P2-050: Evaluating hepatitis C core antigen as a screening test in populations at high risk of hepatitis C virus (HCV) infection

2018 ◽  
Vol 25 ◽  
pp. 132-133
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
High Risk ◽  
Screening Test ◽  
Hcv Infection ◽  
Core Antigen

Serologic, Virologic, and Histologic Characteristics of Chronic Phase Hepatitis C Virus Disease in Children Infected by Transfusion

PEDIATRICS ◽  
1994 ◽  
Vol 94 (6) ◽  
pp. 919-922
Author(s):  
Suguru Matsuoka ◽  
Katsuyoshi Tatara ◽  
Yasunobu Hayabuchi ◽  
Yoshiyuki Taguchi ◽  
Kazuhiro Mori ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Acute Infection ◽  
Chronic Phase ◽  
Hcv Infection ◽  
Core Antigen ◽  
Hcv Rna ◽  
Histologic Evidence ◽  
Group A ◽  
Group B

Objective. We studied the time course of hepatic dysfunction, seropositivity to hepatitis C virus (HCV) antibodies, viremia, and histologic evidence of hepatic injury to evaluate the course of HCV infection in children infected by blood transfusion. Patients and methods. Twenty-nine patients (ages 4 to 18 years) who underwent open-heart surgeries for congenital heart disease were grouped into three categories based on alterations in serum alanine aminotransferase (ALT) levels: Group A, acute infection; Group B, subacute infection; and Group C, chronic infection. Results. In Group C, all 13 patients had detectable HCV RNA in serum. In contrast, all patients in Group A had no detectable HCV RNA. In Group B, one of nine patients had detectable HCV RNA and two of four patients examined had persistent chronic hepatitis by histologic criteria. Antibodies directed against C100-3 antigen or core-antigen were more useful than second-generation HCV antibody assays in determining the relationship between viremia and immunologic response. Infection with HCV genotype II and the presence of higher HCV RNA copy numbers were associated with histologic evidence of hepatic damage. Conclusion. An abnormal ALT value is frequently associated with viremia, and biochemically resolved acute infection reflects clearance of HCV. However, a normal ALT does not always reflect an absence of hepatocyte damage and HCV replication in patients with subacute disease. The measures outlined in this study are useful indicators of disease activity during the chronic phase of post-transfusion HCV infection.

scholarly journals Performance and modification of EGCRISC among hepatitis C virus high-risk groups

2020 ◽  
Vol 148 ◽  
Author(s):  
E. M. El-Ghitany ◽  
Y. M. Alkassabany ◽  
A. G. Farghaly
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
High Risk ◽  
Sex Workers ◽  
Screening Tool ◽  
Risk Groups ◽  
Hcv Infection ◽  
Human Immune Deficiency Virus ◽  
Hiv Patients ◽  
Increased Risk

Abstract We have previously shown that the Egyptian Hepatitis C Virus Risk Score (EGCRISC), an Egyptian hepatitis C virus (HCV) risk-based screening tool, to be valid and cost-effective. Certain behaviours, occupations and diseases have been shown to be associated with an increased risk of exposure to HCV infection and constitute a major population reservoir of HCV infection. This study investigated the efficacy of EGCRISC in selected high-risk groups by testing 863 participants from four groups: slaughterhouse workers, illicit drug users (IDUs), female sex workers and human immune deficiency virus (HIV) patients. Data for this study were collected on EGCRISC and another pre-designed risk factor questionnaire. Sera were tested for HCV antibodies by ELISA. EGCRISC, at lower cut-off points, showed significantly good performance (P < 0.05) in all four groups except for females <45 years, but was reliable in detecting HCV cases (sensitivity: 84.21% and negative predictive value: 94.5%). Specific scores for IDUs and HIV patients were developed that showed high accuracy (P < 0.001). A modified EGCRISC for high-risk groups (EGCRISC-HRGs) was shown to be a valid tool that is recommended for use in high-risk populations if no other specific screening tool is available or universal screening is applied. EGCRISC for IDUs (EGCRISC-IDUs) and EGCRISC for HIV patients (EGCRISC-HIV) are useful tools for preselecting potentially HCV-infected cases for further testing in settings where serological analysis is not readily available or accessible.

IgM and IgA antibodies generated against hepatitis C virus core antigen in patients with acute and chronic HCV infection

1994 ◽  
Vol 39 (9) ◽  
pp. 2022-2031 ◽  
Author(s):  
Shinjiro Sato ◽  
Shigetoshi Fujiyama ◽  
Motohiko Tanaka ◽  
Masafumi Goto ◽  
Yuko Taura ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Hcv Infection ◽  
Core Antigen ◽  
Virus Core ◽  
Iga Antibodies ◽  
Chronic Hcv Infection ◽  
Chronic Hcv

scholarly journals Simultaneous Detection of Hepatitis C Virus (HCV) Core Antigen and Anti-HCV Antibodies Improves the Early Detection of HCV Infection

