Kearns Sayre Syndrome C0022541
A mitochondrial disorder causing progressive muscle weakness, vision changes, and heart problems. It requires multidisciplinary care to manage its various effects.
Key facts at a glance
- ICD-10
- H49.811, H49.812, H49.813
- ICD-11
- 9A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Cardiac conduction defects
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Progressive external ophthalmoplegia
(neurologic)Pigmentary retinopathy
(neurologic)Cerebellar ataxia
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Cardiac conduction monitoring
Regular cardiac monitoring with ECG and Holter studies is essential to detect conduction abnormalities early, as cardiac complications are a major cause of mortality in Kearns-Sayre Syndrome. Echocardiography should also be performed periodically to assess cardiac function.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Pacemaker implantation
Surgical placement of a permanent pacemaker is often necessary when cardiac conduction defects progress to potentially life-threatening arrhythmias. This is a definitive intervention that significantly reduces sudden cardiac death risk in affected patients.
Additional treatment options
Coenzyme Q10 supplementation
Coenzyme Q10 acts as an electron carrier in the mitochondrial electron transport chain and may help improve mitochondrial function in patients with Kearns-Sayre Syndrome. Treatment response varies among individuals.
medicationOphthalmoplegia rehabilitation
Physical therapy focused on eye movement disorders and ptosis management helps maximize visual function and compensate for extraocular muscle weakness. Adaptive techniques and assistive devices may improve quality of life.
physical_therapyGenetic counseling and family support
Comprehensive genetic counseling for patients and families helps understand inheritance patterns, recurrence risks, and available reproductive options. Family screening for early manifestations is recommended.
lifestyleMedication Comparisons
Compare medications used to treat Kearns Sayre Syndrome C0022541. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy