Prepulse inhibition and recovery of trigemino-cervical reflex in patients with cervical dystonia

We aimed to analyze the prepulse inhibition (PPI) and recovery rate (R) of the trigeminocervical reflex (TCR) in patients with cervical dystonia (CD). We enrolled 15 patients with CD and 16 healthy subjects. TCR was recorded over splenius capitis after infraorbital nerve stimulation. For TCR-PPI, we...

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Bibliographic Details
Published in:Neurophysiologie clinique 2020-10, Vol.50 (5), p.361-366
Main Authors: Asan, Furkan, Gündüz, Ayşegül, E. Kızıltan, Meral
Format: Article
Language:English
Subjects:
Cervical dystonia
Dystonia
Interstimulus interval
Muscles
Percentage
Posture
Prepulse inhibition
Recovery
Trigeminocervical reflex
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Summary:We aimed to analyze the prepulse inhibition (PPI) and recovery rate (R) of the trigeminocervical reflex (TCR) in patients with cervical dystonia (CD). We enrolled 15 patients with CD and 16 healthy subjects. TCR was recorded over splenius capitis after infraorbital nerve stimulation. For TCR-PPI, we applied a prepulse stimulus to the left second finger 100 ms prior to the test stimulus and the percentage of change of response to test stimulus was calculated. For TCR-R, we applied paired infraorbital stimuli at interstimulus interval (ISIs) of 300 ms and the percentage of change of the second compared to the first response was calculated. TCR-PPI and TCR-R values were higher (less inhibition and greater recovery) on both sides in the patient group compared to healthy subjects. There was high correlation between TCR-PPI and TCR-R on both sides in patients with dystonia (p 
ISSN:0987-7053
1769-7131
DOI:10.1016/j.neucli.2020.09.003