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Usefulness of Leucocyte Cell Population Data by Sysmex XN1000 Hematology Analyzer in Rapid Identification of Acute Leukemia


Leukocyte cell population data (CPD) generated by hematology auto analyzers are reported to be useful in screening of sepsis patients. However, there is a paucity of literature highlighting the utility of CPD in screening of acute leukemias (AL). Leucocyte CPD obtained by Sysmex XN1000 hematology analyzer from 210 cases of ALs [22 acute promyelocytic leukemia (APL), 79 non-APL acute myeloid leukemia (non-APL-AML) and 109 acute lymphoblastic leukemia (ALL)] were compared with 100 healthy and 52 reactive controls. Receiver operator curves were drawn to determine the cut-off values of individual parameters. The regression equations combining the best parameters were then formulated to calculate a cut-off value for discrimination among AL subgroups and controls. Acute leukemias showed significant differences (p < 0.05) in various CPD parameters compared to control subjects. A combination of best CPD parameters discriminated ALs from healthy controls (cut off; 0.443, sensitivity of 94% and specificity of 91%), ALs from reactive controls (cut off; 0.576, sensitivity; 97%, specificity; 92%), APL from non-APL-AML (cut off; 0.174, sensitivity of 91% and specificity of 67%), and AML from ALL (cut off; 1.338, sensitivity; 86.1%, specificity; 75%). The CPD from Sysmex XN 1000 analyzer could be a useful tool in screening and lineage characterization of acute leukemias; particularly at centers where high-end technical expertise is still not available.

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Correspondence to Gaurav Chhabra.

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Mishra, S., Chhabra, G., Padhi, S. et al. Usefulness of Leucocyte Cell Population Data by Sysmex XN1000 Hematology Analyzer in Rapid Identification of Acute Leukemia. Indian J Hematol Blood Transfus 38, 499–507 (2022).

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  • Automated hematology analyzers
  • Acute leukemia
  • CPD
  • Sysmex XN 1000