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fNIRS for CI mapping in patients with malformations

Application of fNIRS for cochlear implant mapping in deaf patients with inner ear and/or internal auditory canal malformations

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs052200030
Enrollment
40
Registered
2020-06-25
Start date
2020-07-30
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

bilateral severe sensorineural hearing loss bilateral sensorineural hearing loss, cochlear implant, bilateral severe hearing loss

Interventions

to determine parameters of electrical stimuli by the cochlear implant on the basis of results of fNIRS measurements in cochlear implant users with inner ear malformations
D003054
cochlear implant, mapping, inner ear malformation, fNIRS

Sponsors

Yamazaki Hiroshi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) patients having inner ear or internal auditory canal (IAC) malformations and diagnosed as severe or profound hearing loss (2) age at testing ranges from 10 months old to 18 years old (3) patients who underwent cochlear implantation (4) patients who have signed to a written consent-form

Exclusion criteria

Exclusion criteria: (1) patients who can not keep standing still for 3 minutes (2) patients who have severe dermatitis or infection on the head skin (3) patients who the principal investigator or research collaborators have decided to be inappropriate as the participants

Design outcomes

Primary

MeasureTime frame
Percentages of electrodes which successfully detect cochlear implant-induced neural responses

Secondary

MeasureTime frame
(1) duration of EABR and fNIRS measurements (2) thresholds determined by EABR, fNIRS, and behavioral measurements (3) adverse effects, diseases, and equipment troubles

Contacts

Public ContactUtako Shirono

Kobe City Medical Center General Hospital

ushirono@kcho.jp+81-78-302-4321

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026