Acute myelogenous leukemia in elderly patients not eligible for intensive chemotherapy: the dark side of the moon

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Abstract
Background: Acute Myelogenous Leukemia (AML) is a common disease in people aged >60 years. About 50% of the patients are not eligible for aggressive chemotherapy (CT) and are only managed with conservative approaches. Results in this subset of patients have not been reported so far. Patients and methods: We retrospectively evaluated 244 consecutive elderly AML patients (M/F 143/101, median age 72 years, range 60–90) diagnosed at our institution from January 1989 to December 1998 and not eligible for intensive CT. Eighty-nine patients (36.5%) had evolved from previous myelodysplasia (sAML). Fifty-three out of 192 (26.4%) patients with available bone marrow (BM) analysis had oligoblastic leukaemia (blasts 75 years), poor WHO PS (>2), lower PLT levels (5 × 109/l) showed a negative prognostic impact on survival in multivariate analysis. Conclusions: Our data outline the great heterogeneity of elderly AML patients not eligible for intensive CT. A simple scoring system including easily evaluable parameters, which could distinguish subjects with different prognosis, is proposed. Moreover, randomized studies in order to establish best conservative approaches are warranted.