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Updated: Jul 25, 2026

Quantitative Autonomic Testing
Published on: July 19, 2011
[Autonomic nervous system dysfunction in Parkinson's disease evaluated by the heart rhythm variability test]
A Krygowska-Wajs1, H Grabowska-Maślanka, S Tabor
1Klinika Neurologii Collegium Medicum UJ.
Abstract:
It is well recognized that autonomic dysfunction are common in Parkinson's disease (PD). Fourteen patients with early PD and 8 patients with advanced PD aged from 38-71 were investigated. Heart rate variability at rest differ significantly between patients with advanced PD and age-matched controls. Cardiovascular autonomic dysfunction in PD mainly affects parasympathetic but also sympathetic system, and occurs only in advanced cases. Heart rate variability is a useful non-invasive test to assess autonomic dysfunction in PD.
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