Triamcinolone Levels in Cochlear Perilymph Lateral Canal and CSF

  • STATUS
    Recruiting
  • End date
    Mar 31, 2023
  • participants needed
    60
  • sponsor
    Medical University of Vienna
Updated on 26 January 2021

Summary

Patients undergoing surgery of a vestibular schwannoma will be included in the study. Patients will receive triamcinolone acetonide 24h before surgery. During translabyrinthine surgery cochlear perilymph, perilymph from the semicircular canal and cerebrospinal fluid will be taken and analyzed for triamcinolone content. In patients undergoing middle fossa or retrosigmoid resection only cerebrospinal fluid will be taken and analyzed for triamcinolone acetonide level.

Description

Patients between 18 and 90 years undergoing surgery of a vestibular schwannoma will be included in the study. Patients will be offered an application of triamcinolone acetonide intratympanically on the day before surgery.

During surgery samples will be taken to define how much triamcinolone acetonide enters into the perilymphatic fluid, the perilymph of the semicircular canals and CSF.

Patients undergoing translabyrinthine surgery will undergoing labyrinthectomy during which samples of the semicircular canal can be taken. During translabyrinthine surgery nerve monitoring will be carried out using an intracochlear electrode. Before inserting the electrode perilymph of the cochlea can be taken. Immediately after opening the dura cerebrospinal fluid will be taken. Patients undergoing middle fossa or retrosigmoid resection of the vestibular schwannoma will not undergo sampling of the perilymph. In these patients cerebrospinal fluid will be taken to determine triamcinolone acetonide levels.

Details
Condition Acoustic Neuroma, vestibular schwannoma
Treatment Triamcinolone Acetonide 40mg/mL
Clinical Study IdentifierNCT04658836
SponsorMedical University of Vienna
Last Modified on26 January 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Patients between 18 and 90 years undergoing a surgery of the cerebellopontine angle due to vestibular schwannoma and who are willing to participate in the study

Exclusion Criteria

Patients younger than 18 years Patients who receive cortison regularly or receive cortison i.v. or p.o. preoperatively Patients with contraindications against the administration of VolonA
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