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COLLECTION AND TRANSPLANTATION OF PERIPHERAL BLOOD PROGENITOR CELLS MOBILIzED BY G‐CSF ALONE IN CHILDREN WITH MALIGNANCIES

Results of collection and transplantation of peripheral blood progenitor cells (PBPC) mobilized by G‐CSF in 31 children with different malignancies were analysed. A total of 43 aphereses were performed, following administration of granulocyte colony‐stimulating factor (G‐CSF), using a continuous flow blood cell separator (Cobe Spectra) through a central venous catheter. For patients weighing ≤25 kg the extracorporeal line was primed with red blood cells. The mean blood flow rate was 33.2ml/min (range 12–56ml/min). The mean number of mononuclear cells (MNC), granulocyte‐macrophage colony‐forming units (CFU‐GM) and CD34+ cells collected were 7.22×108/kg body weight (b.w.), 15.9×104/kg and 5.44×106/kg respectively.