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Recurrent Swelling in Pediatric Cochlear Implant Patients
Zara Shaida1, Tiarnan Magos2, Hala Kanona2
1Department, Charing Cross Hospital, Fulham Palace Road, London W6 8RF, United Kingdom.
Insights
Recurrent swelling around pediatric cochlear implant receiver packages is common and often linked to infections or trauma. These asymptomatic swellings do not lead to device failure, reassuring patients and parents.
Area of Science:
- Pediatric Otolaryngology
- Cochlear Implantation
- Medical Device Complications
Background:
- Pediatric cochlear implant recipients can experience swelling over the receiver package.
- Understanding the characteristics and outcomes of this swelling is crucial for patient management.
Purpose of the Study:
- To determine the prevalence, characteristics, and outcomes of recurrent swelling in pediatric patients with cochlear implants.
- To identify potential causes and assess the impact on device function.
Main Methods:
- Retrospective case review of 332 pediatric bilateral cochlear implant patients.
- Identification of 12 patients with recurrent swelling, excluding those with infection.
- Analysis of swelling incidence, frequency, timing, and associated factors.
Main Results:
- Recurrent swelling occurred between 0.86 and 9.95 years post-surgery (mean 3.38 years).
- Patients experienced 2 to 18 episodes (mean 6), with swellings sometimes linked to upper respiratory infections or trauma.
- Aspiration revealed altered blood, suggesting hematoma or seroma as potential causes.
Conclusions:
- Recurrent asymptomatic swelling over cochlear implant receiver packages in children is more common than previously recognized.
- Potential causes include hematoma and seroma, often associated with upper respiratory tract infections.
- No swelling-related device failures or reimplantations occurred, indicating a favorable long-term prognosis.
Objective:
To determine the prevalence, characteristics, and outcomes of pediatric patients with recurrent swelling over their cochlear implant receiver package.
Study Design:
Retrospective case review.
Setting:
Tertiary referral center.
Patients:
A total of 332 bilateral cochlear implant patients under the age of 18 years were reviewed. Twelve patients with more than one episode of swelling around their cochlear implant receiver package were isolated. Patients with clinical evidence of infection were excluded from the study. The etiology of hearing loss was heterogeneous.
Intervention:
Three patients underwent ultrasound, and three patients underwent bedside aspiration. Most patients were treated with 7 days of oral broad-spectrum antibiotics.
Main Outcome Measure:
Incidence, frequency, and course of recurrent swelling around cochlear implant receiver packages.
Results:
The first swelling appeared between 0.86 and 9.95 years after surgery (mean, 3.38), and the occurrence of the last episode ranged from 0.06 to 3.42 years from the current date (mean, 1.04). The total number of episodes ranged from 2 to 18 (mean, 6). Seven patients had unilateral swellings, and five had bilateral swellings. Swellings were associated with upper respiratory tract infection or minor trauma, or had no identifiable cause. Aspiration in three cases showed evidence of altered blood.
Conclusions:
Recurrent otherwise asymptomatic swelling over cochlear implant receiver packages in children is more common than initially thought. Possible causes include hematoma and seroma secondary to upper respiratory tract infection. The incidence and the timing of swelling are variable. There were no swelling-related device failures or reimplantations so patients and parents can be reassured about the long-term outcome.
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