Intermittent-low dose G-CSF treatment in a patient with chronic neutropenia

Chronic neutropenia in childhood has many definable causes and thus a clear cause cannot be identified in a large group of patients. Since the committed stem cell is involved in this disorder, growth factors such as granulocyte colony-stimulating factor (G-CSF) may play an important role in the treatment of severely affected children. Because of the side effects and cost, the use of G-CSF should be restricted to a minimum dose. Here we report a child with chronic neutropenia in whom intermittent-low doses of G-CSF were successfully used over a long period.