterapia Combinada/métodos , Femenino , Hepacivirus/genética , Hepatitis C Crónica/virología , Humanos , Masculino , Persona de Mediana Edad , Respuesta Virológica Sostenida , Resultado del Tratamiento
12.
Z Gastroenterol ; 56(1): 29-35, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-29316575

RESUMEN

BACKGROUND: The frequency of autochthonous hepatitis E virus (HEV) infections in Western countries has increased since the millennium, probably due to a higher awareness for HEV. The aim of this study was to analyze the epidemiological situation and regional distribution of HEV in comparison to hepatitis A - D in Germany. METHODS: Data of the reported cases, patients' travel histories, and the regional distribution of hepatitis A - E virus infections from 2001 to 2017 were extracted from databases of the Robert Koch Institute. The number of publications per year on each hepatitis virus was used as a surrogate parameter for scientific awareness. RESULTS: The incidence of HEV infections increased from 31 reported cases in 2001 to 1991 cases in 2016 with a rate of autochthonous HEV infections of 44.4 % in 2001 and 83.9 % in 2016. In 2016, the HEV incidence was 4.4/100 000 in Eastern Germany and 2.0/100 000 in Western Germany. From 2001 to 2016, the numbers of hepatitis A and C virus infections decreased, while the number of hepatitis B virus infections initially decreased followed by an increase since 2014. The incidence of hepatitis D virus infections remained low. The incidence rates of hepatitis A - D virus infections were comparable between Eastern and Western Germany in 2016. There was a strong correlation between publications on HEV and reported HEV cases (Pearson r = 0.9803, p < 0.01). CONCLUSIONS: Especially in Eastern Germany, but also in Western Germany, the rate of reported HEV cases and the scientific awareness for this disease increased strongly since 2001.


Asunto(s)
Notificación de Enfermedades , Virus de la Hepatitis E/aislamiento & purificación , Hepatitis E/epidemiología , Alemania/epidemiología , Hepatitis A/diagnóstico , Hepatitis A/epidemiología , Hepatitis B/epidemiología , Hepatitis C/epidemiología , Hepatitis D/epidemiología , Hepatitis E/diagnóstico , Humanos , Incidencia , Prevalencia , Estudios Seroepidemiológicos
13.
Z Gastroenterol ; 56(1): 43-50, 2018 01.
Artículo en Alemán | MEDLINE | ID: mdl-29316577

RESUMEN

INTRODUCTION: Non-alcoholic fatty liver disease (NAFLD) has become one of the most frequent causes of chronic liver disease. Currently, therapeutic options for NAFLD patients are limited, but new pharmacologic agents are being investigated in the course of clinical trials. Because most of these studies are focusing on patients with fibrosis stages II and III (according to Kleiner), non-invasive identification of patients with intermediate fibrosis stages (II and III) is of increasing interest. AIMS: Evaluation of NAFLD Fibrosis Score (NFS) and liver stiffness measurement (LSM) for prediction of fibrosis stages II/III. METHODS: Patients with histologically confirmed NAFLD diagnosis were included in the study. All patients underwent a clinical and laboratory examination as well as a LSM prior to liver biopsy. Predictive value of NFS and LSM with respect to identification of fibrosis stages II/III was assessed. RESULTS: 134 NAFLD patients were included and analyzed. Median age was 53 (IQR 36 - 60) years, 55 patients (41 %) were female. 82 % of our patients were overweight/obese with typical aspects of metabolic syndrome. 84 patients (66 %) had liver fibrosis, 42 (50 %) advanced fibrosis. LSM and NFS correlated with fibrosis stage (r = 0.696 and r = 0.685, respectively; p < 0.01 for both). NFS values between -2.0 and + 0.5, and LSM values between 8 and 22kPa were associated with fibrosis stages II/III. If both criteria were met, probability of fibrosis stage II/III was 61 %. If none of the two criteria was met, chance for fibrosis stage II/III was only 6 % (negative predictive value 94 %). CONCLUSION: Combination of LSM and NFS enables identification of patients with significant probability of fibrosis stage II/III. Accordingly, these tests, especially in combination, may be a suitable screening tool for fibrosis stages II/III in NAFLD. The use of these non-invasive methods might also help to avoid unnecessary biopsies.


