CNS-side effects induced by Ifosfamide-Mesna in children with osteosarcomas

The authors have had the opportunity to see two cases of CNS side effects of Ifosfamide-Mesna association in children. Data in the medical literature about this subject remains poor. Only a few observations are available. In the referred cases, CNS side effects (lethargy, apathy and mutism) appeared a few hours after the second day of treatment and were spontaneously reversible in a few days. After reviewing possible mechanisms of this toxicity the authors pointed out the necessity to keep this type of side effects of Ifosfamide-Mesna association in mind, and to avoid it in susceptible patients.