Body produces white blood cells (leukocytes), which help fight bacterial infections, viruses and fungi. If your child has too few or too many white blood cells, in general, here's what it means: Low white blood cell count (leukopenia) means having too few leukocytes circulating in the blood. A long-term low white blood cell count increases the risk of infections and may be caused by a number of different diseases and conditions. High white blood cell count (leukocytosis) means having too many leukocytes circulating in the blood, usually from having an infection. A number of different diseases and conditions may cause a long-term high white blood cell count.
Previous studies have determined the short-term toxicity profile, laboratory changes, and clinical efficacy associated with hydroxyurea (HU) therapy in adults with sickle cell anemia. The safety and efficacy of this agent in pediatric patients with sickle cell anemia has not been determined. Children with sickle cell anemia, age 5 to 15 years, were eligible for this multicenter Phase I/II trial. HU was started at 15 mg/kg/d and escalated to 30 mg/kg/d unless the patient experienced laboratory toxicity. Patients were monitored by 2-week visits to assess compliance, toxicity, clinical adverse events, growth parameters, and laboratory efficacy associated with HU treatment. Eighty-four children were enrolled between December 1994 and March 1996. Sixty-eight children reached maximum tolerated dose (MTD) and 52 were treated at MTD for 1 year.
Treatments for white blood cell disorders depend on several factors, including: The type of disorder, The extent of the disorder, Your child’s overall health, Your child’s response to treatment, Your preferences Our treatments for your child’s white blood cell disorder may include: Chemotherapy, Radiation, Antibiotics, Colony-stimulating factors (these increase the body’s production of blood cells), Drugs to suppress the immune system Stem cell transplantation may be useful for some types of severe white blood cell disorders, particularly those caused by bone marrow problems
A community-based sample (Framingham Offspring Study) of 1393 men and 1401 women who were free of CVD at the onset of the study and who were between the ages of 30 and 59 years at baseline. Time-dependent multiple variable logistic regression methods were used.