Evidence map›Paper›PMID 33886631›Full record

ArticlePloS one2021

Clinical utility of hepatitis C virus core antigen (HCVcAg) assay to identify active HCV infection in hemodialysis and renal transplant patients.

Suresh Ponnuvel, Gnanadurai John Fletcher, Raghavendran Anantharam, Santosh Varughese, Vinoy George David, Priya Abraham

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. [HCV antigen detection method and clinical application].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2024
    Review
  5. Article
  6. Viral Hepatitis - The Road Traveled and the Journey Remaining.Hepatic medicine : evidence and research · 2022
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Suresh PonnuvelDepartment of Clinical Virology, Christian Medical College, Vellore, Tamil Nadu, India.
Gnanadurai John FletcherDepartment of Clinical Virology, Christian Medical College, Vellore, Tamil Nadu, India.
Raghavendran AnantharamDepartment of Clinical Virology, Christian Medical College, Vellore, Tamil Nadu, India.
Santosh VarugheseDepartment of Nephrology, Christian Medical College, Vellore, Tamil Nadu, India.
Vinoy George DavidDepartment of Nephrology, Christian Medical College, Vellore, Tamil Nadu, India.
Priya AbrahamDepartment of Clinical Virology, Christian Medical College, Vellore, Tamil Nadu, India.ORCID 0000-0002-2873-9101
Christian Medical College, Vellore · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prevalence of HCV infection is high and it is a major cause of liver-related morbidity and mortality in hemodialysis and renal transplant patients. Diagnosis of hepatitis C virus (HCV) infection requires both HCV antibody screening and confirmatory nucleic acid testing (NAT). Hepatitis C virus core antigen (HCVcAg) is a reliable direct viral marker to identify active HCV infection.

aimTo assess the clinical utility of HCV core antigen to identify active HCV infection in hemodialysis and renal transplant patients.

methodsA representative total of 231 plasma samples with a predominance of low viral load were included for HCVcAg testing and its performance characteristics were compared with the gold standard HCV RNA.

resultsComparison of HCVcAg with HCV RNA showed an excellent specificity of 99% (95% CI: 94.7 to 100%) and sensitivity of 80.62% (95% CI: 73.59 to 87.7%). Likewise, the PPV and NPV of HCVcAg were 99.1% (95% CI: 93.7% to 99.9%) and 80.2% (95% CI: 74% to 85.2%) respectively. The correlation between HCVcAg and HCV RNA was found to be good (R2 = 0.86, p<0.0001). Among common Indian HCV genotypes (1, 3 & 4), good correlation was observed between HCV RNA and HCVcAg (R2 = 0.81, p <0.0001).

conclusionsIt is the first Indian study to show that HCVcAg is a reliable, cost-effective direct marker to identify active HCV infection in hemodialysis and renal transplant patients. Implementation of HCVcAg testing could improve the accessibility to efficacious and affordable disease management in hemodialysis and renal transplant patients. In HCVcAg negative cases, sequential testing with anti-HCV antibody followed by HCV RNA could be a reliable and cost-effective approach.

Indexed as

Kidney TransplantationRenal DialysisAdultBiomarkersFemaleGenotypeHepacivirusHepatitis C AntigensHepatitis C, ChronicHumansImmunoassayIndiaLuminescent MeasurementsMaleReproducibility of ResultsRNA, ViralBiomarkersHepatitis C Antigensnucleocapsid protein, Hepatitis C virusRNA, ViralViral Core Proteins

Identifiers

PMID33886631
PMCPMC8061997
OpenAlexW3153135386

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.