Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-11-3
pubmed:abstractText
We studied the clinical features, laboratory investigation, management and natural history of a cohort of patients with Juvenile Parkinsonism (JP), seen at a tertiary referral centre. JP was defined as Parkinsonism with onset at age 20 years or less. Six patients (five male, one female) entered the study. The mean age at onset of Parkinsonism was 12.5 years (range 7-19) and the mean follow-up time was 49.3 months (range 40-57). Bradykinesia, rigidity, and postural instability were observed in all patients and five subjects had tremor. Dystonia was present in four subjects. Other clinical features were dementia (five subjects), supranuclear ophthalmoparesis (five subjects), seizures (three subjects), multifocal myoclonus (one subject), decreased deep reflexes (one subject), pyramidal signs (one subject). Family history of Parkinson's disease (PD) was positive in one subject. Work-up for Wilson's disease was negative in all patients. Neuroimaging studies showed cortical atrophy in two subjects and mild brainstem atrophy in two others. Sea-blue histiocytes were found in one subject. L-dopa improved the Parkinsonism in all subjects but four rapidly developed fluctuations and dyskinesias, requiring, in one, stereotaxic surgery. After a mean disease duration of 6.5 years, five subjects require assistance for performance of all daily activities. JP is a heterogeneous clinical entity. In the majority of patients, no underlying cause is identified. The unusual clinical features suggest most subjects have a CNS degenerative disease distinct from PD. There is, however, evidence suggesting that PD may rarely cause JP. Gangliosidosis is another cause of L-dopa-responsive JP. Regardless of the cause, in the present study JP displays an aggressive and rapidly progressive course in most patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1351-5101
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
467-71
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Juvenile parkinsonism: a heterogeneous entity.
pubmed:affiliation
Movement Disorders Clinic, Department of Neurology, The Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. cardosof@metalink.com.br
pubmed:publicationType
Journal Article, Case Reports