2005 ◽  
Vol 43 (8) ◽  
pp. 3877-3883 ◽  
Author(s):  
S. Laperche ◽  
N. Le Marrec ◽  
A. Girault ◽  
F. Bouchardeau ◽  
A. Servant-Delmas ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Early Detection ◽  
Simultaneous Detection ◽  
Hcv Infection ◽  
Core Antigen ◽  
Hcv Core Antigen

scholarly journals PREVALENCE AND GENOTYPING OF HEPATITIS C VIRUS IN HEMODIALYSIS PATIENTS AND EVALUATION OF HCV-CORE ANTIGEN TEST IN SCREENING PATIENTS FOR DIALYSIS IN SANA'A CITY, YEMEN

2019 ◽  
Author(s):  
Samira H Hanash ◽  
Hassan A. Al-Shamahy ◽  
Mohammed Hussein Saleh Bamshmous
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
General Population ◽  
Predictive Power ◽  
Hcv Infection ◽  
Health Concern ◽  
Core Antigen ◽  
Antigen Test ◽  
Genotype 4 ◽  
Hcv Core Antigen

Hepatitis C virus infection is a constant worldwide public health concern. The prevalence of HCV infection is higher in patients on chronic haemodialysis (HD) than in the general population. Despite the control of blood products, hepatitis C virus transmission is still being observed among patients undergoing dialysis. Detection systems for serum HCV antibodies are insensitive in the acute phase because of the long serological window. Direct detection of HCV depends on PCR test but this test is not suitable for routine screening. The objective of this study was to determine prevalence of HCV, genotyping and if HCV core antigen test could be a better alternative to NAT techniques for the diagnosis of HCV infection during the window period and whether the sensitivity for antibody detection is preserved. We screened 159 patients on long-term dialysis by HVC antibodies test, PCR HCV-RNA and HCV core antigen test by commercial tests. The prevalence of HCV was 10.7% (17 patients) and genotype 4 was the most common one (64.7%). The sensitivity of HCV core antigen test was 94.1%, the specificity 100%, the positive predictive power 100%, and the negative predictive power 97.9%. In conclusions; patients on maintenance HD in Yemen have a high prevalence of HCV infection comparing with general population; and genotype 4 is predominant. The performance of serological detection of HCV core antigen was better than that of HCV antibodies test and may be an alternative to nucleic acid amplification technology (NAT) for routine monitoring of patients on chronic dialysis.

scholarly journals Addressing the disease burden of vertically-acquired hepatitis C virus (HCV) infection among opioid-exposed infants

2019 ◽  
Author(s):  
Stella Protopapas ◽  
Liza Bronner Murrison ◽  
Scott L Wexelblatt ◽  
Jason T Blackard ◽  
Eric S Hall
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
High Risk ◽  
Disease Burden ◽  
Hcv Infection ◽  
Control Analysis ◽  
Factors Associated ◽  
High Risk Infants ◽  
Urine Testing ◽  
Hcv Testing

Abstract Purpose This study aims to estimate the disease burden of vertically-acquired hepatitis C virus (HCV) in a large Midwestern hospital; and to identify factors associated with HCV diagnostic testing among high-risk infants. Methods Retrospective analysis of an infant cohort (n=58,427) born from 2014-2016 in the Greater Cincinnati region, where universal maternal urine testing is conducted at delivery to assess for intrauterine drug exposure (IUDE). Demographics and birth characteristics were analyzed among high-risk infants to identify factors associated with receiving HCV testing. A nested matched case-control analysis examined the association of pediatric HCV infection and IUDE. Results The HCV prevalence rate among high-risk infants who received testing was 3.6-5.2% of births. Approximately 66.7% of maternally-acquired HCV infections may be missed using current testing recommendations. Prenatal care had no significant effect (aOR 1.2 [95%CI 0.4-3.5]) on the odds of a high-risk infant receiving HCV testing. Opioid-exposed cases had an over 6-fold increase in the odds of HCV infection (aOR 6.2 [95%CI 2.3-16.6]) compared to non-opioid exposed infants. Conclusions IUDE was significantly associated with increased odds of pediatric HCV infection in this population. The gaps in pediatric HCV testing identified in this study, despite known risk level and maternal infection, suggest the need for increased focus on HCV identification in the pediatric population.

scholarly journals Hepatitis C Virus Core Antigen Test in Monitoring of Dialysis Patients

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Gioacchino Li Cavoli ◽  
Carmela Zagarrigo ◽  
Onofrio Schillaci ◽  
Francesca Servillo ◽  
Angelo Tralongo ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Predictive Power ◽  
Hcv Infection ◽  
Health Concern ◽  
Core Antigen ◽  
Antigen Test ◽  
Dialysis Patients ◽  
Hcv Core Antigen ◽  
Routine Monitoring

Hepatitis C virus infection is a persistent worldwide public health concern. The prevalence of HCV infection is much higher in patients on chronic haemodialysis (HD) than in the general population. HCV infection can detrimentally affect patients throughout the spectrum of chronic kidney disease. Despite the control of blood products, hepatitis C virus transmission is still being observed among patients undergoing dialysis. Detection systems for serum HCV antibodies are insensitive in the acute phase because of the long serological window. Direct detection of HCV depends on PCR test but this test is not suitable for routine screening. Recent studies have highlighted the importance of HCV core antigen detection as an alternative to PCR. Few studies exist about the efficacy of HCV core antigen test in dialysis population. We studied the utility of HCV core antigen test in routine monitoring of virological status of dialysis patients. We screened 92 patients on long-term dialysis both by PCR HCV-RNA and HCV core antigen test. The sensitivity of HCVcAg test was 90%, the specificity 100%, the positive predictive power 100%, the negative predictive power 97%, and the accuracy 97%. We think serological detection of HCV core antigen may be an alternative to NAT techniques for routine monitoring of patients on chronic dialysis.

