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. 2018 Oct;59(10):539-544.
doi: 10.11622/smedj.2018010. Epub 2018 Jan 26.

Patients with primary restless legs syndrome have higher prevalence of autonomic dysfunction and irritable bowel syndrome

Bilgehan Atılgan Acar  1 , Mustafa Atahan Gürkan Acar  2 , Türkan Acar  3 , Ceyhun Varım  4 , Aybala Neslihan Alagöz  1 , Enis Bekir Demiryürek  3 , Belma Doğan Güngen  3 , Yeşim Güzey Aras  3
Affiliations

Patients with primary restless legs syndrome have higher prevalence of autonomic dysfunction and irritable bowel syndrome

Bilgehan Atılgan Acar et al. Singapore Med J. 2018 Oct.

Abstract

Introduction: Given the limited data on autonomic dysfunction in patients with primary restless legs syndrome (pRLS), we compared autonomic dysfunction and presence of irritable bowel syndrome (IBS) between patients with pRLS and control patients.

Methods: Consecutive adult drug-naïve patients with pRLS, and age- and gender-matched healthy control patients were enrolled in this study. Diagnoses, based on validated self-reported questionnaires, were made using the following guidelines: Rome III classification system for functional gastrointestinal disorders for IBS; Beck Anxiety Inventory (BAI) and Beck Depression Inventory (BDI) for the presence of anxiety and depression, respectively; Pittsburgh Sleep Quality Index (PSQI) for severity of sleep disturbances; and Scales for Outcomes in Parkinson's disease-Autonomic (SCOPA-AUT) for autonomic dysfunction.

Results: There were 88 patients with pRLS (18 male, 70 female) and 128 control patients (40 men, 88 women). The mean age of the pRLS patients and control patients was 50.3 ± 9.3 years and 49.7 ± 8.2 years, respectively. Overall, 41 (46.6%) of the patients with pRLS and 16 (12.5%) of the control patients had IBS. Among patients with pRLS, IBS was significantly more common and the total autonomic SCOPA-AUT scores were higher than those found among control patients. Among pRLS patients with IBS, total autonomic SCOPA-AUT, PSQI, BAI and BDI scores were significantly higher than among pRLS patients without IBS. The presence of IBS did not affect the severity of restless legs syndrome.

Conclusion: The presence of autonomic nervous system impairment in patients with pRLS and the strong link between IBS and pRLS merit further, more extensive investigation.

Keywords: IBS; RLS; SCOPA-AUT; autonomic dysfunctions.

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Figures

Fig. 1
Fig. 1
Flowchart shows the screening process for patients with pRLS. BAI: Beck Anxiety Score; BDI: Beck Depression Score; ENMG: electroneuromyography; IBS: irritable bowel syndrome; IRLSSG-RS: International Restless Legs Syndrome Study Group Rating Scale; MMSE: Mini-Mental State Examination; pRLS: primary RLS; PSQI: Pittsburgh Sleep Quality Index; RLS: restless legs syndrome; SCOPA-AUT: Scales for Outcomes in Parkinson’s disease-Autonomic
Fig. 2
Fig. 2
Flowchart shows the screening process for control subjects. BAI: Beck Anxiety Score; BDI: Beck Depression Score; ENMG: electroneuromyography; IBS: irritable bowel syndrome; MMSE: Mini-Mental State Examination; pRLS: primary restless legs syndrome; PSQI: Pittsburgh Sleep Quality Index; SCOPA-AUT: Scales for Outcomes in Parkinson’s disease-Autonomic
See this image and copyright information in PMC

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