Related Experiment Videos
Cardiovascular reflexes in Parkinson disease
R Martín1, R Manzanares, J M Moltó
1Neurological Department, Hospital Virgen de los Lirios, Alcoy, University of Alicante, Spain.
Italian Journal of Neurological Sciences
|September 1, 1993
Summary
Parkinson disease (PD) patients exhibit significant autonomic dysfunction, evidenced by impaired cardiovascular reflexes. This autonomic dysfunction was observed regardless of antiparkinsonian therapy and was more prevalent in older patients.
Area of Science:
- Neurology
- Autonomic Neuroscience
Background:
- Parkinson disease (PD) is a neurodegenerative disorder.
- Autonomic dysfunction is a common non-motor symptom in PD.
- Understanding the extent of autonomic involvement is crucial for patient management.
Purpose of the Study:
- To investigate autonomic function in Parkinson disease patients.
- To compare cardiovascular reflexes in PD patients and healthy controls.
- To assess the impact of antiparkinsonian therapy on autonomic function.
Main Methods:
- Cardiovascular reflex testing was performed on 95 PD patients and 53 healthy volunteers.
- Tests included heart rate response to deep breathing and standing, and blood pressure response to handgrip.
- Autonomic function was categorized into sympathetic, parasympathetic, or global involvement patterns.
Main Results:
- PD patients showed significantly reduced heart rate responses to deep breathing and standing, and a smaller blood pressure rise during handgrip compared to controls.
- A higher percentage of PD patients exhibited sympathetic lesions or atypical global autonomic dysfunction.
- No significant differences in cardiovascular performance were found between treated and untreated PD patients.
- Patients with autonomic impairment were older than those with normal autonomic function.
Conclusions:
- Parkinson disease patients demonstrate true autonomic dysfunction.
- Autonomic dysfunction in PD involves impaired cardiovascular reflexes.
- Age is a factor associated with autonomic impairment in Parkinson disease.