Prevalence of occult cochlear basal turn patency
| Autor: | Patrick J. Antonelli, Reordan O. De Jesus, Varun V. Varadarajan, Orrin L. Dayton |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Fistula Otologic surgery medicine.medical_treatment Labyrinth Diseases education Perilymph Auditory canal Young Adult 03 medical and health sciences Basal (phylogenetics) 0302 clinical medicine Cochlear implant otorhinolaryngologic diseases medicine Humans Child Hearing Loss 030223 otorhinolaryngology Cochlea Aged Aged 80 and over business.industry Temporal Bone General Medicine Middle Aged Occult Surgery Otorhinolaryngology Child Preschool Ear Inner 030220 oncology & carcinogenesis Female sense organs Tomography X-Ray Computed business Complication |
| Zdroj: | Acta Oto-Laryngologica. 140:889-892 |
| ISSN: | 1651-2251 0001-6489 |
| DOI: | 10.1080/00016489.2020.1800815 |
| Popis: | Perilymph gusher (PLG) is a rare complication of otologic surgery attributed to a communication between the cochlea and the internal auditory canal (IAC). Subtle patency between the cochlear basal turn and IAC has recently been identified on computed tomography (CT) as a risk factor, specifically when the defect is0.75 mm.Investigate the prevalence of radiographic cochlear basal turn patency.Patients with CT of the temporal bones and inner ears interpreted as "normal" were included. An otologist and a radiologist independently reviewed CTs to measure radiographic dehiscence in an oblique plane along the interface of the cochlea and IAC. Known PLGs were excluded.Two hundred and ten ears were included (88 conductive or mixed hearing loss, 62 sensorineural hearing loss, 41 audiometrically normal ears). 71 ears (33.8%) were radiographically patent. Mean defect width was 0.41 mm (0.15-0.7 mm). Defect width was not associated with type of hearing loss, age, or gender. No defects were wider than 0.75 mm.Radiographic patency of the cochlear basal turn may be present in patients with hearing loss and normal hearing, but patency0.75 mm (i.e. risk for PLG) is rare. |
| Databáze: | OpenAIRE |
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