Burden, Outcome, and Comorbidities of Extrahepatic Manifestations in Hepatitis C Virus Infection

Hepatitis C virus antibody seropositivity is associated with albuminuria but not peripheral artery disease in patients with type 2 diabetes

Hepatitis C virus (HCV) infection is prevalent in patients with type 2 diabetes mellitus (DM). We aimed to investigate whether HCV antibody (Ab) seropositivity is associated with diabetic micro- and macro-vascular diseases. In this hospital-based cross-sectional study, we retrospectively collected data from patients who participated in the diabetes pay-for-performance program and underwent HCV Ab screening in the annual comprehensive assessment between January 2021 and March 2022. We examined the relationships of HCV Ab seropositivity with the spot urinary albumin-to-creatinine ratio (UACR) and ankle-brachial index (ABI) in patients aged ≥ 50 years with type 2 DM. A total of 1758 patients were enrolled, and 85 (4.83%) of the enrolled patients had HCV Ab seropositivity. Multivariable regression analyses revealed that albuminuria showed a dose-dependent association with HCV Ab seropositivity (UACR [30-299 mg/g]: odds ratio [OR] = 1.463, 95% confidence interval [CI] 0.872‒2.456); UACR [≥ 300 mg/g]: OR = 2.300, 95% CI 1.160‒4.562; P for trend = 0.015) when compared with normal albuminuria (UACR < 30 mg/g). However, the proportion of patients with peripheral arterial disease, defined as an ABI ≤ 0.9, was not significantly different between the groups with and without HCV Ab seropositivity (3.5% vs. 3.9%, P = 0.999). In conclusion, severely increased albuminuria, but not the ABI, showed a significant association with HCV Ab seropositivity in patients aged ≥ 50 years with type 2 DM.

Sustained virologic response improved the long-term health-related quality of life in patients with chronic hepatitis C: a prospective national study in China

BACKGROUND

To investigate the trends in health-related quality of life (HRQoL) among hepatitis C virus (HCV) patients and to assess the longitudinal impact of antiviral therapy on their well-being.

METHODS

In this prospective multicenter observational study in adults with HCV infection, sociodemographic, clinical characteristics and EQ-5D questionnaires were collected. Generalized estimating equation (GEE) models were used to assess the associations between these variables and changes in HRQoL over time.

RESULTS

456 patients were included, with a median age of 46.5 (36.5-57.0) years, of which 262 (57.5%) were males and 44 (9.6%) had cirrhosis. 335 patients (73.5%) receiving antiviral therapy and 61.8% achieved sustained virologic response (SVR). The baseline EQ-5D utility and EQ-VAS were 0.916 ± 0.208 and 80.6 ± 13.0. In multivariable analysis of GEE estimation, achieving SVR24 was positively associated with EQ-5D utility (p = 0.000) and EQ-VAS (p = 0.000) over time. Age and income were shown to be significant predictors of EQ-5D utility, while gender, age and genotype were associated with EQ-VAS over time.

CONCLUSIONS

SVR improved long-term HRQoL in HCV patients in the first few years following viral clearance. Certain sociodemographic factors, such as gender, age, income as well as genotype, significantly influenced long-term changes in patients' quality of life.

TRIAL REGISTRATION

NCT01594554. Registration date: 09/05/2012.

Therapeutic Potential of Rituximab in Managing Hepatitis C-Associated Cryoglobulinemic Vasculitis: A Systematic Review

(1) Background. Hepatitis C infection often leads to extrahepatic manifestations, including cryoglobulinemic vasculitis. This systematic review aimed to assess the efficacy and safety of rituximab in treating hepatitis C-associated cryoglobulinemic vasculitis. (2) Methods. Following PRISMA guidelines, databases were searched for relevant studies. Eligibility criteria included studies on hepatitis C-associated cryoglobulinemic vasculitis treated with rituximab. (3) Results. Nine studies met the eligibility criteria and were included in this analysis. Rituximab was commonly administered at 375 mg/m2 weekly for one month. The results consistently demonstrated the efficacy of rituximab, whether as a standalone treatment or as part of a therapeutic regimen. The combination of rituximab with Peg-IFN-α and ribavirin significantly increased the complete response rate compared to Peg-IFN-α and ribavirin alone (54.5% vs. 33.3%, p < 0.05). The 3-year sustained response rate was notably higher in the rituximab combination group (83.3% vs. 40%). In another trial, rituximab achieved remission in 83.3% of patients at 6 months, compared to only 8.3% in the control group. The efficacy of rituximab was supported by long-term experience, with clinical benefits in patients with severe cryoglobulinemic vasculitis, including those resistant to standard therapies. Mild adverse events were generally reported, with rare severe reactions in some studies. (4) Conclusions: In conclusion, rituximab appeared to be effective and safe in managing hepatitis C-associated cryoglobulinemic vasculitis, either alone or with antiviral therapy.

Changing Epidemiological Patterns of Infection and Mortality Due to Hepatitis C Virus in Poland

INTRODUCTION

Limited information is available on trends in hepatitis C virus (HCV) infection, particularly in Central Europe. To address this knowledge gap, we analyzed HCV epidemiology in Poland, considering socio-demographic characteristics, changing patterns over time, and the impact of the COVID-19 pandemic.

MATERIAL AND METHODS

We examined HCV cases (diagnosis and deaths) reported by national registries and used joinpoint analysis to estimate time trajectories.

RESULTS

Between 2009 and 2021, there were changes in the trends of HCV, shifting from positive to negative in Poland. Among men, there was a significant increase initially in diagnosis rate of HCV in rural areas (annual percent change, APC_2009-2016 +11.50%) and urban areas (APC_2009-2016 +11.44%) by 2016. In subsequent years until 2019, the trend changed direction, but the reduction was weak (P_trend > 0.05) in rural areas (-8.66%) and urban areas (-13.63%). During the COVID-19 pandemic, the diagnosis rate of HCV dramatically decreased in rural areas (APC_2019-2021 -41.47%) and urban areas (APC_2019-2021 -40.88%). Among women, changes in the diagnosis rate of HCV were less pronounced. In rural areas, there was a significant increase (APC_2009-2015 +20.53%) followed by no significant change, whereas changes occurred later in urban areas (APC_2017-2021 -33.58%). Trend changes in total mortality due to HCV were mainly among men, with a significant decrease in rural (-17.17%) and urban (-21.55%) areas from 2014/2015.

CONCLUSIONS

The COVID-19 pandemic reduced HCV diagnosis rates in Poland, especially for diagnosed cases. However, further monitoring of HCV trends is necessary, along with national screening programs and improved linkage to care.

Hepatitis C and Thalassemia: A Story with (Almost) a Happy Ending

Donor screening has nearly eliminated the risk of hepatitis C virus post-transfusion transmission in resource-rich settings. Moreover, the use of direct antiviral agents made it possible to treat the majority of patients with thalassemia and hepatitis C. However, this achievement, while extremely significant, does not erase the effects of the virus in terms of fibrogenesis and mutagenic risk, and adult patients with thalassemia are facing the long-term consequences of the chronic infection both on the liver and extrahepatically. As in the general population, it is in mainly patients with cirrhosis who are increasing in age, even though they are now HCV RNA-negative, who are at risk of hepatocellular carcinoma, which continues to be statistically much more frequent in individuals with than without thalassemia. In certain resource-limited settings, the World Health Organization has estimated that up to 25 percent of blood donations do not undergo screening. It is therefore not surprising that hepatitis virus infection is still the most prevalent in patients with thalassemia worldwide.