SPG4 and Dementia: Expanding the Clinical Spectrum

Key Points

• The study aims to explore the connection between SPG4/SPAST variants and atypical dementia in patients diagnosed with hereditary spastic paraplegia (HSP).
• Investigated pathogenic SPG4/SPAST variants in an international cohort of HSP patients.
• Conducted genotype-phenotype assessments across three continents.
• Analyzed clinical presentations and symptoms of patients with these variants.
• Identified a new type of HSP complicated by atypical dementia.
• Expanded understanding of the clinical spectrum associated with SPG4 variants.
• Provided insights for patient counseling based on genotype-phenotype relationships.