Clinical Edge

Summaries of Must-Read Clinical Literature, Guidelines, and FDA Actions

How Platelet, Reticulocyte Fraction Levels Impact MPNs

Ann Hematol; ePub 2017 Feb 28; Strati, Bose, et al

Both immature platelet fraction (IPF) and the immature reticulocyte fraction (IRF) appear to have a clinical impact in people with myeloproliferative neoplasms, according to a prospective analysis involving 217 individuals with MPNs.

Participants had either essential thrombocythemia (ET; 15%), polycythemia vera (PV; 20%), or myelofibrosis (MF; 65%). Investigators measured IPF and IRF. Among the results:

  • PV and MF patients experienced higher levels of IPF and IRF.
  • Male gender, thrombocytopenia, and PV diagnosis played a role in high IPF in PV and ET patients.
  • For MF patients, the key factors in high IPF were elevated peripheral blasts, low platelet count, JAK2 V617F mutation, and previous therapy.
  • Low hemoglobin, high reticulocyte count, and PV diagnosis played a role in high IRF in PV and ET patients.
  • For MF patients, the key factors in high IRF were peripheral blasts and elevated reticulocytes.

Citation:

Strati P, Bose P, Lyle L, et al. Novel hematological parameters for the evaluation of patients with myeloproliferative neoplasms: The immature platelet and reticulocyte fractions. [Published online ahead of print February 28, 2017]. Ann Hematol. doi:10.1007/s00277-017-2956-3.