Phonophobia and brainstem excitability in migraine

Brainstem excitability is not influenced by blood lactate levels

Somatosensory & Motor Research ◽

10.3109/08990220.2013.769949 ◽

2013 ◽

Vol 30 (2) ◽

pp. 90-95 ◽

Cited By ~ 11

Author(s):

Marinella Coco ◽

Giovanna Alagona ◽

Valentina Perciavalle ◽

Giuseppe Rapisarda ◽

Erminio Costanzo ◽

...

Keyword(s):

Blood Lactate ◽

Lactate Levels ◽

Blood Lactate Levels ◽

Brainstem Excitability

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74. Brainstem excitability in Hemifacial Spasm and Post-Facial Palsy Synkinesias and effects of botulinum toxin

Clinical Neurophysiology ◽

10.1016/j.clinph.2017.09.081 ◽

2017 ◽

Vol 128 (12) ◽

pp. e433

Author(s):

M.P. Cabboi ◽

E.R. De Natale ◽

G. Devigili ◽

C. Lettieri ◽

G. Pilurzi ◽

...

Keyword(s):

Botulinum Toxin ◽

Hemifacial Spasm ◽

Facial Palsy ◽

Brainstem Excitability

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Differences between episodic and chronic tension-type headaches in nociceptive-specific trigeminal pathways

Cephalalgia ◽

10.1177/0333102412461889 ◽

2013 ◽

Vol 33 (5) ◽

pp. 330-339 ◽

Cited By ~ 8

Author(s):

Jong Hee Sohn ◽

Hui Chul Choi ◽

Chul Ho Kim

Keyword(s):

Area Under The Curve ◽

Blink Reflex ◽

Pivotal Role ◽

Late Response ◽

Healthy Controls ◽

Nociceptive Blink Reflex ◽

Lower Amplitude ◽

Tension Type Headaches ◽

Latency Duration ◽

Brainstem Excitability

Background The trigeminal nociceptive system plays a pivotal role in the pathophysiology of tension-type headaches (TTH). Objective This study investigated and compared nociceptive-specific trigeminal pathways in patients with episodic and chronic TTH (ETTH and CTTH, respectively) using the nociceptive blink reflex (nBR) and nociceptive trigeminocervical reflex (nTCR). Methods We recorded nBR and nTCR in patients with ETTH and CTTH, and healthy controls using concentric electrodes and subsequently compared the threshold (i.e. sensory, pain) and parameters of reflex (i.e. the R2 component of the nBR and the late responses of the nTCR). Results Women with ETTH ( n = 40) and CTTH ( n = 32) and age-matched controls ( n = 40) were recruited. CTTH patients displayed significantly lower amplitude and area under the curve (AUC) values of the R2 component for the nBR compared with those displayed by ETTH patients and controls ( p < 0.05). Moreover, the amplitude and AUC of the R2 component was negatively correlated with the frequency of headaches, whereas the latency of the R2 component for the nBR was positively correlated with the frequency and duration of headaches in the TTH groups ( p < 0.05). However, no significant differences in the late response parameters (i.e. latency, duration, amplitude, or AUC) were noted between the groups in terms of the nTCR. Conclusions R2 suppression associated with CTTH suggests decreased brainstem excitability. This may be the result of excessive descending inhibitory influences.

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Brainstem Excitability is Increased in Subjects with Palmomental Reflex

Journal of the Formosan Medical Association ◽

10.1016/s0929-6646(08)60016-9 ◽

2007 ◽

Vol 106 (8) ◽

pp. 601-607 ◽

Cited By ~ 6

Author(s):

Kwong-Kum Liao ◽

Jen-Tse Chen ◽

Kuan-Lin Lai ◽

Chia-Yi Lin ◽

Chih-Yang Liu ◽

...

Keyword(s):

Brainstem Excitability

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How can neurophysiological studies help with movement disorders characterization in clinical practice? A review

Arquivos de Neuro-Psiquiatria ◽

10.1590/0004-282x20190195 ◽

2020 ◽

Vol 78 (8) ◽

pp. 512-522

Author(s):

Talyta GRIPPE ◽

Natalia Spinola Costa da CUNHA ◽

Pedro Renato de Paula BRANDÃO ◽

Rubens Nelson Morato FERNANDEZ ◽

Francisco Eduardo Costa CARDOSO

Keyword(s):

Clinical Practice ◽

Movement Disorders ◽

Atypical Parkinsonism ◽

Review Of The Literature ◽

Indirect Measures ◽

Neurophysiological Studies ◽

Probable Site ◽

Practice Methods ◽

System Objective ◽

Brainstem Excitability

ABSTRACT Background: Neurophysiological studies are ancillary tools to better understand the features and nature of movement disorders. Electromyography (EMG), together with electroencephalography (EEG) and accelerometer, can be used to evaluate a hypo and hyperkinetic spectrum of movements. Specific techniques can be applied to better characterize the phenomenology, help distinguish functional from organic origin and assess the most probable site of the movement generator in the nervous system. Objective: We intend to provide an update for clinicians on helpful neurophysiological tools to assess movement disorders in clinical practice. Methods: Non-systematic review of the literature published up to June 2019. Results: A diversity of protocols was found and described. These include EMG analyses to define dystonia, myoclonus, myokymia, myorhythmia, and painful legs moving toes pattern; EMG in combination with accelerometer to study tremor; and EEG-EMG to study myoclonus. Also, indirect measures of cortical and brainstem excitability help to describe and diagnose abnormal physiology in Parkinson's disease, atypical parkinsonism, dystonia, and myoclonus. Conclusion: These studies can be helpful for the diagnosis and are usually underutilized in neurological practice.

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