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Table 3 Clinical characteristics of CBS sample

From: Differentiating between visual hallucination-free dementia with Lewy bodies and corticobasal syndrome on the basis of neuropsychology and perfusion single-photon emission computed tomography

Clinical characteristics Frequency (%) at time of investigation (N =31) Frequency (%) at follow-up (N =31)
Extrapyramidal features   
Rigidity (asymmetric) 28 (90.3%) 31 (100%)
Dystonia 16 (51.6%) 18 (58.1%)
Levodopa trial with poor responsea 13 (41.9%) 13 (41.9%)
Tremor – postural/action 8 (25.8%) 11 (35.6%)
Cortical features   
Apraxia 28 (90.3%) 31 (100%)
Cortical sensory loss 19 (61.3%) 19 (61.3%)
Alien-limb phenomenon 1 (3.2%) 3 (9.7%)
Limb levitation 7 (22.6%) 10 (32.3%)
Myoclonus 9 (29.0%) 13 (41.9%)
Early dementia 22 (71.0%) 22 (71.0%)
Language disturbance 24 (77.4%) 24 (77.4%)
  1. aThirteen patients had a trial of levodopa and all responded poorly based on clinical assessment. Average time for emergence of additional symptoms or signs on follow-up was 1.0 ± 0.3 years. CBS, corticobasal syndrome; N, number.
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