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Critical Flicker-Fusion Frequency as a Method for Quantification of Neurotoxic Side Effects of Anticonvulsive Drugs

Critical Flicker-Fusion Frequency as a Method for Quantification of Neurotoxic Side Effects of Anticonvulsive Drugs

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00024426
Enrollment
56
Registered
2021-02-05
Start date
2021-02-15
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

G40.2 G40.3

Interventions

Group 1: The flicker-fusion frequency will be used twice in patients with epilepsy to objectify neurotoxic side effects of anticonvulsants.

Sponsors

Epilepsiezentrum Kork
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: • Age between 18 and 70 years in the inpatient treatment of our epilepsy center • Diagnosis of epilepsy • Drug treatment with anticonvulsants

Exclusion criteria

Exclusion criteria: • Incapable of consent or cooperation • Epilepsy with photosensitivity • Ophthalmic diseases • Participants with a medical or psychiatric illness that the investigator believes could compromise or endanger their own health or the patient's ability to participate in the study; for example, patients with status epilepticus, acute psychosis, acute shortness of breath or participants with significant cognitive disorders etc. • Parkinson's disease

Design outcomes

Primary

MeasureTime frame
Critical Flicker Fusion Frequency (Hz) is frequency at which a light stimulus no longer perceived as flickering, but as continuous, is referred to as flicker fusion frequency (also critical flicker fusion frequency)

Secondary

MeasureTime frame
Fusion frequency (Hz) (frequency of a light stimulus at which a continuous light is perceived as flicker.)

Countries

Germany

Contacts

Public ContactTassanai Intravooth

Epilepsiezentrum Kork

tintravooth@epilepsiezentrum.de00497851842272

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026