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. 2017 Apr-Jun;10(2):80-86.
doi: 10.5935/1984-0063.20170015.

Heart rate variability in restless legs syndrome and periodic limb movements of Sleep

Daniel A Barone  1 , Matthew R Ebben  1 , Miles DeGrazia  1 , David Mortara  2 , Ana C Krieger  1
Affiliations

Heart rate variability in restless legs syndrome and periodic limb movements of Sleep

Daniel A Barone et al. Sleep Sci. 2017 Apr-Jun.

Abstract

Introduction: The relationship between the autonomic nervous system and restless legs syndrome (RLS) and periodic limb movements of sleep (PLMS) consists of varied and somewhat conflicting reports. In order to further elucidate these complexities, a retrospective analysis of polysomnography (PSG) records and clinical data was performed.

Methods: Records from 233 adult subjects were randomly selected and organized into one of four groups ("non-RLS/PLMS" [n=61], "RLS" [n=60], "PLMS" [n=58], and "RLS/PLMS" [n=54]). Heart rate variability (HRV) analysis was based on 5-minute samples of 2-lead electrocardiogram data isolated from PSG recordings during wakefulness and NREM sleep, and included mean RR interval (labeled "NN") and standard deviation of the RR intervals (labeled "SDNN"), and HRV power, very low frequency (VLF), low frequency (LF), and high frequency (HF) spectral bands.

Results: A significant reduction in the VLF band in the PLMS group as compared to the non-RLS/PLMS group (542±674 vs. 969±1025 ms2, p=0.038) was found in wakefulness. Statistically significant differences were seen in the PLMS group as compared to the non-RLS/PLMS group with a reduction in SDNN (p=0.001) and the HF (p=0.001) band, and an increase in HRV power (p=0.001), and the VLF (p=0.005) and LF (p=0.001) bands in NREM sleep.

Conclusions: The PLMS group exhibited reduced basal sympathetic activity in wakefulness, but basal sympathetic predominance during NREM sleep, distinguishing this group from the RLS and RLS/PLMS groups.

Keywords: Autonomic Nervous System; Heart Rate; Polysomnography; Restless Legs Syndrome; Sleep.

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Figures

Figure 1
Figure 1
Flow chart for PSG records chosen for analysis. RLS=restless legs syndrome; PLMS=periodic limb movements of sleep.
See this image and copyright information in PMC

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References

    1. American Academy of Sleep Medicine . International Classification of Sleep Disorders. 3rd ed. Darien: American Academy of Sleep Medicine; 2014. International classification of sleep disorders.
    1. Kleiger RE, Stein PK, Bigger JT., Jr Heart rate variability: measurement and clinical utility. Ann Noninvasive Electrocardiol. 2005;10(1):88–101. - PMC - PubMed
    1. Cikrikcioglu MA, Hursitoglu M, Erkal H, Kinas BE, Sztajzel J, Cakirca M, et al. Oxidative stress and autonomic nervous system functions in restless legs syndrome. Eur J Clin Invest. 2011;41(7):734–742. - PubMed
    1. Izzi F, Placidi F, Romigi A, Lauretti B, Marfia GA, Mercuri NB, et al. Is autonomic nervous system involved in restless legs syndrome during wakefulness. Sleep Med. 2014;15(11):1392–1397. - PubMed
    1. Manconi M, Ferri R, Zucconi M, Clemens S, Rundo F, Oldani A, et al. Effects of acute dopamine-agonist treatment in restless legs syndrome on heart rate variability during sleep. Sleep Med. 2011;12(1):47–55. - PubMed