Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 2 C3279699
A rare genetic disorder affecting mitochondria, the energy-producing structures in cells. It impairs energy generation, primarily affecting muscles, brain, and heart. Treatment focuses on symptom management and supportive care.
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.
Developmental delay
(neurological)Fatigue or weight changes
(metabolic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Hypotonia
(musculoskeletal)Lactic acidosis
(metabolic)Optic atrophy
(ophthalmologic)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
EPI-743 (Vatiquinone) Experimental Therapy
EPI-743 is an investigational drug that targets NADPH quinone oxidoreductase 1, enhancing cellular redox balance and mitochondrial function. It has shown promise in reducing oxidative stress associated with complex V deficiency.
Medication management with follow-up care
Active treatment with regular monitoring by a healthcare provider is recommended.
Biotin and Thiamine Combination Therapy
High-dose biotin and thiamine serve as essential cofactors for mitochondrial enzymes and may support improved energy metabolism in complex V deficiency by optimizing remaining mitochondrial function.
Additional treatment options
Glucose Metabolism Support Diet
A diet optimized for glucose metabolism with complex carbohydrates, controlled simple sugars, and consistent meal timing helps maintain stable blood glucose, reducing metabolic stress on impaired mitochondria.
dietaryMitochondrial Support Nutrient Cocktail
A combination of alpha-lipoic acid, L-carnitine, CoQ10, and omega-3 fatty acids provides comprehensive support for mitochondrial function through multiple mechanisms including antioxidant protection and membrane stabilization.
complementaryNeurological and Developmental Surveillance
Systematic neurological assessments, developmental screenings, and imaging studies monitor for progressive neurological involvement in nuclear type 2 complex V deficiency. Early detection enables timely intervention.
monitoringWhen 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 Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 2 C3279699?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
Compare medications used to treat Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 2 C3279699. 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