Effects of physiological glucose on the pattern-VEP of healthy volunteers

Sannita, Walter G.; Fatone, Mara; Garbarino, Sergio; Giglioli, D.; Massimilla, Simona; Riela, S.

doi:10.1016/0031-9384(95)00139-a

Cited by 7 publications

(4 citation statements)

References 19 publications

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“…The electrodes were placed on to the scalp according to [10][11][12][13][14][15][16][17][18][19][20] System. Both eyes were tested separately and the opposite eye was occluded during the test.…”

Section: Seizures Dietary Compliancementioning

confidence: 99%

Evaluation of central nervous system in patients with glycogen storage disease type 1a

et al. 2016

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We aimed to evaluate structure and functions of central nervous system (CNS) in children with glycogen storage disease (GSD) type 1a.Neurological examination, psychometric tests, electroencephalography (EEG), magnetic resonance imaging (MRI), visual evoked potentials (VEP) and brainstem auditory evoked potentials (BAEP) were performed. The results were compared between patients with good and poor metabolic control and healthy children.Twenty-three patients with GSD type 1a were studied. Twelve patients were in poor metabolic control group and 11 patients in good metabolic control group. Five patients had intellectual disability, 10 had EEG abnormalities, seven had abnormal VEP and two had abnormal BAEP results. MRI was abnormal in five patients. There was significant correlation between the number of hypoglycemic attacks and MRI abnormalities.Central nervous system may be affected in GSD type 1a even in patients with normal neurologic examination. Accumulation of abnormal results in patients with poor metabolic control supports the importance of metabolic control in GSD type 1a.

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Section: Seizures Dietary Compliancementioning

confidence: 99%

Evaluation of central nervous system in patients with glycogen storage disease type 1a

et al. 2016

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“…Also, little effect on P100 latency is noticed in patients having multiple sclerosis. Sannita et al, 1995 evaluated the correlation between amplitude and latencies of the patternreversal VEP and serum glucose level in healthy volunteers. Pattern VEP and serum glucose levels were obtained at 2-hour intervals during an 8-hour experimental session.…”

Section: Body Temperaturementioning

confidence: 99%

Visual and Brainstem Auditory Evoked Potentials in Neurology

Zaher¹

2012

EMG Methods for Evaluating Muscle and Nerve Function

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“…[5] This is as an important limiting factor in its widespread clinical application. Factors such as frequency[6] and luminance[7] of the stimulus, age[8] gender,[9] visual acuity,[10] eye position,[1112] retinal luminance,[13] serum glucose level,[14] drugs, auditory stimulation,[15] alertness of the subject[16] and duration of recording[17] are known to affect the FVEP. [18] Coburn et al ., had concluded recording FVEP with closed eyes yielded most reliable latencies and amplitudes.…”

Section: Introductionmentioning

confidence: 99%

Low luminance/eyes closed and monochromatic stimulations reduce variability of flash visual evoked potential latency

Subramanian

Gaur

Narayan

2013

Ann Indian Acad Neurol

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Context:Visual evoked potentials are useful in investigating the physiology and pathophysiology of the human visual system. Flash visual evoked potential (FVEP), though technically easier, has less clinical utility because it shows great variations in both latency and amplitude for normal subjects.Aim:To study the effect of eye closure, low luminance, and monochromatic stimulation on the variability of FVEPs.Subjects and Methods:Subjects in self-reported good health in the age group of 18-30 years were divided into three groups. All participants underwent FVEP recording with eyes open and with white light at 0.6 J luminance (standard technique). Next recording was done in group 1 with closed eyes, group 2 with 1.2 and 20 J luminance, and group 3 with red and blue lights, while keeping all the other parameters constant. Two trials were given for each eye, for each technique. The same procedure was repeated at the same clock time on the following day.Statistical Analysis:Variation in FVEP latencies between the individuals (interindividual variability) and the variations within the same individual for four trials (intraindividual variability) were assessed using coefficient of variance (COV). The technique with lower COV was considered the better method.Results:Recording done with closed eyes, 0.6 J luminance, and monochromatic light (blue > red) showed lower interindividual and intraindividual variability in P2 and N2 as compared to standard techniques.Conclusions:Low luminance flash stimulations and monochromatic light will reduce FVEP latency variability and may be clinically useful modifications of FVEP recording technique.

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Effects of physiological glucose on the pattern-VEP of healthy volunteers

Cited by 7 publications

References 19 publications

Evaluation of central nervous system in patients with glycogen storage disease type 1a

Evaluation of central nervous system in patients with glycogen storage disease type 1a

Visual and Brainstem Auditory Evoked Potentials in Neurology

Low luminance/eyes closed and monochromatic stimulations reduce variability of flash visual evoked potential latency

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