Muscle paralysis produced by botulinum toxin type A injection in treated torticollis patients compared with toxin naive individuals.
Identifieur interne : 000422 ( Ncbi/Curation ); précédent : 000421; suivant : 000423Muscle paralysis produced by botulinum toxin type A injection in treated torticollis patients compared with toxin naive individuals.
Auteurs : R R Sloop [États-Unis] ; D. Cole ; M C PatelSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2001.
English descriptors
- KwdEn :
- Adult, Aged, Botulinum Toxins, Type A (administration & dosage), Botulinum Toxins, Type A (adverse effects), Dose-Response Relationship, Drug, Female, Foot, Humans, Male, Middle Aged, Muscle, Skeletal (physiopathology), Neuromuscular Agents (administration & dosage), Neuromuscular Agents (adverse effects), Paralysis (chemically induced), Paralysis (diagnosis), Paralysis (physiopathology), Severity of Illness Index, Torticollis (drug therapy).
- MESH :
- chemical , administration & dosage : Botulinum Toxins, Type A, Neuromuscular Agents.
- chemical , adverse effects : Botulinum Toxins, Type A, Neuromuscular Agents.
- chemically induced : Paralysis.
- diagnosis : Paralysis.
- drug therapy : Torticollis.
- physiopathology : Muscle, Skeletal, Paralysis.
- Adult, Aged, Dose-Response Relationship, Drug, Female, Foot, Humans, Male, Middle Aged, Severity of Illness Index.
Abstract
We sought to determine whether the response to varying doses of botulinum toxin type A (BTX-A) injected in BTX-A-treated torticollis patients differed from the same injections given in toxin-naive individuals. We have developed a technique to objectively measure muscle weakness resulting from BTX injections in humans and have validated the technique in those not previously treated with BTX. We now examine BTX-A-treated torticollis patients to see if their response to BTX-A injection is similar to that of toxin-naive individuals. We injected 11 torticollis patients who had been receiving BTX-A injections with a standard 5-mouse unit (mu) dose into one extensor digitorum brevis (EDB) muscle and a varying dose into the other EDB, measuring muscle paralysis 2 weeks after the injection. Nine of the 11 patients were clinical and electrophysiologic responders. Two patients were non-responders. In the 9 responding patients the dose response curve to increasing doses of BTX-A was very similar to that seen in toxin-naive individuals. The mean muscle paralysis from the standard 5 mu dose was also similar to that previously reported in toxin-naive individuals. Torticollis patients who continue to respond clinically to BTX-A injections demonstrate essentially the same degree of muscle paralysis from the EDB injections as do subjects who have never been exposed to BTX-A.
PubMed: 11215566
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pubmed:11215566Le document en format XML
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<affiliation wicri:level="2"><nlm:affiliation>Department of Neurology, Loma Linda University School of Medicine, California, USA.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Neurology, Loma Linda University School of Medicine, California</wicri:regionArea>
<placeName><region type="state">Californie</region>
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<author><name sortKey="Cole, D" sort="Cole, D" uniqKey="Cole D" first="D" last="Cole">D. Cole</name>
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<series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title>
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<term>Female</term>
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<front><div type="abstract" xml:lang="en">We sought to determine whether the response to varying doses of botulinum toxin type A (BTX-A) injected in BTX-A-treated torticollis patients differed from the same injections given in toxin-naive individuals. We have developed a technique to objectively measure muscle weakness resulting from BTX injections in humans and have validated the technique in those not previously treated with BTX. We now examine BTX-A-treated torticollis patients to see if their response to BTX-A injection is similar to that of toxin-naive individuals. We injected 11 torticollis patients who had been receiving BTX-A injections with a standard 5-mouse unit (mu) dose into one extensor digitorum brevis (EDB) muscle and a varying dose into the other EDB, measuring muscle paralysis 2 weeks after the injection. Nine of the 11 patients were clinical and electrophysiologic responders. Two patients were non-responders. In the 9 responding patients the dose response curve to increasing doses of BTX-A was very similar to that seen in toxin-naive individuals. The mean muscle paralysis from the standard 5 mu dose was also similar to that previously reported in toxin-naive individuals. Torticollis patients who continue to respond clinically to BTX-A injections demonstrate essentially the same degree of muscle paralysis from the EDB injections as do subjects who have never been exposed to BTX-A.</div>
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