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Mitochondrial Complex V Atp Synthase Deficiency Nuclear Type 5 C4748269

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.

Warning signs - seek immediate care

!

Lactic acidosis

!

Seizures

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Motor developmental delay

(metabolic)

Sensorineural hearing loss

(metabolic)

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

Drug therapy with clinical monitoring

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

medication
2

Mitochondrial disease cocktail

Combination therapy including CoQ10, L-carnitine, B-complex vitamins, and alpha-lipoic acid tailored to individual patient needs for comprehensive mitochondrial support.

medication
3

Multisystem surveillance program

Comprehensive monitoring of cardiac, neurological, endocrine, and hepatic systems due to the systemic nature of complex V deficiency type 5.

monitoring

Additional treatment options

Cardiac device implantation

For patients developing cardiomyopathy or arrhythmias, pacemakers or defibrillators may be necessary to manage cardiac complications of mitochondrial disease.

surgical

Respiratory muscle training

Targeted exercises to maintain respiratory muscle strength, which may be affected in mitochondrial myopathy. Includes incentive spirometry and breathing exercises.

physical_therapy

Photobiomodulation therapy

Low-level light therapy to potentially improve mitochondrial function and reduce cellular stress. Emerging therapy with promising preliminary results.

complementary

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 5 C4748269?

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 5 C4748269. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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