Minimally-invasive ictal EEG source localisation using sphenoidal electrodes

Minimally-invasive ictal EEG source localisation using sphenoidal electrodes - miESL-Sp

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00028862

Enrollment

Registered

2022-05-27

Start date

2022-10-17

Completion date

Unknown

Last updated

2025-12-08

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

Conditions

G40

Interventions

Group 1: Retrospective comparison of ictal EEG source localisation with vs. without information from sphenoidal electrodes

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Pharmacoresistant focal epilepsy, long-term video-EEG recorded with at least 19 surface electrodes (10-20-System) and sphenoidal electrodes, recording of at least 3 clinically apparent epileptic seizures with rhythmic EEG pattern, presurgical high-resolution structural MRI, resective epilepsy surgery; freedom of disabling seizures for at least 12 months after surgery (ILAE outcome classes 1-2)

Exclusion criteria

Exclusion criteria: Pre-existent skull defect

Design outcomes

Primary

Measure	Time frame
Diagnostic sensitivity of ESL with vs. without sphenoidal electrodes	—

Secondary

Measure	Time frame
Precision of visual EEG inspection vs. ESL (both including sphenoidal electrodes)	—

Countries

Germany

Contacts

Public ContactBernd Vorderwülbecke

Charité Universitätsmedizin Berlin, Klinik für Neurologie

bernd.vorderwuelbecke@charite.de+49 (0)30 450 560 038

Outcome results

None listed

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