Jornal de Prática Geral

Effects of Individual Dosed-Intravenous Iron Doses in Patients with Iron Deficiency: A Multicentre Medicine-Application Monitoring System

Abstract

Beat Schaub, Frédéric Von Orelli and Claude Rothen

Aim: Progress documentation of the intravenous substitution in women with symptomatic iron deficiency with and without anaemia: Changes in symptoms and ferritin and haemoglobin levels, adverse drug reactions.

Design: A multicentre observational study using two different preparations (iron sucrose versus ferric carboxymaltose).

Study centres: 27 medical practices in Switzerland.

Participants: 2288 patients gave individually-dosed intravenous iron doses, 82% of them of menstrual age.

Examined parameters: Change in symptoms and laboratory values 2-3 weeks following intravenous iron treatment and three months later.

Results: All participants completed the treatment. In 82% of the patients the initial ferritin level was <50 ng/ml and in 18%, it was between 51-75 ng/ml (average value 31 ng/ml). Anaemia was present in 13% of those affected. 65% of the participants felt symptom-free or significantly better, following treatment with an average ferritin level of 217 ng/ml, 20% benefited slightly and 15% did not feel any effects. After a follow-up assessment of a part of the patients three months later, the success rate was practically unchanged, although the ferritin level in women of menstrual age had retreated to 142 ng/ml. The side effect rate was 2.1%.

Conclusion: Patients with symptoms, such as e.g. states of exhaustion, concentration disorders, depressive moods, insomnia, dizziness or headaches and a ferritin level below 75 ng/ml benefit the most from individually-dosed intravenous iron doses.