Related Experiment Videos
Does fatigue in Parkinson's disease correlate with autonomic nervous system dysfunction?
Enrica Olivola1,2, Livia Brusa3, Camilla Rocchi1
1UOSD Parkinson's Center, Department of Systems Medicine, University of Rome "Tor Vergata", Viale Oxford, 81, 00133, Rome, Italy.
Summary
Fatigue in Parkinson's disease (PD) is linked to disease duration and autonomic nervous system function, specifically impaired deep breathing responses. This suggests multifactorial causes, not solely sympathetic denervation, contribute to PD fatigue.
Area of Science:
- Neurology
- Neuroscience
- Movement Disorders
Background:
- Fatigue significantly impacts Parkinson's disease (PD) patients' quality of life.
- The underlying pathology of PD-related fatigue is not well understood.
- Fatigue is an under-recognized symptom in PD.
Purpose of the Study:
- To investigate the pathogenesis of fatigue in cognitively intact Parkinson's disease patients.
- To explore the association between fatigue, disease duration, and autonomic dysfunction in PD.
Main Methods:
- Evaluated 27 Caucasian Parkinson's disease patients using the PFS-16 fatigue scale.
- Assessed autonomic dysfunction via MIBG scintigraphy and autonomic nervous system testing (head-up tilt, Valsalva, deep breathing, handgrip).
- Correlated fatigue scores with PD duration and autonomic function test results.
Main Results:
- Fatigue (PFS-16 score) showed a significant correlation with Parkinson's disease duration (R=0.57, p=0.002).
- Fatigue was strongly associated with impaired deep breathing test results (R=-0.53, p=0.004).
- No significant correlation was found between fatigue and MIBG heart-to-mediastinal ratios.
Conclusions:
- Parkinson's disease-related fatigue likely has a multifactorial pathogenesis.
- Dopamine depletion may contribute to fatigue in PD.
- Sympathetic denervation does not appear to play a significant role in PD-related fatigue.