Pediatric Neurology Service, University Hospital La Paz, Paseo de la Castellana 261, 28046 Madrid, Spain.
Eur J Paediatr Neurol. 2009 Nov;13(6):511-5. doi: 10.1016/j.ejpn.2008.10.006. Epub 2008 Nov 25.
Botulinum toxin type A (BoNT-A) has been used in many indications and is licensed for the treatment of spasticity in children older than 2 years. However, there are few reports of BoNT-A treatment in patients younger than 2 years of age.
To review retrospectively the safety data from all infants treated with botulinum toxin type A (BoNT-A) before 2 years of age in a paediatric neurology unit.
There were 74 infants: 28 received the first dose before 1 year of age, and 46 between the ages of 1 and 2 years.
In the first year of life, the most frequent indication was obstetric brachial palsy (OBP) (71.4% of cases) and in the second year, cerebral palsy (CP) (73.9%). Both Botox and Dysport, the two commercially-available BoNT-A products in Spain, were used. The average starting dose by session was 6.55 U/kg body weight Botox in infants in their first year of life, and 8.4 U/kg body weight Botox and 21.1 U/kg body weight Dysport in the second year of life. Only 3.6% of cases treated in the first year and 6.5% of those treated in the second experienced adverse events (AEs), which consisted of mild weakness or tiredness lasting 1-4 days.
BoNT-A has a good safety profile in infants younger than 2 years old. AEs are similar to those found in older children.
A型肉毒毒素(BoNT-A)已被用于多种适应症,且被批准用于治疗 2 岁以上儿童的痉挛。然而,在 2 岁以下的患者中使用 BoNT-A 治疗的报道较少。
回顾性审查在小儿神经病学单元接受 BoNT-A 治疗的所有 2 岁以下婴儿的安全性数据。
共有 74 名婴儿:28 名在 1 岁之前接受首剂治疗,46 名在 1 至 2 岁之间接受治疗。
在生命的第一年,最常见的指征是产伤性臂丛神经麻痹(OBP)(71.4%的病例),第二年是脑瘫(CP)(73.9%)。两种市售的 BoNT-A 产品 Botox 和 Dysport 都有使用。首剂治疗时,1 岁以下婴儿每次治疗的平均起始剂量为 6.55 U/kg 体重的 Botox,2 岁以下婴儿每次治疗的平均起始剂量为 8.4 U/kg 体重的 Botox 和 21.1 U/kg 体重的 Dysport。首年治疗的 3.6%和次年治疗的 6.5%的病例出现不良反应(AE),包括持续 1-4 天的轻度无力或疲劳。
BoNT-A 在 2 岁以下婴儿中具有良好的安全性。不良反应与年龄较大的儿童相似。