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- W2143114089 abstract "Karyotypic abnormalities are detected in 20-40% of chronic myelomonocytic leukemia (CMML) patients at initial diagnosis and have been shown to correlate with patients' outcome. The significance of acquisition of cytogenetic abnormalities (ACA) during the course of CMML, however, is largely unknown. In a cohort of 314 CMML patients, karyotypic abnormalities were detected in 106 (34%) patients at the time of diagnosis; and ACA were detected in 80 (25%) patients after a median interval of 17 months (range, 2-117 months). The most frequently observed ACA were a complex karyotype, followed by +21, -7/del(7q), del(20q), i(17q), and -17/del(17p). ACA appeared to occur more frequently in patients with a normal or lower risk karyotype. Progression to AML was seen in 44 of 80 (55%) patients with ACA versus 67 of 234 (29%) patients without ACA (P < 0.0001). Presence of ACA predicted an inferior leukemia-free survival (LFS) by univariate (P = 0.0435) and multivariate analysis (HR = 1.892, P = 0.006). While acquisition of a complex karyotype was positively correlated with AML progression (P = 0.0086), del(20q) was associated with a stable disease (P = 0.0198). We conclude that ACA occur in ∼20-30% of CMML patients during the course of disease, and are significantly associated with AML progression and a shorter LFS. Karyotypic abnormalities, either present at diagnosis or acquired during the course of disease, have prognostic implication in CMML patients." @default.
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- W2143114089 date "2015-08-14" @default.
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- W2143114089 title "Prognostic impact of acquisition of cytogenetic abnormalities during the course of chronic myelomonocytic leukemia" @default.
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- W2143114089 doi "https://doi.org/10.1002/ajh.24108" @default.
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