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D L 2 Hydroxyglutaric Aciduria C5574940

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

A rare metabolic disorder where both D and L forms of 2-hydroxyglutaric acid accumulate, affecting neurological development. It causes severe intellectual disability and motor problems. Care involves managing seizures and providing developmental support.

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

!

Seizures

!

Lactic acidosis

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Developmental delay

(metabolic)

Ataxia

(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

Metabolic stabilization therapy

Riboflavin and L-carnitine supplementation form the cornerstone of metabolic management in D-L-2-hydroxyglutaric aciduria. These cofactors support residual enzyme activity and improve cellular energy metabolism.

medication
2

Pharmacological management with first-line agents

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

medication
3

Neuroimaging surveillance

Regular MRI imaging monitors disease progression including white matter abnormalities and structural brain changes. Serial imaging helps guide therapeutic decisions and assess treatment response.

monitoring

Additional treatment options

Seizure management protocol

Aggressive seizure control using appropriate anticonvulsants is critical given the severe phenotype. Polytherapy may be necessary in refractory cases with careful attention to drug interactions.

medication

Protein-restricted diet

Dietary protein restriction, particularly limiting lysine and tryptophan, reduces substrate availability for toxic metabolite formation. Nutrition monitoring ensures adequate growth and development while maintaining metabolic control.

dietary

Antioxidant supplementation

Antioxidant therapy including vitamin E and coenzyme Q10 may provide neuroprotective benefits by reducing oxidative stress associated with metabolite accumulation. These supplements are adjunctive to primary metabolic therapies.

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 D L 2 Hydroxyglutaric Aciduria C5574940?

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 D L 2 Hydroxyglutaric Aciduria C5574940. 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