Document Detail

Peripherally induced tremor and parkinsonism.
MedLine Citation:
PMID:  7872879     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Trauma to the peripheral nervous system is a well-recognized cause of dystonia and tremor, but peripherally induced parkinsonism has not previously been documented. We seek to characterize peripherally induced tremor and parkinsonism and propose possible mechanisms for this phenomenon. DESIGN: Review of records of patients evaluated in the Movement Disorders Clinic between 1977 and 1993. In addition to demographic and clinical information, the records were screened for any potential predisposing factors. PATIENTS: Twenty-eight patients in whom the onset of tremor, parkinsonism, or both was anatomically and temporally related to local injury. INTERVENTION: The type and site of injury were verified by history and examination of records whenever possible. Severity of tremor and parkinsonism was assessed by clinical rating scales. Three patients with tremor and parkinsonism had their striatal [18F]-fluorodopa uptake and raclopride binding measured with positron emission tomography. MAIN OUTCOME MEASURE: Response to conventional antitremor and antiparkinsonian medication was assessed by a clinical rating scale. RESULTS: Severe local injury preceded the onset of movement disorder by 47.5 +/- 74.7 days (mean +/- SD). The mean age at onset of movement disorder was 46.5 +/- 14.1 years. Tremor was present in all 28 patients, 11 of whom exhibited additional parkinsonian features. In 20 patients, the movement disorder spread beyond the original site. Possible predisposing factors were identified in 13 patients; nine had essential tremor or a family history of essential tremor. In addition to tremor, dystonia and myoclonus were evident in 13 and three patients, respectively. Reflex sympathetic dystrophy was present in six patients. Tremor did not improve with medications, and only seven patients with parkinsonism responded to therapy with levodopa. CONCLUSION: Central reorganization in response to peripheral injury may give rise to a motor disturbance, including tremor and parkinsonism.
F Cardoso; J Jankovic
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Publication Detail:
Type:  Case Reports; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives of neurology     Volume:  52     ISSN:  0003-9942     ISO Abbreviation:  Arch. Neurol.     Publication Date:  1995 Mar 
Date Detail:
Created Date:  1995-03-24     Completed Date:  1995-03-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372436     Medline TA:  Arch Neurol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  263-70     Citation Subset:  AIM; IM    
Department of Neurology, Baylor College of Medicine, Houston, Tex.
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MeSH Terms
Arm Injuries / complications
Middle Aged
Neck Injuries
Parkinson Disease / etiology*
Peripheral Nerves / injuries*
Tooth Injuries / complications
Tremor / etiology*

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