The clinical phenomenology and associations of trick maneuvers in cervical dystonia
Jazyk angličtina Země Rakousko Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
26645376
DOI
10.1007/s00702-015-1488-z
PII: 10.1007/s00702-015-1488-z
Knihovny.cz E-zdroje
- Klíčová slova
- Botulinum toxin, Cervical dystonia, Sensory trick, Treatment effectiveness,
- MeSH
- dospělí MeSH
- fyzikální stimulace * MeSH
- hmat * MeSH
- lidé středního věku MeSH
- lidé MeSH
- průzkumy a dotazníky MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- tortikolis * MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Sensory trick is an unusual clinical feature in cervical dystonia that attenuates disease symptoms by slight touch to a specific area of the face or head. Using a semi-quantitative questionnaire-based study of 197 patients with idiopathic cervical dystonia, we sought to determine probable pathophysiologic correlates, with the wider aim of examining its eventual clinical significance. The typical sensory trick, i.e., light touch, not necessitating the use of force leading to simple overpowering of dystonic activity, was present in 83 (42.1 %) patients. The vast majority of the patients required a specific sequence of sensorimotor inputs, including touch sensation on the face or different areas of the head, and also sensory and motor input of the hand itself. Deviations often led to a significant decrease in effectiveness and lack of expected benefit. Moreover, patients able to perform the maneuver reported compellingly higher subjective effect of botulinum toxin treatment (median 7 vs. 5 on a scale of 0-10; p < 0.0001) and lower depression score (median 10 vs. 14 on the Montgomery Åsberg Depression Rating scale; p < 0.001). Overall, the results point to marked disruption of sensorimotor networks in cervical dystonia. The mechanism of the sensory trick action may be associated with balancing the abnormal activation patterns by specific sensorimotor inputs. Its presence may be considered a positive predictive factor for responsiveness to botulinum toxin treatment.
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