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  • Title: [Autologous stem-cell transplantations in children with non-Hodgkin lymphomas].
    Author: Wójcik B, Kowalczyk JR, Chybicka A, Wachowiak J, Drabko K, Zaucha-Prazmo A, Choma M, Gorczyńska E, Toporski J, Turkiewicz D, Kałwak K, Pieczonka A, Boruczkowski D.
    Journal: Przegl Lek; 2004; 61 Suppl 2():53-6. PubMed ID: 15686047.
    Abstract:
    From January 1st 1995 to March 31st 2003 a total of 51 autologous stem-cell transplantations (auto-HSCT) in 49 children with non Hodgkin lymphomas (NHL) were carried out in the transplantation centres of the Polish Pediatric Group for Treating Leukemias and Lymphomas (PPGLBC). In 2 patients the transplantations were carried out twice. The age of children at the moment of the transplantation ranged from 2.8 to 17.3 years (median 10.0), with higher representation of boys than girls. Twenty eight of the procedures were carried out in children with the diagnosis of B-cell non Hodgkins lymphoma (B-NHL), eight--in children with non B-cell non Hodgkins lymphoma (NB-NHL) and thirteen--in patients with anaplastic large cell lymphoma (LCAL). 16 procedures were performed in children who at the moment of transplantation were in their first complete remission (CR), another 16 were carried out while in their 2nd and 3rd CRs, and 17 transplants were performed at partial remission (PR). In addition, two children received transplants in the phase of the disease relapse. In most cases (44) the BEAM protocol was applied as megachemotherapy. In 49 procedures peripheral blood was the source of stem-cells, in one--bone marrow, in one--bone marrow + peripheral blood. The number of CD34/kg cells transplanted ranged from 1.2 x 10(6) to 8.0 x 10(6) (median 4.2 x 10(6)). Hematologic reconstitution occurred in all but one patient who died on the 10th day from HSCT. 42 out of the 49 children (87%) survived with the observation time ranging from 1 to 94 months (median 47 months). During the observation time, 34 of children were in CR. In 15, disease relapses or progression were noted within the time ranging from 3 to 22 months from HSCT (median 6 months). Seven children died (14%) including 5 due to relapse. Expected overall survival (OS) at 5 years from transplantation for the whole group of patients was 0.85 and varied only slightly for individual categories of NHL. The probability of 5-year disease-free survival (DFS) for the whole group was 0.67 and was the highest in B-NHL (0.84) and was much lower in LCAL and in NB-NHL, 0.5 and 0.47 respectively. Our results suggest that BEAM megachemotherapy with autologous transplantation in children with NHL is a safe procedure, which at the same time improves the results of standard treatment, especially in children with NHL primary resistant to chemotherapy.
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