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Botulinum toxin type A neuromuscular blockage in the treatment of equinus foot deformity in cerebral palsy: a multicenter, open-label clinical trial.

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Title: Botulinum toxin type A neuromuscular blockage in the treatment of equinus foot deformity in cerebral palsy: a multicenter, open-label clinical trial.
Authors: Koman LA (AUTHOR), Brashear A (AUTHOR), Rosenfeld S (AUTHOR), Chambers H (AUTHOR), Russman B (AUTHOR), Rang M (AUTHOR), Root L (AUTHOR), Ferrari E (AUTHOR), Prous JGD (AUTHOR), Smith BP (AUTHOR), Turkel C (AUTHOR), Walcott JM (AUTHOR), Molloy PT (AUTHOR)
Source: Pediatrics. Nov2001, Vol. 108 Issue 5, p1062-1071. 10p.
Abstract: BACKGROUND: Focal spasticity of the gastrocnemius-soleus muscles causes equinus gait in children with cerebral palsy (CP). Botulinum toxin type A (BTX-A), a neuromuscular blocking agent, reduces muscle tone/overactivity in dystonia, stroke, and CP. OBJECTIVE: A prospective, open-label, multicenter clinical trial evaluated the long-term safety and efficacy of repeated intramuscular injections of BTX-A on equinus gait in CP children. METHODS: Nine centers enrolled 207 children. BTX-A injections (4 U/Kg) were given approximately every 3 months (maximum dose 200 U per treatment). Outcome measures included a Physician Rating Scale of gait, ankle range of motion measurements, and the incidence and profile of adverse events. RESULTS: One hundred fifty-five (75%) of 207 children completed at least 1 year with a total of 302 patient years of BTX-A treatment. The mean duration of BTX-A exposure was 1.46 years per patient. Dynamic gait pattern on the Physician Rating Scale improved in 46% of patients (86/185) at first follow-up. The response was maintained in 41% to 58% of patients for 2 years. Both gait pattern and ankle position improved at every visit. The most common treatment-related adverse events included increased stumbling, leg cramps, leg weakness, and calf atrophy in 1% to 11% of patients. No treatment-related serious adverse events were reported. Only 6% (7/117) of patients with pre- and postantibody samples had both detectable antibodies and a subsequent treatment failure. CONCLUSION: BTX-A proved both safe and effective in the chronic management of focal muscle spasticity in children with equinus gait. [ABSTRACT FROM AUTHOR]
Copyright of Pediatrics is the property of American Academy of Pediatrics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Botulinum toxin type A neuromuscular blockage in the treatment of equinus foot deformity in cerebral palsy: a multicenter, open-label clinical trial.
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  Data: <searchLink fieldCode="JN" term="%22Pediatrics%22">Pediatrics</searchLink>. Nov2001, Vol. 108 Issue 5, p1062-1071. 10p.
– Name: Abstract
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  Group: Ab
  Data: BACKGROUND: Focal spasticity of the gastrocnemius-soleus muscles causes equinus gait in children with cerebral palsy (CP). Botulinum toxin type A (BTX-A), a neuromuscular blocking agent, reduces muscle tone/overactivity in dystonia, stroke, and CP. OBJECTIVE: A prospective, open-label, multicenter clinical trial evaluated the long-term safety and efficacy of repeated intramuscular injections of BTX-A on equinus gait in CP children. METHODS: Nine centers enrolled 207 children. BTX-A injections (4 U/Kg) were given approximately every 3 months (maximum dose 200 U per treatment). Outcome measures included a Physician Rating Scale of gait, ankle range of motion measurements, and the incidence and profile of adverse events. RESULTS: One hundred fifty-five (75%) of 207 children completed at least 1 year with a total of 302 patient years of BTX-A treatment. The mean duration of BTX-A exposure was 1.46 years per patient. Dynamic gait pattern on the Physician Rating Scale improved in 46% of patients (86/185) at first follow-up. The response was maintained in 41% to 58% of patients for 2 years. Both gait pattern and ankle position improved at every visit. The most common treatment-related adverse events included increased stumbling, leg cramps, leg weakness, and calf atrophy in 1% to 11% of patients. No treatment-related serious adverse events were reported. Only 6% (7/117) of patients with pre- and postantibody samples had both detectable antibodies and a subsequent treatment failure. CONCLUSION: BTX-A proved both safe and effective in the chronic management of focal muscle spasticity in children with equinus gait. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Pediatrics is the property of American Academy of Pediatrics and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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