Hepatitis C Virus Screening Among Adolescents Attending a Drug Rehabilitation Center

2019 ◽  
Vol 9 (4) ◽  
pp. 437-441 ◽  
Author(s):  
Neil Dominic Fernandes ◽  
Swagata Banik ◽  
Nazha Abughali ◽  
Bonisha Sthapit ◽  
Neelab Abdullah ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
High Risk ◽  
Hcv Infection ◽  
Health Concern ◽  
High Risk Population ◽  
Drug Rehabilitation ◽  
Rehabilitation Center ◽  
Hcv Screening ◽  
Hcv Testing

Abstract Background Hepatitis C virus (HCV) infection has a strong association with intravenous drug use (IVDU). IVDU is a growing public health concern, even in the adolescent population. To our knowledge, there are no published HCV screening studies targeting high-risk adolescents who attend drug rehabilitation centers. This study was designed to determine the seroprevalence of HCV infection utilizing point-of-care (POC) testing at an adolescent drug rehabilitation center and gain a preliminary understanding of the acceptance rate for HCV screening in this high-risk population. Methods This single-center, observational study was conducted at a major drug rehabilitation center in northeast Ohio from July 2016 to June 2017. The consented adolescents who presented at the center were recruited to participate in HCV screening. The participants were administered a survey to assess their demographics and risk behavior profile followed by HCV testing utilizing a POC test. Results During the study period, 150 adolescents were admitted to the drug rehabilitation center, of whom 100 were approached and 85 agreed to participate. Forty percent of the participants (34/85) were females, and 78% (66/85) were white. HCV prevalence among participants was 5% (4/85), all of whom were females. History of heroin use was reported by 15% (13/85) and it was associated with HCV seropositivity; 100% (4/4) of all HCV-positive individuals reported the use of heroin vs only 11% (9/81) of HCV-negative individuals (P = .0004). Conclusions Our study showed a high prevalence of HCV among adolescents attending a drug rehabilitation center with high acceptance of POC HCV testing.

scholarly journals New hepatitis C virus infection, re-infection and associated risk behaviour in male Irish prisoners: a cohort study, 2019

2021 ◽  
Vol 79 (1) ◽  
Author(s):  
Des Crowley ◽  
Gordana Avramovic ◽  
Walter Cullen ◽  
Collette Farrell ◽  
Anne Halpin ◽  
...  
Keyword(s):  
Cohort Study ◽  
Hepatitis C Virus ◽  
Hepatitis C ◽  
High Risk ◽  
Drug Use ◽  
Risk Behaviour ◽  
Hcv Infection ◽  
High Risk Population ◽  
Heroin Use ◽  
History Of

Abstract Background Prisoners are recognised as a high-risk population and prisons as high-risk locations for the transmission of hepatitis c virus (HCV) infection. Injecting drug use (IDU) is the main driver of HCV infection in prisoners and harm reduction services are often suboptimal in prison settings. HCV prevalence and incident data in prisoners is incomplete which impacts the public health opportunity that incarceration provides in identifying, treating and preventing HCV infection. The aim of this study is to identify new HCV infection and associated risk factors in an Irish male prison. Methods We conducted a follow up (18-month) cohort study on prisoners who had previously tested negative, self-cleared or had been successfully treated for HCV infection. We conducted the study in a male medium security prison located in Dublin Ireland (Mountjoy Prison) using HCV serology, a review of medical records and a researcher-administered questionnaire. Results 99 prisoners with a mean age of 33.2 yrs. participated in the study and 82(82.8%) completed a research-administered questionnaire. Over half (51%) had a history of drug use from a young age (14.8 yrs.), 49.9% a history of heroin use and 39% a history of IDU. The prevalence of HIV and hepatitis B virus core antibody was 3% and HCV antibody was 22.2%. No new HCV infections were identified in those who had never been infected (n = 77), had self-cleared (n = 9) or achieved sustained virological response (n = 12). Small numbers of prisoners continued to engage in risk-behaviour including, IDU both in the prison (n = 2) and the community (n = 3), sharing syringes (n = 1) and drug taking paraphernalia (n = 6) and receiving non-sterile tattoos (n = 3). Conclusion Despite the high numbers of Irish prisoners with a history of IDU and HCV infection, new HCV infection is low or non-existent in this population. Small numbers of prisoners continue to engage in risk behaviour and larger studies are required to further understand HCV transmission in this cohort in an Irish and international context.

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