The role of iron supplementation in treating the anaemia of systemic-o
nset juvenile chronic arthritis is not clear. Eight affected children
with severe persistent anaemia unresponsive to oral iron therapy were
treated with intravenous iron saccharate. From a median post-oral-iron
value of 8.0 g/dL (range 6.5-9.5), haemoglobin rose to 11.0 g/dL (10.
1-12.1) (p=0.01). The concentration of serum transferrin receptor, an
indicator of iron deficiency, before intravenous therapy correlated wi
th the increase in haemoglobin (r=0.88, p<0.01). Intravenous iron sacc
harate could be an effective treatment for chronic anaemia in this con
dition, especially with iron deficiency not responsive to oral iron.