Clinical Autonomic Research

, Volume 7, Issue 6, pp 311–314

Sympathetic cardiovascular dysfunction in long-standing idiopathic Parkinson's disease

  • D. Linden
  • R. R. Diehl
  • P. Berlit
Research Paper

DOI: 10.1007/BF02267723

Cite this article as:
Linden, D., Diehl, R.R. & Berlit, P. Clinical Autonomic Research (1997) 7: 311. doi:10.1007/BF02267723

Abstract

Standard autonomic tests (heart rate response to deep breathing-HRdb, heart rate and systolic blood pressure response to tilt-ΔHR and ΔSBP) and spectral analysis of heart rate and arterial blood pressure and their transfer function (for the mid-frequency band a measure of baroreflex sensitivity) were performed in 20 patients with idiopathic Parkinson's disease (IPD) and 20 age-matched controls. Patients showed significantly diminished ΔSBP, and reduced sympathetic vasomotor and cardiomotor outflow (diminished Mayer waves), consistent with an alteration of the efferent arc of the baroreflex. These results were only significant in long-standing IPD (IPD-1, >5 years), whereas patients with short disease duration (IPD-s, <5 years) showed values comparable to controls. Respiratory-related heart rate variability was slightly reduced in IPD-1 but this was mainly due to diminished respiratory effort, indicated by low respiratoryrelated blood pressure variability. We conclude that autonomic abnormalities are only present in long-standing IPD and consist in reduced sympathetic vasomotor and cardiomotor outflow.

Key words

idiopathic Parkinson's diseasesympathetic dysfunctionautonomic evaluationspectral analysisbaroreflex

Copyright information

© Rapid Science Publishers 1997

Authors and Affiliations

  • D. Linden
    • 1
  • R. R. Diehl
    • 1
  • P. Berlit
    • 1
  1. 1.Autonomic Laboratory, Department of Neurology and Clinical NeurophysiologyAlfried Krupp HosptialEssenGermany