Kearns-Sayer syndrome
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Kearns-Sayer syndrome |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and Key Words: Kearns Syndrome, Kearn-Sayre Mitochondrial Cytopathy, Kearns' Syndrome, Kearns-Sayre-Shy-Daroff Syndrome
Overview
Kearns-Sayer syndrome is a mitochondrial disorder featuring the triad of: [1]
- Chronic progressive external ophthalmoplegia
- Cardiomyopathy with heart block
- Retinitis pigmentosa
Diagnosis
Disease onset is in the first or second decade.
Diagnostic features include:
- Elevated CSF protein
- Sensorineural deafness
- Seizures
- Pyramidal signs
- Ragged-red fibers are found on muscle biopsy.
- ↑ Adams et al., Principles of Neurology, 6th ed, p984