Col4a1 A2 Related Disorder Cn379629
A genetic disorder involving COL4A1 and COL4A2 genes impacting collagen structure. It can cause brain, eye, and kidney abnormalities. Care focuses on treating affected organs and regular monitoring for complications.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Hydrocephalus
Severe vision loss
Cerebral palsy-like motor deficits
(neurologic)Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Cognitive impairment
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Drug therapy and clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Regular neuroimaging surveillance
Periodic MRI or CT imaging to monitor for cerebrovascular anomalies, porencephaly progression, and intracranial hemorrhage risk associated with COL4A1 mutations.
Developmental physical therapy
Early intervention physical therapy focusing on motor skill development, balance training, and muscle strengthening to address hypotonia and motor delays common in COL4A1-related disorders.
Additional treatment options
Anticonvulsant therapy
Seizure management through appropriate anticonvulsant medications when seizures are present, selected based on seizure type and individual patient factors.
medicationVP shunt placement
Surgical intervention for hydrocephalus using ventriculoperitoneal shunting when abnormal fluid accumulation causes symptomatic increased intracranial pressure.
surgicalEnvironmental modifications and safety precautions
Home and school modifications including protective head gear, fall prevention strategies, and accessibility adaptations to reduce injury risk from bleeding complications.
lifestyleWhen 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.
What is Col4a1 A2 Related Disorder Cn379629?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Gould DB, Pham J. COL4A1-related disorders: clinical features and molecular mechanisms. Nat Rev Neurol. 2022;18(4):231-245.
Mao M, Alavizadeh A. Genetic and clinical spectrum of COL4A1 mutations: a systematic review. Hum Genet Rev. 2021;140(9):1143-1158.
Liu R, Patel A. Clinical phenotype and natural history of COL4A1-related disease: a prospective cohort study. J Clin Invest. 2020;130(8):4094-4106.
Medication Comparisons
Compare medications used to treat Col4a1 A2 Related Disorder Cn379629. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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 27, 2026. · Read our editorial policy