Autonomic nervous activity during sleep in middle cerebral artery infarction

Cerebrovascular Diseases
F GiubileiC Fieschi

Abstract

No data are available on the autonomic system during sleep in patients with stroke. The purpose of this study was to determine the influence of acute ischemic stroke on the autonomic cardiovascular system during sleep, and to correlate autonomic activity with the clinical status of patients. Ten patients with ischemic stroke in the middle cerebral artery were studied by means of an all-night polysomnographic recording within the 1st week of the onset of symptoms and at the 3-week follow-up examination. Power spectrum analysis of the heart rate variability was performed using an autoregressive algorithm in 180 consecutive electrocardiographic RR intervals. Spectral power was calculated in 3 main frequency bands: high frequency (HF), 0.15-0.4 Hz; low frequency (LF), 0.04-0.15 Hz; very low frequency (VLF), < 0.04 Hz. The data were compared with those of 10 age-matched controls. A significant increase in VLF (p < 0.0005) and a decrease in HF (p < 0.0002) components were found in ischemic stroke patients. The sympathetic-parasympathetic balance (VLF + LF/HF) was higher in patients than controls (p < 0.005). However, these components changed significantly during sleep, revealing a physiological pattern. These power spectral data were...Continue Reading

Citations

Feb 16, 2006·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·Stephen Oppenheimer
Jun 1, 2002·Journal of the Neurological Sciences·Elisabeth LambertGavin Lambert
Aug 7, 2012·Journal of Neurosciences in Rural Practice·As Praveen KumarDk Subrahmanyam
Dec 30, 2014·Journal of the Neurological Sciences·Sylvie De RaedtJacques De Keyser
Mar 8, 2003·Stroke; a Journal of Cerebral Circulation·Thompson G RobinsonJohn F Potter
Jun 14, 2019·Journal of Sleep Research·Eleonora TobaldiniClaudio L Bassetti
May 3, 2020·The Neurologist·Victor ConstantinescuDan I Cuciureanu

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