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Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 3 C3279708

Published: July 22, 2026Updated: August 20, 2026

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.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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)

Encephalopathy

(neurological)

Peripheral neuropathy

(nervous)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Coenzyme Q10 (CoQ10) supplementation

CoQ10 supplementation supports mitochondrial electron transport chain function and may help improve ATP production in complex V deficiency. This is commonly used as a supportive therapy in mitochondrial disorders.

medication
2

Evidence-based pharmacological treatment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Regular cardiac monitoring

Echocardiograms and ECG to monitor for cardiomyopathy and arrhythmias, which are common complications in mitochondrial complex V deficiency. Early detection allows for timely intervention.

monitoring

Additional treatment options

Energy conservation techniques

Teaching patients to balance activity with rest periods to prevent metabolic crises. Includes pacing strategies and stress management to minimize energy demands on compromised mitochondria.

lifestyle

Ketogenic diet consultation

Specialized dietary approach that may provide alternative energy substrates for mitochondrial dysfunction. Requires careful monitoring by metabolic specialists.

dietary

Gentle exercise program

Tailored low-intensity exercises to maintain muscle strength and function without overexertion. Includes stretching, swimming, and walking programs adapted to patient capacity.

physical_therapy

When 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.

Q

What is Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 3 C3279708?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 3 C3279708. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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