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CADASIL

CADASIL



Overview

CADASIL, or cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy, is a rare, inherited disorder that causes blood flow blockages in the brain, leading to stroke, dementia, and migraines with aura. Caused by mutations in the <<Huffman>NOTCH3 gene, it typically manifests in adults between ages 20 and 40 and requires a diagnosis confirmed by genetic testing or a skin biopsy. There is no cure, so management focuses on symptom treatment and reducing stroke risk factors, such as high blood pressure and smoking.  

Symptoms

Migraine with aura: Often the first symptom, appearing in early to mid-adulthood. 

Strokes: Recurrent ischemic strokes are common, and they can lead to a progressive decline in cognitive function. 

Cognitive decline: This can progress to dementia over time, affecting memory, thinking, and executive function. 

Mood disturbances: Apathy, depression, and other mood issues can occur. 

Acute encephalopathy: In some cases, confusion or coma can occur due to acute brain dysfunction. 

Causes

Genetic mutation: CADASIL is caused by a mutation in the <<Huffman>>NOTCH3 gene, which affects the small blood vessels in the brain.

Autosomal dominant inheritance: The condition is inherited in an autosomal dominant pattern, meaning only one copy of the mutated gene is needed to cause the disorder. 

Diagnosis

Genetic testing: The primary method for a definitive diagnosis is genetic testing for <<Huffman>>NOTCH3 gene mutations. 

Skin biopsy: If genetic testing is negative, a skin biopsy can be performed to look for characteristic granular osmiophilic material (GOM). 

Clinical evaluation: Doctors consider symptoms, family history, and brain imaging results, which can show damage to the white matter of the brain. 

Treatment and management

No cure: There is currently no cure for CADASIL. 

Symptom management: Treatment focuses on managing symptoms like migraines with appropriate medication and treating mood disorders with antidepressants. 

Stroke risk reduction: Managing risk factors like high blood pressure, high cholesterol, and diabetes is crucial for reducing stroke risk. 

Lifestyle changes: Quitting smoking and maintaining an active lifestyle are important for managing stroke risk. 

Type of Doctor Department : A neurologist

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