Asunto(s)
Fibrosis/patología , Cirrosis Hepática/patología , Hígado/patología , Enfermedad del Hígado Graso no Alcohólico/patología , Adulto , Biopsia , Femenino , Humanos , Hígado/fisiología , Persona de Mediana Edad , Valor Predictivo de las Pruebas
14.
Pancreatology ; 17(6): 898-904, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28939443

RESUMEN

BACKGROUND: Limited data exists concerning the coincidence of chronic pancreatitis (CP) and liver cirrhosis with respect to the patient outcome after liver transplantation (LT). The aim of the study was to identify risk factors for graft loss after liver transplantation and to evaluate the impact of CP on graft survival. METHODS: We analyzed the data of 421 cirrhotic patients who underwent evaluation for primary liver transplantation from January 2007 to January 2014. Diagnosis of CP based on morphologic findings which were graded according to the Cambridge and Manchester classification. (Graft) survival after LT was analyzed by Cox regression analysis. Recipient- and donor-related risk factors for graft loss were evaluated using univariate and multivariate analysis. RESULTS: 40/421 cirrhotic patients suffered from CP (9.5%). 250/421 (59.4%) patients underwent LT between January 2007 and January 2014. In total, 89 patients died or were in need of a re-transplantation during follow-up until August 2017. Patients with CP (N = 26) were at increased risk for graft loss after LT (hazard ratio = 2.183; 95% confidence interval = 1.232-3.868). CP (P = 0.001), a MELD score ≥24 (P = 0.021), absence of esophageal or gastrical varices (P = 0.018), the age of the donor (P = 0.008) and infections after transplantation (P = 0.030) were independent risk factors for organ loss after transplantation in the multivariate Cox regression analysis. CONCLUSION: Patients with chronic pancreatitis are at increased risk for graft loss after LT. A high MELD score, the absence of esophageal or gastrical varices, an advanced donor age and post-transplant infections negatively affect graft survival, too.


Asunto(s)
Supervivencia de Injerto/fisiología , Cirrosis Hepática/terapia , Pancreatitis Crónica/complicaciones , Anciano , Estudios de Casos y Controles , Femenino , Humanos , Trasplante de Hígado , Masculino , Persona de Mediana Edad , Análisis Multivariante , Modelos de Riesgos Proporcionales , Estudios Retrospectivos
15.
Med Microbiol Immunol ; 206(5): 379-382, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28815296

RESUMEN

Autoantibodies against inosine-5'-monophosphate-dehydrogenase-2 (IMPDH2; "rods and rings" pattern) develop in chronic hepatitis C (CHC) patients under treatment with peg-interferon (IFN) and ribavirin (RBV), an inhibitor of IMPDH2. We investigated the influence of the alternative therapy with direct-acting antivirals (DAA)/ribavirin on anti-IMPDH2 autoantibody generation and the use of anti-IMPDH2 development as a marker for therapy outcome (sustained virologic response, SVR). We analyzed a "real life" cohort of 104 unselected CHC genotype 1 (GT1) patients treated with IFN/first-generation DAA/RBV prospectively compared to a historic cohort of 59 IFN/RBV-treated CHC GT1 patients. First-generation DAA were boceprevir (BOC) or telaprevir (TPR). Serum autoantibodies were tested by indirect immunofluorescence (IFA) using recombinant IMPDH2 expressing HEK293 cells and native HEp2-cells as substrates. 64/163 (39%) CHC patients turned anti-IMPDH2 positive during therapy, but only 43/163 (26%) showed also "rods and rings" structures. 99/163 (61%) were tested as anti-IMPDH2 negative. 53/104 (51%) CHC patients undergoing IFN/DAA/RBV therapy were anti-IMPDH2 positive and 38/104 (37%) were in parallel anti-"rods and rings" positive. HCV clearance/SVR rate after IFN/DAA/RBV therapy and anti-IMPDH2 status were not significantly dependent. CHC GT1 patients treated with IFN/first-generation DAA/RBV developed anti-IMPDH2 autoantibodies comparable to previous studies including patients under IFN/RBV therapy. Anti-IMPDH2 titers show no use as a marker for therapy outcome in CHC GT1 patients.


