Background: Parkinson's disease (PD) is a neurodegenerative disease perceived as a motor disorder. It is most commonly associated with autonomic dysfunction, affecting multiple systems. This altered autonomic control might be reflected by a parallel change in the airway caliber of these patients.
Aim: To correlate the pulmonary impairment in patients with Parkinson's disease with the underlying dysautonomia.
Materials And Methods: A total of 30 patients with Parkinson's disease participated in the study. Heart rate (HR) variability was recorded for 5 min to assess the autonomic dysfunction, followed by impulse oscillometry (IOS) and spirometry. IOS being an effort independent technique uses sound waves at different frequencies (5-25 Hz) to measure the airway impedance.
Results: There was a significant decrease in SDSD (6.60 (10.18-6.01) vs. 12.22 (13.95-11.30); = 0.04), RMSSD (6.59 (10.17-5.50) vs. 12.20 (13.93-11.28); = 0.04), and total power (315.8 (506.3-120.7) vs. 771.3 (799.0-643.6); = 0.04) in stage II as compared to stage I. Resistance at 20 Hz (R20) was found to be positively correlated with SDSD (r = 0.40, = 0.04), RMSSD (r = 0.40, = 0.04), and HF (r = 0.41, = 0.03).
Conclusion: Amongst the PD population, any changes in the parasympathetic component (responsible for bronchoconstriction) due to the underlying dysautonomia might be reflected as increased airway resistance in the pulmonary system.
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| http://dx.doi.org/10.4103/aian.aian_940_21 | DOI Listing |
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