Effect of Blue Light on Vagus Nerve Stimulation in Patients With Refractory Epilepsy
Cliniques universitaires Saint-Luc- Université Catholique de Louvain
34 participants
Jul 1, 2023
INTERVENTIONAL
Conditions
Summary
Vagus nerve stimulation (VNS) is an adjunctive treatment for refractory epilepsy. Although widely used, there is still a substantial number of patients with insufficient response. Light, and particularly blue light, can stimulate alertness, attention and cognition through modulation of anatomical targets which are common to the vagal afferent network. This project aims at understanding how exposure to blue enriched light may influence VNS effects in patients with refractory epilepsy by exploring the modulation of a series of biomarkers of VNS action. This could possibly lead to new therapeutic strategies to increase efficacy of VNS.
Eligibility
Inclusion Criteria3
- Patients:
- VNS implanted since at least 3 months age \>18-60 years; IQ \>55 on Wechsler scale (normal status or mild cognitive impairment)
- healthy participants aged between 18 and 35 years without any medical history (neurological / psychiatric disease)
Exclusion Criteria4
- Patients:
- other medical implanted devices than VNS, ocular diseases
- Helthy participants:
- medical implanted devices, cerebral trauma, ocular disease
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Interventions
Recording of the electrical activity of the brain, of the heart. Pupil size will be analyzed. The effect of blue light administration will be assessed on those parameters.
Transcutaneous vagus nerve stimulation will be performed in helathy subjects, as well as the recording of the electrical activity of the brain, and of the heart. Pupil size will be analyzed. The effect of blue light administration will be assessed on those parameters.
Locations(1)
View Full Details on ClinicalTrials.gov
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NCT06304389