PMID- 21928360 OWN - NLM STAT- MEDLINE DCOM- 20120612 LR - 20211020 IS - 1097-0142 (Electronic) IS - 0008-543X (Print) IS - 0008-543X (Linking) VI - 118 IP - 9 DP - 2012 May 1 TI - Prognostic impact of discordant results from cytogenetics and flow cytometry in patients with acute myeloid leukemia undergoing hematopoietic cell transplantation. PG - 2411-9 LID - 10.1002/cncr.26539 [doi] AB - BACKGROUND: Cytogenetics and multicolor flow cytometry (MFC) are useful tools for monitoring outcome of treatment in acute myeloid leukemia (AML). However, no data are available regarding the meaning of results when the 2 tests do not agree. METHODS: The authors of this report analyzed 1464 pairs of concurrent cytogenetics and flow results from 424 patients, before and after hematopoietic cell transplantation, and compared the prognostic impact of discordant and concordant results. RESULTS: Informative discordant results were observed in 22% of patients. Compared with patients who had double-negative test results, either positive result had a significant impact on overall survival and relapse-free survival. The hazard ratios with either positive cytogenetic results or positive MFC results pretransplantation were 3.1 (P = .009) and 2.5 (P = .0008), respectively, for reduced overall survival and 2.7 (P = .01) and 4.1 (P < .0001), respectively, for decreased recurrence-free survival. Similar findings were obtained post-transplantation. Molecular cytogenetics, ie, fluorescence in situ hybridization (FISH), added value to the evaluation of discordant cases. CONCLUSIONS: The detection of residual AML by either cytogenetics or flow cytometry in patients who underwent hematopoietic cell transplantation predicted early relapse and shortened survival. CI - Copyright (c) 2011 American Cancer Society. FAU - Fang, Min AU - Fang M AD - Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109-1023, USA. mfang@fhcrc.org FAU - Storer, Barry AU - Storer B FAU - Wood, Brent AU - Wood B FAU - Gyurkocza, Boglarka AU - Gyurkocza B FAU - Sandmaier, Brenda M AU - Sandmaier BM FAU - Appelbaum, Frederick R AU - Appelbaum FR LA - eng GR - P01CA018029/CA/NCI NIH HHS/United States GR - P01CA078902/CA/NCI NIH HHS/United States GR - P01 CA078902/CA/NCI NIH HHS/United States GR - P30CA15704/CA/NCI NIH HHS/United States GR - P01 CA018029/CA/NCI NIH HHS/United States GR - P30 CA015704/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20110916 PL - United States TA - Cancer JT - Cancer JID - 0374236 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Child MH - Child, Preschool MH - *Cytogenetics MH - Disease-Free Survival MH - Female MH - Flow Cytometry/*methods MH - *Hematopoietic Stem Cell Transplantation MH - Humans MH - In Situ Hybridization, Fluorescence MH - Infant MH - Infant, Newborn MH - Karyotyping MH - Leukemia, Myeloid, Acute/mortality/*therapy MH - Male MH - Middle Aged MH - Neoplasm, Residual/diagnosis MH - Recurrence MH - Treatment Outcome PMC - PMC3536054 MID - NIHMS420787 COIS- Conflict-of-interest disclosure: The authors declare no competing financial interests. EDAT- 2011/09/20 06:00 MHDA- 2012/06/13 06:00 PMCR- 2013/05/01 CRDT- 2011/09/20 06:00 PHST- 2011/06/01 00:00 [received] PHST- 2011/07/27 00:00 [revised] PHST- 2011/08/10 00:00 [accepted] PHST- 2011/09/20 06:00 [entrez] PHST- 2011/09/20 06:00 [pubmed] PHST- 2012/06/13 06:00 [medline] PHST- 2013/05/01 00:00 [pmc-release] AID - 10.1002/cncr.26539 [doi] PST - ppublish SO - Cancer. 2012 May 1;118(9):2411-9. doi: 10.1002/cncr.26539. Epub 2011 Sep 16.