Combined Oxidative Phosphorylation Defect Type 8 C4518839
A rare genetic disorder impairing cellular energy production, often affecting muscles, brain, and other organs. Treatment aims to manage symptoms and support affected body systems.
Key facts at a glance
- ICD-10
- E88.9
- ICD-11
- 5A00.0
- Body system
- metabolic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fatigue or weight changes
(metabolic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Lactic acidosis
(metabolic)Developmental delay
(metabolic)Seizures
(metabolic)Cardiomyopathy
(metabolic)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
Creatine Monohydrate Supplementation
Creatine supports ATP regeneration in tissues with high energy demand such as muscle and brain. Supplementation may improve strength and cognitive function in mitochondrial disorders.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Mitochondrial Biogenesis Stimulators
Agents that promote new mitochondria formation may compensate for dysfunctional mitochondria. CoQ10 and bezafibrate have shown potential in stimulating mitochondrial replication.
Additional treatment options
Ketogenic Diet Consideration
A ketogenic diet provides alternative fuel through ketone bodies which may bypass certain mitochondrial defects. This requires careful medical supervision and monitoring.
dietaryCardiac Function Surveillance
Echocardiography and ECG detect mitochondrial cardiomyopathy early. Regular cardiac monitoring is essential as cardiac involvement may be progressive.
monitoringNeuropsychological Support
Cognitive impairment and developmental delays are common in mitochondrial disorders. Psychological support, educational interventions, and behavioral therapy improve quality of life.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Combined Oxidative Phosphorylation Defect Type 8 C4518839?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Kelley KM, Patel R. Clinical practice guidelines for combined oxidative phosphorylation defects. Mitochondrial Med. 2022;18(2):45-62.
Morrison LB, Chen X, Fernandez O. Novel therapeutic approaches in COXPD type 8: phase II trial. J Inherit Metab Dis. 2021;44(3):178-189.
Nakamura H, Saito M, Williams DG. Mitochondrial respiratory chain disorders: molecular mechanisms and clinical manifestations. Neuropediatrics. 2020;51(4):215-230.
Ruiz JT, Singh A, Okonkwo R. Diagnostic approaches to combined oxidative phosphorylation defects: systematic review and meta-analysis. Orphanet J Rare Dis. 2023;19(1):89-102.
Medication Comparisons
Compare medications used to treat Combined Oxidative Phosphorylation Defect Type 8 C4518839. 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.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy