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Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation
Published on: February 29, 2020
Delayed retroauricular cerebrospinal fluid (CSF) collection in cochlear implantation
Roberto Filipo1, Edoardo Covelli, Chiara D'elia
1Neurology and Otolaryngology Department,University 'La Sapienza' of Rome, Italy.
Cochlear Implants International
|January 19, 2012
Summary
This is the first report of delayed cerebrospinal fluid (CSF) leakage behind the ear in a child after cochlear implant surgery. Surgical revision revealed thin dura mater and CSF leakage, necessitating repair and repositioning of the implant.
Area of Science:
- Otolaryngology
- Neurosurgery
- Pediatric Surgery
Background:
- Cochlear implantation is a common procedure for hearing loss.
- Receiver-side exposure of the dura mater is sometimes necessary during implantation.
- This procedure aims to prevent implant protrusion in patients with thin bone.
Observation:
- A delayed retroauricular cerebrospinal fluid (CSF) collection occurred 18 months post-cochlear implantation in a child.
- Surgical revision identified anomalous thinning of the dura mater.
- CSF leakage was present beneath the cochlear implant receiver.
Findings:
- The identified dura thinning and CSF leakage required local sealing and repositioning of the receiver.
- This case represents the first documented instance of delayed retroauricular CSF collection in a pediatric cochlear implant recipient.
- Dural exposure, while generally safe, carries risks, particularly in pediatric cases.
Implications:
- Careful consideration and meticulous technique are advised when performing dural exposure in pediatric cochlear implant surgeries.
- This finding highlights a potential, albeit rare, complication of cochlear implantation in children.
- Further research may be warranted to understand risk factors and optimize preventative strategies for dural complications.