Overview
Corticobasal syndrome (CBS) is a neurodegenerative disorder characterized by asymmetric motor symptoms, cognitive impairment, and often involves basal ganglia dysfunction, presenting clinically with features like limb apraxia and dystonia 1.Diagnosis
Clinical presentation includes asymmetric motor impairment, apraxia, and cognitive decline 1.
Neuroimaging typically shows no specific structural abnormalities but may reveal asymmetrical hypometabolism 1.
Dopaminergic denervation evidenced by imaging or biomarkers can support diagnosis 1.
MRI scans often normal or show nonspecific changes without visible infarction 1.Management
No specific disease-modifying treatments; management focuses on symptomatic relief 1.
Pharmacologic management may include:
- Anticholinergics for tremor (e.g., trihexyphenidyl, dose varies) 1.
- Dopamine agonists or levodopa cautiously, given potential variability in response 1.
Physical, occupational, and speech therapy to maintain function 1.Special Populations
Surgery Complications: Transient cerebral hypoxia post-endarterectomy may precipitate CBS-like symptoms, suggesting caution in postoperative monitoring 1.
No specific data provided for pregnancy, pediatrics, or elderly populations 1.Key Recommendations
Closely monitor patients post-carotid endarterectomy for signs of corticobasal syndrome due to potential hypoxic complications (Evidence: Weak) 1.
Utilize neuroimaging to identify asymmetrical hypometabolism and dopaminergic denervation as supportive diagnostic features (Evidence: Weak) 1.
Employ symptomatic treatments such as anticholinergics and consider cautious use of dopaminergic agents based on individual response (Evidence: Expert opinion) 1.References
1 Marques A, Bourgois N, Vidal T, Ferrier A, Mathais S, Merlin C et al.. Subacute corticobasal syndrome following internal carotid endarterectomy. Revue neurologique 2018. link