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- W57141574 abstract "Abstract Background Patients with hyperleukocytic acute myeloid leukemia (AML) have a high mortality rate during induction treatment. This mortality is mainly due to bleeding complications, tumor lysis syndrome and symptoms of hyperleukocitosis. Although there is no clear evidence of benefit, leukapheresis is indicated to reduce the number of leukocytes (WBC) in peripheral blood and prevent or relieve leukostasis symptoms before starting cytotoxic therapy. Objetives Analyze the characteristics of a series of patients with hyperleukocytic AML who started induction treatment and assess the outcome depending on whether leukapheresis was performed or not. Methods All adult patients with hyperleukocytic AML (WBC> 95 x 109 / L) who received induction therapy in the Hospital La Fe between 1979 and 2012 were included. The leukapheresis was indicated according to physician discretion. The characteristics and mortality of both groups, patients who underwent leukapheresis and non-leukapheresis, were compared. Then a “matched-paired analysis” was performed according to ECOG, WBC and coagulopathy in a 2:1 ratio to compare results from two homogeneous cohorts. Results One hundred and forty patients diagnosed with hyperleukocytic AML received induction therapy, 18 of them underwent leukapheresis. Patients who underwent leukapheresis compared with non-leukapheresis showed a median age of 55 years (16-71) vs 58 (14-75) and WBC at diagnosis of 198 ´ 109 / L (101-620) vs 141 (97-375), respectively. The leukapheresis group had a worse ECOG (p = 0.03), more leukocytes (p = .003), more coagulopathy (p = .03), more leukostasis symptoms (p <.001) and more mortality at 7 days (p = .02). From the “matched-paired analysis”, 2 cohorts were obtained, whose characteristics are shown in Table 1. After comparing the group of leukapheresis and non-leukapheresis (n = 36), there were no significant differences between them, including leukocyte count, ECOG, coagulopathy and leukostasis. There were also no significant differences in mortality at 7, 14, 21 and 28 days (p = .60, p = .99, p = .92, p = .99, respectively). Conclusions Patients diagnosed with hyperleukocytic AML who underwent leukapheresis showed more leukocytes, leukostasis and coagulopathy. After analizying two comparable groups, leukapheresis failed to reduce mortality. Disclosures: No relevant conflicts of interest to declare." @default.
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- W57141574 date "2013-11-15" @default.
- W57141574 modified "2023-10-18" @default.
- W57141574 title "Treatment With Leukapheresis In Patients Diagnosed With Hyperleukocytic Acute Myeloid Leukemia" @default.
- W57141574 doi "https://doi.org/10.1182/blood.v122.21.5046.5046" @default.
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