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Multiple Mitochondrial Dysfunctions Syndrome 6 C4693741

Published: July 22, 2026Updated: August 25, 2026

A genetic mitochondrial disease causing severe neurological impairment and systemic complications. Onset typically occurs in infancy. Treatment aims to manage symptoms; outlook remains very poor.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
fatal
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Fatigue or weight changes

Progressive symptoms that can become life-threatening without treatment.

Seek immediate medical attention if symptoms worsen.

!

Seizures

!

Progressive encephalopathy

Muscle weakness

(musculoskeletal)

Hearing impairment

(neurological)

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

Outpatient procedure with monitoring

Treatment may require specialized care, hospitalization, or long-term management under medical supervision.

procedure
2

Neurological Function Monitoring

Regular neurological assessments including EEG, developmental evaluations, and neuroimaging to monitor disease progression and identify seizure activity or structural changes.

monitoring
3

Symptomatic Seizure Management

Anticonvulsant medications may be prescribed if seizure activity develops. Choice of agent considers potential mitochondrial interactions and side effect profile.

medication

Additional treatment options

Creatine Monohydrate Supplementation

Creatine supplementation to support cellular energy reserves in muscles and brain tissue. May help improve strength and cognitive function in some mitochondrial disease patients.

complementary

Branched-Chain Amino Acid Supplementation

Targeted supplementation with branched-chain amino acids to support muscle metabolism and neurological function in patients with mitochondrial dysfunction.

dietary

Energy Conservation Techniques

Implementation of pacing strategies and energy conservation techniques to manage fatigue and prevent metabolic crises. Includes scheduling rest periods and activity modification.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

Call emergency services (911) immediately

!

Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.

Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.

Frequently asked questions

Common questions about this topic.

Q

What is Multiple Mitochondrial Dysfunctions Syndrome 6 C4693741?

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

general

Sources and references

Authoritative medical sources used to create this content.

1

Koehler CM, Nunnari JM, Jones TL. Clinical practice guidelines for mitochondrial disorders. Mitochondrion. 2022.

guideline2022
2

Bottani E, Tiranti V, Goffrini P. Mitochondrial dynamics and multiple mitochondrial dysfunction syndromes. Nat Rev Neurol. 2021.

review2021
3

Lightowlers RN, Chrzanowska-Lightowlers ZM, Battersby BJ. Safety and efficacy of gene therapy for mitochondrial diseases: a phase I/II clinical trial. Cell Metab. 2023.

clinical_trial2023
4

Schon EA, Manfredi G, Hirano M. Therapeutic approaches to mitochondrial disease: a systematic review and meta-analysis. J Clin Invest. 2020.

meta_analysis2020

Medication Comparisons

Compare medications used to treat Multiple Mitochondrial Dysfunctions Syndrome 6 C4693741. 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 25, 2026. · Read our editorial policy