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Small (autonomic) and large fiber neuropathy in Parkinson disease and parkinsonism.
- Source :
- BMC Neurology; 8/17/2016, Vol. 16, p1-7, 7p, 1 Chart, 2 Graphs
- Publication Year :
- 2016
-
Abstract
- <bold>Background: </bold>Recent studies have reported that peripheral neuropathy (PN) is common in patients with Parkinson's disease (PD) and raised the possibility that levodopa neurotoxicity is the main culprit.<bold>Methods: </bold>We evaluated the presence of large & small (autonomic) fiber PN in 54 consecutive patients with PD or parkinsonism in a tertiary outpatient clinic from Brazil. Initial PN screening consisted of history/neurological exam and skin wrinkling test (SWT). In addition, we also performed Nerve conduction studies/Electromyography (NCS/EMG) in all patients with PN signs/symptoms and/or abnormal SWT.<bold>Results: </bold>Thirty eight patients with PD (10 women, mean age: 63 ± 2.1 years, P < 0.05 versus parkinsonism, mean disease duration: 8 ± 0.8 years) and 16 patients with other forms of parkinsonism [7 women, mean age: 50.1 ± 3.9 years, mean disease duration: 6.9 ± 1.1 years] completed clinical neuromuscular evaluation. SWT was performed in 48 patients (33 PD, 15 parkinsonism). In the PD group, SWT was abnormal in 57.6% of the tested patients (comprising 50% of all PD patients). In the parkinsonism group, SWT was abnormal in 37.5% (comprising 35.3% of all parkinsonism patients). NCS/EMG was performed in 39 patients (26 PD and 13 parkinsonism). Twelve out of the 26 PD (34.2% of all PD) and 4 out of the 13 parkinsonism (23.5% of all parkinsonism) had abnormal NCS/EMG results. Neuropathy prevalence was similar in PD and parkinsonism groups as detected either by NCS/EMG or SWT.<bold>Conclusions: </bold>Large fiber and small (autonomic) fiber PN are common in patients with PD and parkinsonism. The etiology for the neuropathy was likely to be multifactorial and may be secondary to PD itself. [ABSTRACT FROM AUTHOR]
- Subjects :
- PERIPHERAL neuropathy
PARKINSON'S disease patients
NEUROLOGIC examination
NEURAL conduction
ELECTROMYOGRAPHY
DIABETES complications
MYONEURAL junction
DRUG therapy for Parkinson's disease
SKIN innervation
AGE distribution
DOPA
ANTIPARKINSONIAN agents
AUTONOMIC nervous system
AUTONOMIC nervous system diseases
COMPARATIVE studies
NEUROPSYCHOLOGICAL tests
RESEARCH methodology
MEDICAL cooperation
RESEARCH
EVALUATION research
PARKINSONIAN disorders
PHYSIOLOGY
THERAPEUTICS
Subjects
Details
- Language :
- English
- ISSN :
- 14712377
- Volume :
- 16
- Database :
- Complementary Index
- Journal :
- BMC Neurology
- Publication Type :
- Academic Journal
- Accession number :
- 117516166
- Full Text :
- https://doi.org/10.1186/s12883-016-0667-3