Asunto(s)
Antivirales/uso terapéutico , Autoanticuerpos/sangre , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/patología , IMP Deshidrogenasa/inmunología , Adulto , Anciano , Monitoreo de Drogas/métodos , Femenino , Técnica del Anticuerpo Fluorescente Indirecta , Genotipo , Hepacivirus/clasificación , Hepacivirus/genética , Hepatitis C Crónica/virología , Humanos , Masculino , Persona de Mediana Edad , Oligopéptidos/uso terapéutico , Prolina/análogos & derivados , Prolina/uso terapéutico , Estudios Prospectivos , Resultado del Tratamiento
16.
Clin Infect Dis ; 63(10): 1320-1324, 2016 11 15.
Artículo en Inglés | MEDLINE | ID: mdl-27535952

RESUMEN

BACKGROUND: Shortening the duration of treatment with HCV direct-acting antivirals (DAAs) leads to substantial cost reductions. According to the label, sofosbuvir and ledipasvir can be prescribed for 8 weeks (SL8) in noncirrhotic women or men with HCV genotype 1 and low viral loads. However, real-world data about the efficacy and safety of SL8 are largely missing. METHODS: Interim results from an ongoing prospective, multicenter cohort of 9 treatment centers in Germany (GECCO). All patients started on treatment with HCV DAAs since January 2014 were included. This report describes safety and efficacy outcomes in 210 patients with HCV monoinfection and 35 with human immunodeficiency virus (HIV)-HCV coinfection given SL8 in a real-world setting. RESULTS: Of 1353 patients included into the GECCO cohort until December 2015, a total of 1287 had complete data sets for this analysis; 337 (26.2%) fulfilled the criteria for SL8 according to the package insert, but only 193 (57.2%) were eventually treated for 8 weeks. Another 52 patients did not fulfill the criteria but were treated for 8 weeks. SL8 was generally well tolerated. The overall sustained virologic response rate 12 weeks after the end of treatment was 93.5% (186 of 199). The on-treatment response rate was 99.4% (159 of 160) in HCV-monoinfected and 96.4% (27 of 28) in HIV-HCV-coinfected patients. Ten patients were lost to follow-up. CONCLUSIONS: SL8 seems highly effective and safe in well-selected HCV-monoinfected and HIV-HCV-coinfected patients in a real-world setting.


Asunto(s)
Antivirales , Bencimidazoles , Coinfección/tratamiento farmacológico , Fluorenos , Infecciones por VIH/complicaciones , Hepatitis C Crónica/tratamiento farmacológico , Sofosbuvir , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antivirales/administración & dosificación , Antivirales/uso terapéutico , Bencimidazoles/administración & dosificación , Bencimidazoles/uso terapéutico , Femenino , Fluorenos/administración & dosificación , Fluorenos/uso terapéutico , Alemania/epidemiología , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/epidemiología , Hepatitis C Crónica/virología , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sofosbuvir/administración & dosificación , Sofosbuvir/uso terapéutico , Carga Viral , Adulto Joven
17.
Scand J Gastroenterol ; 51(7): 807-13, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27000534

