Measuring disease progression in corticobasal syndrome

Nancy Huang, Michael Hornberger, John R. Hodges, James R. Burrell (Lead Author)

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Corticobasal syndrome (CBS) is a complex neurodegenerative disorder with marked clinical, neuropsychological, and pathological heterogeneity. Measurement of disease progression in CBS is complex and little understood. This study aimed to establish clinical and neuropsychological indicators of prognosis in CBS. Patients with CBS were retrospectively recruited from a frontotemporal dementia specific research clinic. All patients underwent detailed clinical and neuropsychological testing including the frontotemporal dementia rating scale (FRS). Using the differences in FRS logit scores over a period of 12 months, CBS patients were divided into rapid and slow progressor groups. Demographic, clinical and neuropsychological features were compared between the two groups. Sixteen participants who met defined criteria were included (9 males, 7 females; mean age 65.8 ± 22 years; median symptom duration 51.8 ± 22 years; mean duration of follow-up 11.4 ± 2.8 months). There were no significant differences between the rapid and slow progressors in age, gender, symptom duration, motor/cognitive presentation, and ACE-R scores at baseline. Clinically, slow progressors were significantly more likely to have a motor speech disorder, with a trend for more frequent dysgraphia, whereas rapid progressors were more likely to exhibit surface dyslexia. Rapid and slow progressor groups did not differ on neuropsychological performance. The presence of motor speech disorder, dysgraphia, and surface dyslexia may be useful in differentiating patients with rapid progression of CBS from those with a more indolent disease course.

Original languageEnglish
Pages (from-to)1598-1605
Number of pages8
JournalJournal of Neurology
Issue number8
Early online date4 Jun 2014
Publication statusPublished - Aug 2014


  • Adult
  • Aged
  • Aged, 80 and over
  • Aniline Compounds
  • Basal Ganglia
  • Cerebral Cortex
  • Cognition Disorders
  • Disease Progression
  • Female
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Neurodegenerative Diseases
  • Neuropsychological Tests
  • Positron-Emission Tomography
  • Severity of Illness Index
  • Statistics, Nonparametric
  • Thiazoles

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