Last reviewed dd mmm yyyy. Last edited dd mmm yyyy
Step 1. Diagnosis of a parkinsonian syndrome (1)
Bradykinesia and at least one of the following:
• muscular rigidity
• rest tremor (4–6 Hz)
• postural instability unrelated to primary visual, cerebellar, vestibular or proprioceptive dysfunction.
Step 2. Exclusion criteria for Parkinson's disease (PD)
History of :
• repeated strokes with stepwise progression
• repeated head injury
• antipsychotic or dopamine-depleting drugs
• definite encephalitis and/or oculogyric crises on no drug treatment
• more than one affected relative
• sustained remission
• negative response to large doses of levodopa (if malabsorption excluded)
• strictly unilateral features after 3 years
• other neurological features: supranuclear gaze palsy, cerebellar signs, early severe autonomic involvement, Babinski sign, early severe dementia with disturbances of language, memory or praxis
• exposure to known neurotoxin
• presence of cerebral tumour or communicating hydrocephalus on neuroimaging.
Step 3. Supportive criteria for PD
Three or more required for diagnosis of definite PD :
Reference:
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page