Skip to main content
Log in

The clinical phenomenology and associations of trick maneuvers in cervical dystonia

  • Neurology and Preclinical Neurological Studies - Original Article
  • Published:
Journal of Neural Transmission Aims and scope Submit manuscript

Abstract

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.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4

Similar content being viewed by others

References

Download references

Acknowledgments

The authors are grateful to the patients and their families for their support of this research. This work was supported by Ministry of Health of the Czech Republic/Ministry of Health’s Departmental Research and Development Program III (2010–2015) NT/13437 and by the “CEITEC—Central European Institute of Technology” Project (CZ.1.05/1.1.00/02.0068) from the European Regional Development Fund.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Pavel Filip.

Ethics declarations

Conflict of interest

There are no potential conflict of interests regarding this paper and no financial or personal relationships that might bias this work.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Filip, P., Šumec, R., Baláž, M. et al. The clinical phenomenology and associations of trick maneuvers in cervical dystonia. J Neural Transm 123, 269–275 (2016). https://doi.org/10.1007/s00702-015-1488-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00702-015-1488-z

Keywords

Navigation