from Part VII - Parkinson's and related movement disorders
Published online by Cambridge University Press: 04 August 2010
General symptomatology of patients with parkinsonism
In the nearly 200 years since James Parkinson's original essay on ‘shaking palsy’ (Parkinson, 1817), clinicians have learned that he described a syndrome rather than a specific disease and that Parkinson's has many imitators. As a syndrome, parkinsonism is characterized by tremor, bradykinesia, rigidity and postural reflex compromise. Parkinson's disease is one of many parkinsonian syndromes and is defined by the same clinical signs in association with a distinct type and pattern of cellular degeneration. Parkinsonism can occur as an isolated clinical syndrome, classified as primary when it is due to hereditary or idiopathic causes or secondary when it has another identifiable underlying etiology. When parkinsonism occurs in association with other neurological signs, it is classified as one of the well-defined parkinsonism-plus syndromes or as parkinsonism associated with defined hereditodegenerative disorders (Table 37.1). Parkinson's disease is the archetype of primary parkinsonism. A thorough history and comprehensive examination can usually differentiate Parkinson's disease from other parkinsonian syndromes. Nevertheless, clinicopathological studies have shown that 20% of patients thought clinically to have Parkinson's disease turn out to have pathological cellular changes suggestive of other diagnoses, and 5–10% of parkinsonian subjects with an atypical clinical picture for Parkinson's disease have the typical cellular changes of Parkinson's disease at autopsy (Hughes et al., 2001).
Unilateral tremor is the most common initial symptom resulting in medical consultation for Parkinson's disease.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.