• Wenyuan Lai, Yini Wang, Jingshi Wang, Lin Wu, Zhili Jin, and Zhao Wang.
• a Department of Hematology , Beijing Friendship Hospital, Capital Medical University , Beijing , People's Republic of China.
• Hematology. 2018 Dec 1; 23 (10): 810-816.

ObjectivesEpstein-Barr virus-associated hemophagocytic lymphohistiocytosis is the most common type of infection-associated HLH. Previous studies were focused on pediatric EBV-HLH patients, therefore there lack of adult data.MethodWe performed a retrospective analysis of 133 EBV-HLH patients (≥14 years old) in Beijing Friendship Hospital from March 2009 to April 2016 to evaluate the clinical manifestation and the effects and prognosis of existing regimens of EBV-HLH in adult and adolescents.ResultsOf these patients, 91 male and 42 female cases had a median age of 26 (14-77) years. EBV-DNA load on admission was at a median of 6.6E + 05 IU/ml. The one-year mortality of these patients was 78%. 112 patients received the HLH-94/04 regimen as the initial treatment, 52 patients (46.43%) had response. Of the 6 patients who received the L-DEP regimen as the initial treatment, 5 patients (83.33%) had response. The rest 15 patients received initial treatment without etoposide, 5 cases achieved PR. 69 refractory or relapsed patients received DEP or L-DEP regimen, 55 (79.71%) cases had response. In addition, who received the L-DEP regimen, with the overall response rate significantly higher than the DEP regimen (88.37% VS 65.38%, P = 0.031). 36 out of 133 EBV-HLH patients eventually received allo-HSCT, with the overall survival rate of 52.78%. In summary, EBV-HLH is a highly lethal disease.ConclusionDEP/L-DEP was a good salvage treatment. L-DEP might be a more effective first-line initial regimen than HLH-94/04 regimen for EBV-HLH. Finally, allo-HSCT is an effective radical treatment for EBV-HLH.

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