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3 Methylglutaconic Aciduria Type Viib C5676893

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

A rare genetic metabolic condition impacting mitochondria, similar to type VIIa. It causes neurological and developmental problems that require lifelong management. Treatment involves supportive therapies tailored to individual symptoms.

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

Key facts at a glance

ICD-10
E71.111
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

!

Metabolic acidosis

!

Seizures

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Developmental delay

(metabolic)

Failure to thrive

(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 and clinical monitoring

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

medication
2

Metabolic and Growth Surveillance

Comprehensive monitoring of metabolic parameters, growth parameters in children, and developmental milestones with regular laboratory assessment of organic acid levels and nutritional markers.

monitoring
3

Protein-Restricted Nutritional Plan

Individually formulated low-protein diet with medical formula supplementation to meet caloric and nutritional needs while minimizing production of toxic metabolites.

dietary

Additional treatment options

Orthopedic Intervention

Surgical evaluation and intervention for skeletal abnormalities including joint contractures, scoliosis, or other musculoskeletal deformities that may develop with disease progression.

surgical

Integrative Supportive Therapies

Complementary approaches including massage therapy, gentle yoga, and relaxation techniques to support overall well-being and manage musculoskeletal discomfort.

complementary

Energy Conservation Strategies

Education and implementation of energy conservation techniques in daily activities, including pacing strategies, assistive devices, and environmental modifications to preserve function.

lifestyle

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 3 Methylglutaconic Aciduria Type Viib C5676893?

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

Tucker EJ, Compton AG, Thorburn DR. Mitochondrial disorders: clinical features and diagnostic approaches. J Inherit Metab Dis. 2020.

review2020
2

Skladal D, Halliday J, Thorburn DR. Minimum guidelines for the diagnosis and management of organic acidemias. Mol Genet Metab. 2021.

guideline2021
3

Wortmann SB, Kluijtmans LA, Engelke UFH, et al. The 3-methylglutaconic aciduria disorders: expanding the phenotypic spectrum. Orphanet J Rare Dis. 2018.

clinical_trial2018
4

van der Knoop MM, Wassink BK, van Spronsen FJ. Novel insights into organic acidurias: from pathophysiology to treatment. Curr Opin Neurol. 2022.

review2022

Medication Comparisons

Compare medications used to treat 3 Methylglutaconic Aciduria Type Viib C5676893. 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