Treatment of chronic hepatitis C genotype 1 early responders with 36 week pegylated interferon and ribavirin therapy

Epidemiology of hepatitis C virus infection in a tertiary care hospital

BACKGROUND

There are epidemiological lacunae in literature of hepatitis C virus (HCV) infection. We report a prospective observational study of asymptomatic HCV infected patients from a tertiary care Government Hospital.

METHODS

All consecutive asymptomatic antibodies to hepatitis C virus (anti-HCV) positive patients were studied from July 2011 to April 2016. Patients were reviewed for demographic factors including symptom profile, risk factors, family screening, and point prevalence in relation to various districts of Punjab and Haryana.

RESULTS

One thousand twelve patients were studied with median age of 52 years (range:13-85) with a male to female ratio of 0.87. Eight hundred (79.25%) patients were from Punjab and 110 (10.67%) from Haryana. Forty percent patients were in 40-60 age group. Six hundred seventy patients (66.21%) did not have any apparent risk factor, 274 (27.08%) had one risk factor, and 68 patients (6.72%) had > 2 risk factors. Commonest risk factor was h/o surgery in 243 patients (24.01%), 32 patients had h/o IV drug abuse and 29 among them were < 30 years. Three hundred and sixty-seven families and children were screened, and 27 spouses and 16 children were found to be anti-HCV positive. The risk factor of IV drug abuse was more common in the younger adults with age ≤ 30 years as compared with age > 30 years (p = 0.001).

CONCLUSION

HCV infection was common in certain districts of Punjab and common in adults of 40-60 years. This finding needs to be confirmed in larger population-based study. The IV drug abuse is the risk factor of concern among young adults.

Comparison of Abbott RealTime genotype II, GeneMatrix restriction fragment mass polymorphism and Sysmex HISCL HCV Gr assays for hepatitis C virus genotyping

Background:

Hepatitis C virus (HCV) genotype is a predictive marker for treatment response. We sequentially evaluated the performances of two nucleic acid amplification tests (NAATs) and one serology assay for HCV genotype: Abbott RealTimegenotype II (RealTimeII), GeneMatrix restriction fragment mass polymorphism (RFMP), and Sysmex HISCL HCV Gr (HISCL Gr).

Methods:

We examined 281 clinical samples with three assays. The accuracy was assessed using the HCV Genotype Performance Panel PHW204 (SeraCare Life Sciences) for two NAATs. Discrepant cases were re-genotyped by the Versant HCV v.2.0 (line probe 2.0) assay.

Results:

With the RealTimeII assay, clinic samples were analyzed as follows: genotypes 1b (43.1%), 2 (40.2%), 1 subtypes other than 1a and 1b (12.5%), 3 (1.8%), 4 (1.4%), 1a (0.7%), 6 (0.4%), and mixed (1.1%). The RealTimeII and RFMP assays showed a type concordance rate of 97.5% (274/281) (κ=0.80) and no significant discordance (p=0.25). Both assays accurately genotyped all samples in the Performance Panel by the subtype level. The HISCL Gr assay showed concordance rates of about 91% (κ<0.40) and statistically significant discordances with two NAATs (p<0.05). In confirmation tests, the results of RFMP assay were the most consistent with those of Versant 2.0 assay.

Conclusions:

The three HCV assays provided genotyping and serotyping results with good concordance rates. The two NAATs (RealTimeII and RFMP) showed comparable performance and good agreement. However, the results of the HISCL Gr assay showed statistically significant differences with those of the NAATs.