CADASIL: how to avoid the unavoidable?

Area of Science:

• Neurology
• Genetics
• Vascular Biology

Background:

• Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a rare genetic disorder.
• It is characterized by progressive cerebrovascular damage, including strokes and vascular dementia.
• The Notch3 gene mutation is the primary cause of CADASIL.

Observation:

• Three siblings presented with successive cerebrovascular events (hemorrhage and ischemic stroke) between ages 55 and 65.
• Family history revealed maternal deaths from vascular dementia and hemorrhagic stroke.
• Extensive white matter involvement was noted in affected individuals.
• Genetic analysis identified a Notch3 gene mutation in two siblings.

Findings:

• The family was diagnosed with CADASIL, a hereditary cerebrovascular disease.
• The successive presentation of CADASIL in siblings highlights a potential familial clustering.
• White matter lesions and specific stroke types are key clinical manifestations.

Implications:

• This case underscores the importance of genetic testing for suspected CADASIL in families with a history of cerebrovascular disease.
• Understanding the clinical course and genetic basis of CADASIL is crucial for developing effective management strategies.
• Further research is warranted to explore therapeutic interventions and improve patient outcomes for this debilitating condition.