RESUMEN

BACKGROUND: Patients with acute alcoholic steatohepatitis are at a high risk for infections. To date, neither disease-specific pathogen patterns, nor typical sites of infection, nor antibiotic treatment strategies have been established for AH. AIMS: To characterize incidence of infections, pathogen spectrum, sites of infection, and related mortality of patients with AH under steroid therapy. METHODS: We retrospectively analyzed clinical data of 73 patients with severe alcoholic hepatitis (MELD ≥ 20). RESULTS: Infections were detected in 45 patients (73%). Patients who developed an infection after initiation of corticosteroid therapy had a higher 6-month mortality than patients without onset of infection after initiation of corticosteroid treatment (44% versus 24%, p = 0.116). The pathogen identified most frequently was Enterococcus species. DISCUSSION: Infections frequently complicate severe alcoholic hepatitis and affect survival. The high rate of Enterococcus infections suggests that commonly used antibiotics, such as cephalosporins and quinolones, may represent an ineffective choice of empiric antibiotic treatment for complicated AH.


Asunto(s)
Enterococcus , Infecciones por Bacterias Gramnegativas/complicaciones , Hepatitis Alcohólica/complicaciones , Adulto , Anciano , Femenino , Infecciones por Bacterias Gramnegativas/mortalidad , Hepatitis Alcohólica/tratamiento farmacológico , Humanos , Masculino , Persona de Mediana Edad , Prednisolona/uso terapéutico , Estudios Retrospectivos , Factores de Riesgo , Esteroides/uso terapéutico
18.
J Clin Gastroenterol ; 49(10): 866-72, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25856382

RESUMEN

BACKGROUND: Cirrhotic cardiomyopathy is a recently defined cardiac disorder in patients with end-stage liver disease. The frequency and exact manifestations of cardiac changes in liver cirrhosis is unknown. GOALS: We aim to describe cardiac changes in a large autopsy study of patients with liver cirrhosis. STUDY: Postmortem data from 895 individuals with liver cirrhosis of different origin autopsied from 1995 to 2010 were analyzed. A total of 236 patients were excluded, mostly due to an advanced age above 70 years. The remaining 659 patients were assigned to 4 subgroups according to the etiology of cirrhosis: alcoholic cirrhosis (57.4%), nonalcoholic steatohepatitis (4.2%), viral hepatitis (9.3%), and cryptogenic cirrhosis (29.1%). Predefined clinical and cardiac parameters were assessed in these groups and compared by univariate and multivariate analyses to an age-matched and sex-matched control group including 40 deceased patients without evidence of chronic liver disease. RESULTS: A critical heart weight (24%, P=0.024), hypertrophy of the right ventricle (24%, P<0.001), and dilatation of the right ventricle (36%, P=0.040) were significantly more frequent in the cirrhosis group compared with noncirrhotic controls. Cirrhosis patients had a greater risk for high-grade coronary sclerosis (30%, P=0.019). The etiology of cirrhosis was independently associated with hypertrophy and dilatation of the right ventricle, with nonalcoholic steatohepatitis patients being at the highest risk. CONCLUSION: Our results demonstrate a high rate of right-ventricular abnormalities and coronary sclerosis in individuals suffering from liver cirrhosis regardless of the etiology of cirrhosis.


Asunto(s)
Vasos Coronarios/patología , Ventrículos Cardíacos/patología , Cirrosis Hepática/patología , Miocardio/patología , Anciano , Autopsia , Estudios de Casos y Controles , Dilatación Patológica/etiología , Femenino , Humanos , Hipertrofia Ventricular Derecha/etiología , Hipertrofia Ventricular Derecha/patología , Cirrosis Hepática/etiología , Masculino , Persona de Mediana Edad , Tamaño de los Órganos , Esclerosis/etiología
19.
Scand J Gastroenterol ; 49(5): 595-603, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24673156

