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- W1992679346 abstract "Dear Editor, We read with interest the article by Yi-Fu H. et al. [1] about the effectiveness of Lamivudine (LAM) prophylaxis in preventing hepatitis B viral (HBV) reactivation in Rituximab containing regimens (so called immunochemotheraphy, ICT) for lymphoma and would like to make a contribution to this emerging topic. All patients diagnosed with Non-Hodgkin Lymphoma (NHL) from January 2005 to March 2008, at our Institution, were screened for HBV serology: HBsAg, anti-HBs, anti-HBc, HBeAg, anti-HBe. Patients were also tested for HCV antibodies (HIV-positive patients were not included): 18 out of 159 patients (11.3%) had serological signs of HBV exposure. 12 out of 159 (8.1%) patients were HCV-infected. Seven out of 18 HBV carriers were coinfected with HCV (38.8%). In 11 out of 18 patients (61%), HBsAg were negative [2], anti-HBc (nine patients), anti-HBs (one patient, no history of previous vaccination), anti-HBc/anti-HBe/anti-HBs (one patient) being the only positive markers of previous HBV exposure. Three patients were known to be affected by mild HBV chronic active hepatitis at the time of lymphoma diagnosis and were treated with LAM to contain the disease process before and after ICT. The remaining four inactive HBsAg carriers and the 11 HBsAg-negative/antiHBc-positive patients were started on LAM as a preemptive treatment to prevent possible disease reactivation [3]. Patients began treatment with LAM 100 mg/day po on average 3–4 weeks before embarking on chemotherapy, after signing informed consent. All 159 patients were given R-CHOP or R-CHOP-like regimens [4]. LAM treatment was extended to 18 months after that the new indications from the dedicated commission of the Italian Study of the Liver became widely available in 2007 [3]. During and after ICT discontinuation, patients were tested every 2 months for HBsAg, quantitative-HBV-DNA, ALT, and AST. Median follow-up time was 7 months (range 3–43). Five of the seven HBsAg-positive patients (71.4%) became HBV-DNA positive during follow-up at 25, 18, 18, 10, and 7 months after commencing LAM. In two patients, emergence of HBV-DNA positivity was associated with an increase of serum transaminases (up to five times the upper normal limit). In these five patients, AdefovirDipivoxyl, 10 mg/day po, was combined with LAM, resulting in a disappearance of HBV-DNA and regression of the biochemical signs of hepatitis. None of these patients had to discontinue ICT because of HBV reactivation. No liver-related deaths occurred. None of the HBcAbpositive, anti-HBs-positive/HBsAg-negative patients (potential silent carriers) developed HBV reactivation during the period of observation. No side effect related either to LAM or ADV was registered. Four out of seven of these patients are now undergoing new treatments because of lymphoma progression. The prevalence of HBV infection is high among patients diagnosed with NHL as compared to less than 2% of the Italian adult population [5]. Reactivation of HBV infection can present a serious threat to these patients and to the Ann Hematol (2009) 88:283–284 DOI 10.1007/s00277-008-0609-2" @default.
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- W1992679346 date "2008-09-20" @default.
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- W1992679346 title "Is management with lamivudine always the appropriate choice for HBV patients with onco-hematologic diseases?" @default.
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- W1992679346 doi "https://doi.org/10.1007/s00277-008-0609-2" @default.
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