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Published on: January 7, 2019
Tremors in early Parkinson's disease
W C Koller1, B Vetere-Overfield, R Barter
1Department of Neurology, University of Kansas Medical School, Kansas City.
Clinical Neuropharmacology
|August 1, 1989
Summary
Resting and postural tremors are key Parkinson's symptoms. Both tremors share similar frequencies and respond similarly to early-stage Parkinson's disease medications.
Area of Science:
- Neurology
- Movement Disorders
- Clinical Neurophysiology
Background:
- Parkinson's disease (PD) is a neurodegenerative disorder characterized by motor symptoms, including tremor.
- Tremor is a common and often disabling symptom in PD, affecting patients' quality of life.
Purpose of the Study:
- To investigate the characteristics and pharmacological response of resting and postural tremors in untreated Parkinson's disease patients.
- To compare the amplitude, frequency, and drug responsiveness of different tremor types in early PD.
Main Methods:
- Utilized accelerometry to objectively measure tremor amplitude and frequency in 50 untreated PD patients.
- Assessed the presence and type of tremor (resting, postural, kinetic) in all participants.
- Evaluated the effect of carbidopa/levodopa and naxoglide (PHNO) on tremor reduction.
Main Results:
- Postural tremor was observed in 92% and resting tremor in 76% of patients.
- Resting and postural tremors exhibited similar average frequencies.
- Naxoglide (PHNO) demonstrated greater efficacy in reducing both resting (77%) and postural (70%) tremors compared to carbidopa/levodopa.
Conclusions:
- Resting and postural tremors are integral components of early Parkinson's disease.
- These tremors share similar frequency characteristics and pharmacological responsiveness to dopaminergic medications.
- Understanding tremor subtypes and their response to medication is crucial for effective PD management.
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