RESUMEN

BACKGROUND AND AIMS: Spontaneous bacterial peritonitis (SBP) is a life-threatening complication in patients with liver cirrhosis. The aim of this prospective study was to identify predictors of SBP in order to develop a noninvasive method to identify or exclude an episode of SBP. PATIENTS AND METHODS: Three hundred and ninety-two consecutive patients, who underwent paracentesis from March 2008 through January 2012 in our department due to cirrhotic ascites, were screened. Ninety-six patients were excluded, mostly due to prior application of antibiotics. SBP was defined by an absolute neutrophil count≥250 cells/µL ascites. We evaluated various clinical and laboratory parameters as potential predictors of SBP. A scoring system was developed in a training set of 220 and validated in a second set of 76 patients. RESULTS: Fifty-eight patients (26%) in the training set and 17 patients in the validation set (22%) suffered from SBP. Thrombocytopenia≤100,000 cells/µL, age>60 years and CRP>60 mg/L were identified as independent predictors of SBP. A scoring system combining these three parameters (weighting thrombocytopenia and age with 1 point each, but CRP with 2 points) reaches a positive predictive value for the diagnosis of SBP of 81.8% with a specificity of 98.8% (score≥3). The negative predictive value at a threshold of 1 point is 93.5% with a sensitivity of 87.9%. Notably, a high MELD score is not associated with SBP (p=0.3344). CONCLUSIONS: Combination of age, CRP and platelet count in a simple scoring system helps in the rapid diagnosis or exclusion of SBP.


Asunto(s)
Ascitis/patología , Cirrosis Hepática/complicaciones , Neutrófilos , Peritonitis/diagnóstico , Factores de Edad , Anciano , Ascitis/etiología , Biomarcadores/sangre , Proteína C-Reactiva/metabolismo , Femenino , Humanos , Recuento de Leucocitos , Masculino , Persona de Mediana Edad , Peritonitis/sangre , Peritonitis/microbiología , Recuento de Plaquetas , Valor Predictivo de las Pruebas , Estudios Prospectivos , Trombocitopenia/etiología
20.
BMC Gastroenterol ; 14: 87, 2014 May 05.
Artículo en Inglés | MEDLINE | ID: mdl-24884400

RESUMEN

BACKGROUND: The combination of boceprevir or telaprevir with peginterferon-alfa and ribavirin for the treatment of patients infected with HCV genotype 1 has led to significantly increased rates of sustained virological response (SVR) in phase III trials. There is only limited data regarding the safety and efficacy in a "real-life" cohort. METHODS: We analyzed a cohort of 110 unselected HCV patients who started triple therapy from September 2011 to February 2013 by chart review with focus on the individual course of treatment, complications and outcome. We excluded 8 patients from analysis because of HIV-coinfection (N = 6) or status post liver transplant (N = 2). Importantly, 41 patients displayed F3 or F4 fibrosis, 10 patients had a history of treatment with protease/polymerase inhibitors and 15 patients were prior partial- or null-responder. RESULTS: SVR12 was achieved in 62 of the 102 patients (60.8%). A high rate of serious adverse events (N = 30) was observed in 22 patients including 2 fatalities in cirrhotic diabetes patients. Age >50 years, liver cirrhosis, bilirubin >1.1 mg/dl (P < 0.01, each), platelets <100,000/µl (P = 0.01), ASAT >100 U/l (P = 0.03) and albumin ≤35 g/l (P = 0.04) at baseline were associated with occurence of a SAE. CONCLUSIONS: The frequency of SVR in a "real-life" treatment setting is slightly lower as compared to the results of the phase III trials for telaprevir or boceprevir. Importantly, we observed a high frequency of SAE in triple therapy, especially in patients with liver cirrhosis.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Interferón-alfa/uso terapéutico , Oligopéptidos/uso terapéutico , Polietilenglicoles , Prolina/análogos & derivados , Ribavirina/uso terapéutico , Estudios de Cohortes , Quimioterapia Combinada , Femenino , Hepacivirus/genética , Humanos , Masculino , Persona de Mediana Edad , Prolina/uso terapéutico , Inhibidores de Proteasas/uso terapéutico , Resultado del Tratamiento , Carga Viral
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