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Published on: June 5, 2020
Infection phase is a predictor of pruritus in patients with hepatitis B virus infection
Satoshi Oeda1, Hirokazu Takahashi2, Hiroshi Isoda2
1Liver Center, Saga University, Saga-Shi, Saga 849-8501, Japan.
Insights
Pruritus is less common in the inactive phase of chronic hepatitis B (CHB) compared to the immune-active phase. Inactive CHB is an independent protective factor against pruritus in hepatitis B virus patients.
Area of Science:
- Hepatology
- Viral Hepatitis
- Dermatology
Background:
- Pruritus is a frequent symptom in liver diseases, including chronic hepatitis B (CHB).
- Hepatitis B virus (HBV) infection has distinct phases, but their independent effect on pruritus is not well-defined.
Purpose of the Study:
- To investigate the association between HBV infection phase and pruritus in patients with CHB.
- To determine if the inactive CHB phase independently influences pruritus prevalence.
Main Methods:
- Retrospective analysis of 196 CHB patients from a cohort of 1,631.
- One-to-one propensity score matching (13 variables) comparing immune-active and inactive CHB phases.
- Pruritus prevalence assessed via patient interviews.
Main Results:
- Pruritus prevalence was significantly lower in the inactive CHB phase (23%) versus the immune-active phase (47%; P=0.031).
- Inactive CHB phase was identified as an independent protective factor against pruritus (OR, 0.35; 95% CI, 0.143-0.842; P=0.019).
Conclusions:
- The inactive phase of CHB is associated with a reduced risk of pruritus.
- Progression to the inactive CHB phase may alleviate pruritus in patients with HBV infection.
Abstract:
Pruritus is a common pathogenesis in liver diseases, including chronic hepatitis B (CHB). The phases of hepatitis B virus (HBV) infection are defined in the American Association for the Study of Liver Diseases guidelines. However, it still remains unclear whether the phase independently affects pruritus. The aim of this study was to clarify the effect of HBV infection phase on pruritus in patients with HBV. Of the 1,631 patients that attended the joint research facilities and were interviewed regarding their pruritus between January and June 2016, 196 patients with HBV infection were selected for the present analysis. One-to-one propensity score-matching using 13 variables was performed between participants in the hepatitis B e antigen (HBe-Ag)-positive/negative immune-active phase group and the inactive CHB phase group. Data from 47 patients per group were included in the final analysis. The prevalence of pruritus in the inactive CHB phase was significantly lower than in the HBe-Ag-positive/negative immune-active phase (23 vs. 47%; P=0.031). Being in the inactive CHB phase was determined to be an independent risk factor for pruritus (odds ratio, 0.35; 95% confidence interval, 0.143-0.842; P=0.019). The progression to inactive CHB phase may contribute to the amelioration of pruritus in patients with HBV infection.
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