Journal
NEUROLOGICAL SCIENCES
Volume 23, Issue -, Pages S77-S78Publisher
SPRINGER-VERLAG
DOI: 10.1007/s100720200078
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Parkinson's disease is characterized by heterogeneity of clinical presentations, association of signs and symptoms, rate of progression, and response to therapy. The aim of this prospective 5-year study was to evaluate whether clinical features at onset were predictive of the subsequent progression. Two courses were identified which differed in the characteristics at onset. Slow course was characterized by earlier age at onset, lateralization of motor signs, rest tremor, and absence of gait disturbance. Rapid course presented older age, less evident lateralization of signs, predominance of bradykinesia-rigidity and gait disturbance. Our results confirmed that PD is clinically heterogeneous and specific patterns of onset seem to be associated with different rates of disease progression. Predictive models based on these clinical characteristics have a good sensitivity in indicating a slow disease progression but are not reliable in indicating a rapid evolution.
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