An unfortunate case of Pendred syndrome
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Published on: March 29, 2021
A Sanei-Moghaddam1, T Wilson, S Kumar
1Department of Otolaryngology, Addenbrooke's Hospital, Cambridge, UK. al.sane@doctors.net.uk
Insights
A patient with Pendred syndrome experienced severe hypokalemia and cardiac arrest due to cochlear implant complications and alcohol use. This case highlights the need for careful management in Pendred syndrome patients undergoing cochlear implantation.
Area of Science:
- Genetics and Audiology
- Endocrinology
Background:
- Pendred syndrome is a common genetic cause of sensorineural hearing loss, affecting the inner ear, thyroid, and kidneys.
- Patients with Pendred syndrome often require cochlear implantation for hearing rehabilitation.
- An underlying metabolic abnormality may be present but not clinically apparent.
Observation:
- A patient with Pendred syndrome developed life-threatening hypokalemia.
- This complication arose from an implant-induced imbalance and alcohol dependency.
- The patient suffered multiple cardiac arrests as a result.
Findings:
- Pendred syndrome, an autosomal recessive disorder, accounts for 10% of syndromic hearing loss.
- Cochlear implantation is frequently pursued by Pendred syndrome patients.
- Unforeseen metabolic issues can arise in these patients.
Implications:
- Cochlear implantation in Pendred syndrome requires comprehensive understanding of the condition.
- Proactive management is crucial to prevent severe morbidity.
- This case underscores the importance of considering metabolic factors and substance use in managing Pendred syndrome patients with implants.
Objective:
To report a patient with Pendred syndrome who developed life-threatening hypokalaemia as an unpredicted consequence of implant-induced imbalance and alcohol dependency, leading to multiple cardiac arrests.
Setting:
Addenbrooke's Hospital, Cambridge, UK.
Method:
Case report and review of the English language literature concerning Pendred syndrome and cochlear implantation in Pendred syndrome patients.
Result:
Pendred syndrome is an autosomal recessive disorder which mainly affects the inner ear, thyroid and kidneys. It accounts for 10 per cent of syndromic hearing loss cases. The majority of Pendred syndrome patients are referred to cochlear implant programmes for hearing assessment and therapy. They may also have an underlying metabolic abnormality which is not clinically apparent.
Conclusion:
Providing cochlear implants to patients with Pendred syndrome demands extensive knowledge of this condition, in order to avoid potential morbidity.
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