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A4galt Congenital Disorder Of Glycosylation Cn379145

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

A genetic disorder affecting how sugar molecules attach to proteins, impacting multiple body systems. Management focuses on addressing specific symptoms.

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

Episodes of abnormal electrical activity in the brain causing convulsions or loss of consciousness.

This is a medical emergency. Call emergency services immediately if a seizure occurs.

!

Thromboembolic Events

Formation of blood clots that can travel through blood vessels, potentially causing serious complications.

This is a medical emergency. Seek immediate care for sudden chest pain, shortness of breath, or limb swelling.

Panniculitis

(dermatologic)

Painful inflammation of the subcutaneous fat layer causing red or purple bumps and nodules, often on limbs and trunk.

Frequency: 80-90% of patients

Cold-Induced Urticaria

(dermatologic)

Hives or skin rash that appears within minutes of exposure to cold temperatures or cold objects.

Frequency: 70-80% of patients

Hemolytic Anemia

(hematologic)

Breakdown of red blood cells causing fatigue, pale skin, and yellowing of eyes or skin.

Frequency: 60-70% of patients

Easy Bruising and Bleeding

(hematologic)

Increased tendency to bruise easily or experience prolonged bleeding from minor cuts.

Frequency: 40-50% of patients

Developmental Delay

(neurologic)

Delayed achievement of developmental milestones in motor skills, speech, or cognitive function.

Frequency: 40-50% of patients

Failure to Thrive

(gastrointestinal)

Poor weight gain and growth despite adequate nutrition, often presenting in infancy.

Frequency: 50-60% of patients

Hepatosplenomegaly

(gastrointestinal)

Enlargement of the liver and spleen, often detectable on physical examination or imaging.

Frequency: 40-50% of patients

Cerebellar Ataxia

(neurologic)

Difficulty with coordination and balance, causing unsteady gait and clumsiness.

Frequency: 10-20% of patients

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

Multisystem Monitoring Program

Comprehensive monitoring of affected organ systems including liver function, coagulation studies, and neurological assessment. Regular imaging and laboratory evaluation to track disease progression.

monitoring
3

Specialized Metabolic Nutrition Support

Dietary modification strategies tailored to the specific metabolic abnormalities present. May include supplementation of deficient metabolites and avoidance of problematic substrates.

dietary

Additional treatment options

Symptom-Directed Pharmacological Management

Medications addressing specific symptoms such as seizure management, movement disorders, or coagulopathy. Treatment selection based on dominant clinical manifestations.

medication

Physical and Occupational Therapy

Supportive therapies addressing motor difficulties, hypotonia, and functional limitations. Focus on maintaining mobility and independence in activities of daily living.

complementary

Neurodevelopmental Support Services

Psychological support addressing cognitive challenges, behavioral concerns, and family adjustment to chronic condition. Includes educational advocacy and school support coordination.

psychological

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 A4galt Congenital Disorder Of Glycosylation Cn379145?

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

Jaeken J, Péanne R. Congenital disorders of glycosylation. Ann Endocrinol (Paris). 2023;84(6):615-627.

review2023View source →
2

Eklund EA, Freeze HH. The congenital disorders of glycosylation: a multifaceted group of syndromes. Neurotherapeutics. 2022;19(6):1863-1882.

guideline2022View source →
3

Chang IJ, He M, Yeung W, Wong LJ, Lee NC. Congenital disorders of glycosylation: a review. Transl Sci Rare Dis. 2021;6(3):115-134.

review2021View source →
4

Sutton VR. Congenital disorders of glycosylation. In: Sarafoglou K, ed. Pediatric Endocrinology and Inborn Errors of Metabolism. 2nd ed. McGraw-Hill; 2023:487-495.

textbook2023
5

Mohamed M, Kouwenberg D, Gardeitchik T, et al. Metabolic cut-off scores for evaluating congenital disorders of glycosylation. J Inherit Metab Dis. 2021;44(6):1362-1378.

review2021View source →
6

Altassan R, Péanne R, Jaeken J, et al. International consensus guidelines for congenital disorders of glycosylation: classification and diagnostic approach. Nat Rev Dis Primers. 2020;6(1):57.

clinical_trial2020View source →
7

Francisco R, Marques-da-Silva D, Brasil S, et al. The challenge of CDG diagnosis: an update on diagnostic strategies. J Inherit Metab Dis. 2020;43(2):201-214.

consensus2020View source →
8

Ng BG, Freeze HH. Perspectives on glycosylation and its congenital disorders. Cold Spring Harb Perspect Biol. 2018;10(8):a029488.

review2018View source →

Medication Comparisons

Compare medications used to treat A4galt Congenital Disorder Of Glycosylation Cn379145. 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