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SINGLE DOSE FILGASTRIM IN CYTOTOXIC-INDUCED NEUTROPAENIA IN CHILDREN
Abstract
Objective: To document the impact of fixed dose weight adjusted filgastrim (G-CSF) in cytotoxic-induced neutropaenia.
Design: A descriptive cross-sectional study.
Setting: Paediatric Oncology Unit at Kenyatta National Hospital, Nairobi, Kenya.
Subjects: All paediatric oncology patients who had developed cytotoxic-induced neutropaenia. Main outcome measures: The following were documented for every tissue proven case of malignancy; age, sex, type of malignancy, treatment regimen and schedule, initial blood count at the time of neutropaenia; subsequent blood counts daily for five days from day one of single dose filgastrim, and the calculated neutrophil incremental count.
Results: Initially eight patients with solid tumours previously treated with filgastrim revealed that cytotoxic induced neutropaenia could be ameliorated by a single dose of filgastrim. Subsequently, the study listed thirty patients. This cohort consisted of; 37% rhabdomyosarcoma, 30% Burkitts, 27% acute lymphoblastic leukaemia and 6% HodgkinÕs lymphoma. Increased neutrophil count after 48 hours was documented in
26 (87%) patients, with absolute neutrophil counts range of 0.5 to 31.5 x 109/L. This response was significantly influenced by gender (p>0.000l), malignancy type and chemotherapy regimen (p>0.00l).
Conclusion: The study shows that chemotherapy induced neutropaenia can be alleviated by a single dose of filgastrim without adverse effects on lymphoblastic leukaemia. This study suggests that a single dose of filgastrim should be first tried in cytotoxic induced neutropaenia in the paediatric age group.
Design: A descriptive cross-sectional study.
Setting: Paediatric Oncology Unit at Kenyatta National Hospital, Nairobi, Kenya.
Subjects: All paediatric oncology patients who had developed cytotoxic-induced neutropaenia. Main outcome measures: The following were documented for every tissue proven case of malignancy; age, sex, type of malignancy, treatment regimen and schedule, initial blood count at the time of neutropaenia; subsequent blood counts daily for five days from day one of single dose filgastrim, and the calculated neutrophil incremental count.
Results: Initially eight patients with solid tumours previously treated with filgastrim revealed that cytotoxic induced neutropaenia could be ameliorated by a single dose of filgastrim. Subsequently, the study listed thirty patients. This cohort consisted of; 37% rhabdomyosarcoma, 30% Burkitts, 27% acute lymphoblastic leukaemia and 6% HodgkinÕs lymphoma. Increased neutrophil count after 48 hours was documented in
26 (87%) patients, with absolute neutrophil counts range of 0.5 to 31.5 x 109/L. This response was significantly influenced by gender (p>0.000l), malignancy type and chemotherapy regimen (p>0.00l).
Conclusion: The study shows that chemotherapy induced neutropaenia can be alleviated by a single dose of filgastrim without adverse effects on lymphoblastic leukaemia. This study suggests that a single dose of filgastrim should be first tried in cytotoxic induced neutropaenia in the paediatric age group.
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