Trigeminal afferent input alters the excitability of facial motoneurons in hemifacial spasm.

@article{Ogawara2004TrigeminalAI,
  title={Trigeminal afferent input alters the excitability of facial motoneurons in hemifacial spasm.},
  author={Kazue Ogawara and Satoshi Kuwabara and Ikuo Kamitsukasa and Keiko Mizobuchi and Sonoko Misawa and Takamichi Hattori},
  journal={Neurology},
  year={2004},
  volume={62 10},
  pages={1749-52}
}
OBJECTIVE To investigate whether skin or muscle afferent input via the trigeminal nerve alters the excitability of facial motoneurons in hemifacial spasm (HFS). METHODS Botulinum toxin type A (BTX) was injected only to the orbicularis oculi (O. oculi) muscle of 21 patients with idiopathic HFS, and the excitability of the orbicularis oris (O. oris) motoneurons was monitored. The synkinetic response (SR) of the blink reflex and abnormal muscle response (AMR) were recorded from the O. oris… CONTINUE READING
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