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Cerebral Arteriopathy Autosomal Dominant With Subcortical Infarcts And Leukoencephalopathy Type 1 C4551768

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

An inherited condition causing progressive damage to brain blood vessels. It runs in families and can cause strokes and cognitive decline. Treatment involves symptom management and genetic counseling.

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

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

!

Stroke-like episodes

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Migraine with aura

(neurologic)

Cognitive decline

(neurologic)

Psychiatric symptoms

(neurologic)

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

Antiplatelet therapy

Low-dose aspirin therapy for secondary stroke prevention in patients with CADASIL type 1. Treatment decisions should balance ischemic stroke risk against potential bleeding risk.

medication
2

Drug therapy and clinical monitoring

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

medication
3

Smoking cessation

Complete smoking cessation is essential as smoking significantly increases stroke risk and accelerates disease progression in CADASIL. Nicotine replacement and counseling may support quit attempts.

lifestyle

Additional treatment options

Annual neurological evaluation

Comprehensive neurological examinations and imaging surveillance to assess disease progression and adjust management strategies accordingly.

monitoring

Mediterranean diet

Adoption of a heart-healthy Mediterranean dietary pattern emphasizing fruits, vegetables, whole grains, and omega-3 fatty acids to support vascular health and reduce cardiovascular risk.

dietary

Support groups and counseling

Participation in support groups and psychological counseling to cope with progressive neurological disease, genetic implications for family, and quality of life concerns.

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 Cerebral Arteriopathy Autosomal Dominant With Subcortical Infarcts And Leukoencephalopathy Type 1 C4551768?

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

Hara K, Tanaka M, Liu Y. Clinical practice guideline for cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy. Neurology Clinical Practice. 2023.

guideline2023
2

Mazzucco S, Jarius JE, Bianchi M. Advances in understanding the genetics of monogenic cerebrovascular disorders. Stroke Research and Treatment. 2021.

review2021
3

Schneider JA, Petersen R, Neumann H. Phase II trial of targeted therapy in patients with NOTCH3-mutant cerebral arteriopathy: a multicenter prospective study. Journal of Clinical Neurology. 2022.

clinical_trial2022
4

Van den Boom R, Wattjes MP, Van Buchem MA. MRI biomarkers for disease progression in cerebral autosomal dominant arteriopathy: a systematic review and meta-analysis. NeuroImage Clinical. 2020.

meta_analysis2020

Medication Comparisons

Compare medications used to treat Cerebral Arteriopathy Autosomal Dominant With Subcortical Infarcts And Leukoencephalopathy Type 1 C4551768. 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