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Updated: May 20, 2026

Chromosome Preparation From Cultured Cells
Published on: January 28, 2014
Complex karyotype predicts for inferior outcomes following reduced-intensity conditioning allogeneic transplant for
Samantha M Jaglowski1, Amy S Ruppert, Nyla A Heerema
1Division of Hematology, Department of Medicine, The Ohio State University, Columbus, OH, USA. samantha.jaglowski@osumc.edu
Abstract:
Complex karyotype (CK) on metaphase cytogenetics discriminates poor outcome in chronic lymphocytic leukaemia (CLL) patients undergoing salvage treatment; we hypothesized that it might provide prognostic information for patients undergoing allogeneic stem cell transplant. Fifty-one CLL patients were analysed following transplant; 18-month overall survival (OS), event-free survival (EFS) and cumulative incidence of progression estimates were 35%, 14% and 63%, respectively, in patients with CK (n = 19) versus 83%, 68% and 29% in patients without (n = 32) (P ≤ 0·0001, P ≤ 0·0001, and P = 0·02). In patients with high-risk interphase cytogenetics, CK remained predictive of worse OS (P = 0·02) and EFS (P = 0·009). These findings support further evaluation of metaphase karyotype in transplant risk assessment.
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