[Dose and efficacy of botulinum toxin in pediatric patients with spasticity].

[AIM] To evaluate the effectiveness of botulinum toxin in the treatment of upper and lower limb spasticity in pediatric patients in a real clinical setting.

[PATIENTS AND METHODS] A retrospective study was conducted based on information from clinical records of 79 pediatric patients with spasticity in different clinical forms and severity treated with botulinum toxin type A. The improvement of rigidity and mobility was estimated by the attending physician through physical examination, evaluating the gait, rating on the Ashworth scale and measurement of joint mobility angles using a goniometer. The number of injections, the interval between them, the site of application and the dose were recorded, considering the reduction of at least one point on the Ashworth scale or an increase in the degrees of joint mobility as treatment response.

[RESULTS] Patients received injections in a mean of 10 ± 7 muscles at intervals of 4 to 50 weeks (average: 13 ± 9 weeks). A 90% also received rehabilitation. The knee, ankle and wrist showed presented a higher percentage of improvement. An improvement in the degrees of movement was found in 24% of patients.

[CONCLUSION] The application of botulinum toxin type A was effective for the treatment of spasticity in the pediatric population.