Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 1 C3276276
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)Seizures
(neurological)Cardiomyopathy
(cardiovascular)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
Dichloroacetate (DCA) Therapy
DCA activates pyruvate dehydrogenase, promoting glucose oxidation over glycolysis and potentially improving ATP production efficiency when complex V function is compromised. This may reduce lactic acidosis common in this condition.
Drug therapy with clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Ubiquinol (Reduced CoQ10) Supplementation
Ubiquinol is the reduced, more bioavailable form of CoQ10 that may better support mitochondrial electron transport and cellular energy production when complex V ATP synthesis is impaired.
Additional treatment options
Symptomatic Organ-Specific Interventions
Targeted procedures for specific organ manifestations such as cardiac pacing for arrhythmias, cochlear implantation for hearing loss, or surgical correction of structural abnormalities associated with complex V deficiency.
procedureEnergy Conservation Techniques
Teaching patients energy conservation methods helps them manage fatigue and accomplish daily activities without depleting limited mitochondrial resources. Includes pacing strategies, assistive devices, and activity modification.
lifestyleMetabolic and Biochemical Surveillance
Regular monitoring of lactate levels, metabolic panels, cardiac function, and neurological status helps track disease progression and treatment response in complex V ATP synthase deficiency.
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 1 C3276276?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
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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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy