TL;DR: In this paper, the prognostic impact of cytogenetic abnormalities on complete remission (CR) rate, 5-year cumulative incidence of relapse (CIR), and 5-to-5-year overall survival (OS) of acute myeloid leukemia (AML) patients was investigated.
TL;DR: The observation that Ho-Tr and, for the first time, karyotype complexity confer an increased risk of treatment failure demonstrates that cytogenetic subgroups other than the Ph chromosome can and should be used to risk stratify adults with ALL in future trials.
TL;DR: TP53 alteration is the most important prognostic factor in CK-AML, outweighing all other variables, including the MK category, and in multivariable analysis for overall survival, TP53 alterations, white blood cell counts, and age were the only significant factors.
TL;DR: A monosomal karyotype (MK) is derived as a predictor for very poor prognosis of AML that refers to two or more distinct autosomal chromosome monosomies or one single autosomal monosomy in the presence of structural abnormalities.
Abstract: Purpose To investigate the prognostic value of various cytogenetic components of a complex karyotype in acute myeloid leukemia (AML). Patients and Methods Cytogenetics and overall survival (OS) were analyzed in 1,975 AML patients age 15 to 60 years. Results Besides AML with normal cytogenetics (CN) and core binding factor (CBF) abnormalities, we distinguished 733 patients with cytogenetic abnormalities. Among the latter subgroup, loss of a single chromosome (n = 109) conferred negative prognostic impact (4-year OS, 12%; poor outcome). Loss of chromosome 7 was most common, but outcome of AML patients with single monosomy −7 (n = 63; 4-year OS, 13%) and other single autosomal monosomies (n = 46; 4-year OS, 12%) did not differ. Structural chromosomal abnormalities influenced prognosis only in association with a single autosomal monosomy (4-year OS, 4% for very poor v 24% for poor). We derived a monosomal karyotype (MK) as a predictor for very poor prognosis of AML that refers to two or more distinct autosoma...
TL;DR: Cytogenetic findings have a strong prognostic impact in patients with chronic myelomonocytic leukemia and were confirmed as an independent prognostic variable for overall survival on univariate and multivariate analysis.
Abstract: Background The prognostic value of cytogenetic findings in chronic myelomonocytic leukemia is unclear. Our purpose was to evaluate the independent prognostic impact of cytogenetic abnormalities in a large series of patients with chronic myelomonocytic leukemia included in the database of the Spanish Registry of Myelodysplastic Syndromes.Design and Methods We studied 414 patients with chronic myelomonocytic leukemia according to WHO criteria and with a successful conventional cytogenetic analysis at diagnosis. Different patient and disease characteristics were examined by univariate and multivariate methods to establish their relationship with overall survival and evolution to acute myeloid leukemia.Results Patients with abnormal karyotype (110 patients, 27%) had poorer overall survival (P=0.001) and higher risk of acute myeloid leukemia evolution (P=0.010). Based on outcome analysis, three cytogenetic risk categories were identified: low risk (normal karyotype or loss of Y chromosome as a single anomaly), high risk (presence of trisomy 8 or abnormalities of chromosome 7, or complex karyotype), and intermediate risk (all other abnormalities). Overall survival at five years for patients in the low, intermediate, and high risk cytogenetic categories was 35%, 26%, and 4%, respectively (P