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Reactivation of hepatitis B virus infection in patients with hematologic disorders.

ABSTRACT: Hepatitis B reactivation is the reappearance or rise of hepatitis B virus (HBV) DNA in patients with past or chronic HBV infection, usually occurring in the context of immunosuppression. HBV reactivation has been most commonly reported in patients with hematologic disorders, with potentially serious and life-threatening consequences. In this review, we discuss the basis and presentation of HBV reactivation, and risk factors in terms of the host, the virus and the immunosuppression regimen, including newer agents used to manage hematologic malignancies. We overview the management of HBV reactivation, highlighting an up-dated recommendation on the use of newer nucleoside and nucleotide analogs, such as tenofovir and entecavir, for antiviral prophylaxis.

SUBMITTER: Wang B

PROVIDER: S-EPMC6395346 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Reactivation of hepatitis B virus infection in patients with hematologic disorders.

Wang Bo B Mufti Ghulam G Agarwal Kosh K

Haematologica 20190207 3

Hepatitis B reactivation is the reappearance or rise of hepatitis B virus (HBV) DNA in patients with past or chronic HBV infection, usually occurring in the context of immunosuppression. HBV reactivation has been most commonly reported in patients with hematologic disorders, with potentially serious and life-threatening consequences. In this review, we discuss the basis and presentation of HBV reactivation, and risk factors in terms of the host, the virus and the immunosuppression regimen, inclu ...[more]

PMID: 30733266

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Project description:Patients with resolved hepatitis B virus (HBV) infection who are treated for hematological malignancies remain at risk for HBV reactivation. Because of conflicting studies about whether the antibody to hepatitis B surface antigen (anti-HBs) protects against reactivation in patients with resolved infection (hepatitis B surface antigen negative) receiving chemotherapy for hematological malignancies, we conducted a meta-analysis to determine if anti-HBs reduces HBV reactivation risk. We sought English-language studies through March 1, 2016, in Medline and other sources that examined reactivation in patients with resolved HBV infection receiving chemotherapy for hematologic malignancies. The absolute risks and odds ratio (OR) of reactivation with versus without anti-HBs were estimated in random-effects model meta-analyses. In 20 studies involving 1,672 patients not receiving antiviral prophylaxis, the reactivation risk was 14% (95% confidence interval [CI] 9.4%-19%) in 388 patients who had antibodies to hepatitis B core antigen only versus 5.0% (95% CI 3.0%-7.0%) in 1,284 patients who also had anti-HBs. Anti-HBs reduced reactivation risk with a pooled OR of 0.21 (95% CI 0.14-0.32) versus patients with antibody to hepatitis B core antigen only. Similar results were found when limiting the analysis to rituximab chemotherapy (OR = 0.19, 95% CI 0.11-0.32) and lymphoma (OR = 0.18, 95% CI 0.11-0.28).ConclusionIn patients with resolved HBV receiving chemotherapy for hematological malignancies without antiviral prophylaxis, anti-HBs positivity is associated with a decreased risk of reactivation; HBV screening in this patient population should include the routine use of anti-HBs, and those who are anti-HBs-negative should receive antiviral prophylaxis. Future studies should examine the effect of anti-HBs serum titers, the potential role for booster vaccinations, and antiviral prophylaxis prior to chemotherapy in this patient population. (Hepatology 2017;66:379-388).

Project description:Hepatitis C virus (HCV) reactivation in patients receiving cancer treatment has been reported in retrospective studies. We sought to determine prospectively the incidence, predictors, and clinical significance of HCV reactivation during cancer treatment. HCV-infected patients receiving cancer treatment at our institution between November 2012 and July 2016 were studied. Reactivation was defined as an increase in HCV-RNA ≥1 log10 IU/mL over baseline and hepatitis flare as an increase in alanine aminotransferase to ≥3 times the upper limit of normal. One hundred patients were studied, 50 with hematologic malignancies and 50 with solid tumors. Reactivation occurred in 23 (23%) patients, including 18 (36%) patients with hematologic malignancies and 5 (10%) patients with solid tumors. In univariate analysis, patients with reactivation were more likely than those without reactivation to have prolonged lymphopenia (median, 95 versus 22 days; P = 0.01) and to have received rituximab (44% versus 9%; P < 0.0001), bendamustine (22% versus 0%; P < 0.001), high-dose steroids (57% versus 21%; P = 0.001), or purine analogs (22% versus 5%; P = 0.02). Rituximab (odds ratio = 9.52; P = 0.001), and high-dose steroids (odds ratio = 5.05; P = 0.01) retained significance in multivariable analysis. Of the 23 patients with reactivation, 10 (43%) had hepatitis flare. No patient with reactivation experienced liver failure or liver-related death within 36 weeks after initiation of cancer treatment. Fourteen patients with hepatitis flare, six of whom had reactivation, required discontinuation or dose reduction of cancer treatment.ConclusionHCV reactivation occurred in 23% of HCV-infected patients receiving cancer treatment, and most had an unremarkable clinical course. However, reactivation can affect the cancer treatment plan. Our findings suggest that HCV infection should not contraindicate cancer therapy and infected patients should have access to multiple cancer treatments with close monitoring while receiving regimens associated with HCV reactivation. (Hepatology 2018;67:36-47).

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Reactivation of hepatitis B virus infection in patients with hematologic disorders.

Publications

Reactivation of hepatitis B virus infection in patients with hematologic disorders.

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