Abnormal trigeminocervical response in patients with spinal and bulbar muscular atrophy
- Author:
Ming Lu
;
Ying-Sheng Xu
;
Ju-Yang Zheng
;
Shuo Zhang
;
De-Xuan Kang
;
Dong-Sheng Fan
- Publication Type:Journal Article
- From:Neurology Asia
2012;17(3):209-212
- CountryMalaysia
- Language:English
-
Abstract:
Objective: To investigate the value of the trigeminocervical response (TCR) for revealing bulbar
involvement in patients with spinal and bulbar muscular atrophy (SBMA). Methods: Thirty patients
with SBMA and 30 healthy male controls were included in this study. In all of the normal controls,
stimulation of the infraorbital nerve on one side produced bilateral short latency waves consisting
of a positive/negative wave, p19/n31, the mean latency of which was measured. The mean square
root of the ratio between the amplitude of p19/n31 and the mean rectifi ed surface electromyography
(EMG) activity preceding the stimulus, the A value, was estimated. The parameters of the TCR
were compared between the two groups. Results: Among the patients with SBMA, 21 (70.0%) had
delayed latencies of p19/n31 (P < 0.01) and all (100%) had reduced A values (P < 0.01) relative to
the normal controls.
Conclusions: All parameters of the TCR were signifi cantly different between the patients with SBMA
and the normal controls. T
- Full text:P020150710488772686033.pdf
