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- W3025157210 abstract "The emergence of herpes simplex virus (HSV) resistance to aciclovir (ACV) has increasingly been reported among hematopoietic stem cell transplant (HSCT) recipients and often associated with extended ACV prophylaxis. Between June 2011 and June 2019, medical records of 532 HSCT recipients with suspected HSV infection were retrospectively analyzed. HSV-1 and HSV-2 positive samples were identified in 47 and 16 patients respectively. Analysis of HSV resistance to antivirals was performed at the Public Health England reference laboratory in London using phenotypic and/or genotypic resistance assays. The prevalence of ACV-resistant HSV accounted for 17% (8/48) of infected HSV-1 cases. All 8 patients received T-cell depleted allogeneic HSCT for hematological malignancies. Half of these patients were male with a median age was 57.5 years (range; 26–63). Chronic Graft versus Host disease (cGVHD) affected 7 patients before HSV-1 diagnosis. HSV-1 infection developed while receiving either intravenous ACV (n = 2) or oral ACV (n = 6 patients) prophylaxis at a median of 373 [range,18–2183] days post-HSCT. ACV resistance was clinically suspected at a median of 25 [range,16–109] days after initial HSV diagnosis and subsequently laboratory confirmed at a median of 25 (range,10–59) days. All patients presented with hemorrhagic oral mucositis refractory to treatment dose ACV. Foscarnet (FOS) treatment was initiated in all 8 patients (pending laboratory confirmation of ACV resistance) with some effect but associated with significant toxicity burden. Four patients presented again with recurrent HSV infection or no resolution. Three with recurrent HSV died from other causes while suffering from persistent oral HSV lesions. A prolonged immunosuppressed state following T-deplete HSCTs alongside extended use of ACV, early onset systemic HSV infection, presence of cGVHD, and treatment toxicities pose a significant challenge to the management of ACV resistant HSV infections and alternative effective antiviral options remains an unmet need in this clinical setting." @default.
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- W3025157210 date "2020-07-01" @default.
- W3025157210 modified "2023-09-24" @default.
- W3025157210 title "Challenges of aciclovir-resistant HSV infection in allogeneic bone marrow transplant recipients" @default.
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- W3025157210 doi "https://doi.org/10.1016/j.jcv.2020.104421" @default.
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