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Comparison of acoustically and electrically evoked stapedius reflex thresholds

Comparison of acoustically and electrically evoked stapedius reflex thresholds - eSRT

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00038576
Enrollment
80
Registered
2025-12-12
Start date
2026-01-15
Completion date
Unknown
Last updated
2026-03-02

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

Conditions

Z96.2

Interventions

Group 1: The study measurements are performed in a single appointment. All study participants undergo otoscopy by an ENT specialist from the study team, and ear canal cleaning is performed if necessar

Sponsors

Martin Luther Universität Halle-Wittenberg
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Control group: • Age = 18 years • Bilateral normal hearing according to DIN EN ISO 8253-1 and WHO: normal health without ear diseases and without inherited hearing loss, who were not exposed to excessive noise or ototoxic substances, and whose pure-tone hearing threshold at air conduction 0.5, 1, 2, 4, 8 kHz was not worse than 25 dB Experimental groups: • Age = 18 years • Unilaterally or bilaterally fitted cochlear implant recipients with a system from one of the manufacturers listed above • CI experience = 6 months

Exclusion criteria

Exclusion criteria: Control group: • Failure to meet at least one inclusion criterion • Inability to attend the study site • Inability to understand the study procedures • Pregnancy • Lack of capacity to consent or consent to the study • Implanted stimulators • Non-functional middle ear physiology Experimental groups: • Prelingually acquired deafness and post-language acquisition support • Failure to meet at least one inclusion criterion • Inability to attend the study site • Inability to understand the study procedures • Pregnancy • Lack of capacity to consent or consent to the study • Other implanted stimulators besides a cochlear implant • Non-functional middle ear physiology

Design outcomes

Primary

MeasureTime frame
Stapedius reflex threshold measured in free field

Secondary

MeasureTime frame
• Electrically evoked stapedius reflex thresholds for basal, medial, and apical electrode contacts • Neural response thresholds • Loudness function of the loudness scaling • Loudness values ??of the electrically evoked stapedius reflex thresholds

Countries

Germany

Contacts

Public ContactAnna Kopsch

Universitätsmedizin Halle/Saale

anna.kopsch@uk-halle.de+493455571073

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 14, 2026