Restless Legs Syndrome Severity Research Articles

Restless Leg Syndrome in Patients with Liver Cirrhosis! Its Frequency, Severity, and Correlation.

Restless leg syndrome (RLS) has been recognized as a typical additional manifestation among patients with cirrhosis of the liver. RLS prevalence in liver cirrhosis further worsens the quality of life, which has already been compromised with the disease-related complications of cirrhosis itself. The study aimed to determine the frequency and severity of Restless Leg Syndrome (RLS) among patients with cirrhosis of the liver and to correlate its severity with the severity of cirrhosis. This prospective cross-sectional study was carried out at Ruth K.M. Pfau Civil Hospital (Karachi, Pakistan) from December 2019 to February 2020. Three hundred and fifteen cirrhotic patients with any etiology were included in the study after informed written consent. Restless leg syndrome with its severity was determined in all cirrhotic patients. For continuous variables, means and medians with standard deviations were calculated, while percentages and proportions were used for discrete variables. Spearman correlation was used to find significance between RLS Severity Score (RSS) and Model of End-stage Liver Disease MELD Score. A p value of < 0.05 was considered significant for all analyses. The frequency of RLS among cirrhotic patients was 38.4%. More than half (54.5%) of the patients had severe RLS. Viral related hepatitis C and hepatitis B were the most common cause of cirrhosis of the liver (57.8% and 30.8%). A significant difference was found between as patients both with or without RLS in terms of age (p=0.003), gender (p=0.005), hemoglobin (p=0.00), and serum albumin (p=0.01). No significant association was found between RLS severity score and MELD Score (p=0.693). Prevalence of RLS is very high among cirrhotic patients, but no correlation was found between the severity of RLS and cirrhosis. Further studies should be carried out to assess the quality of life in cirrhotic patients having RLS.

Association of Decreased Serum BDNF With Restless Legs Syndrome in Parkinson's Disease Patients.

Objective: To objective of the study was to investigate whether serum brain-derived neurotrophic factor (BDNF) levels are associated with the severity of restless legs syndrome (RLS) in Parkinson's disease (PD).Methods: A total of 249 PD patients with (n = 53) and without RLS (n = 196) and 326 age-matched controls were included in this study. All the serum BDNF levels of the participants were measured. The International Restless Legs Syndrome Study Group Rating Scale (IRLSSG-RS) was administered for the severity of RLS. The severity of PD patients were assessed by the Unified PD Rating Scale (UPDRS) and the Hoehn and Yahr (H-Y) stage.Results: The prevalence of RLS was significantly higher in PD patients (21.3%) than in the controls group (7.4%) (p < 0.05). The IRLSSG-RS score in PD patients with RLS (16.25 ± 5.24) was significantly increased than in controls with RLS (12.08 ± 3.99) (p < 0.01). The serum BDNF levels were significantly decreased in PD patients with RLS than in PD patients without RLS, controls without RLS, and controls with RLS (p < 0.001). BDNF levels were negatively associated with IRLSSG-RS in both PD patients with RLS and controls with RLS group (both p < 0.01). Multiple regression analysis confirmed that in either PD with RLS or controls with RLS group, BDNF was an independent contributor to IRLSSG-RS (both p < 0.01).Conclusions: Decreased serum BDNF levels may be involved in the pathophysiology of RLS in PD, suggesting that it may serve as a potential blood biomarker of diagnostic value for RLS in PD.

Aromatherapy Massage vs. Foot Reflexology on the Severity of Restless Legs Syndrome in Female Patients Undergoing Hemodialysis.

This study aimed to compare the effects of reflexology and aromatherapy massage on the severity of restless legs syndrome (RLS) in 105 female patients undergoing hemodialysis. A randomized placebo-controlled clinical trial was conducted in a hemodialysis center with 48 beds in a high turnover hospital in an urban area of Iran. Intervention groups received reflexology (n = 35) and aromatherapy massage using lavender essential oil (n = 35) for 24 sessions, and the placebo group (n = 35) received simple foot massage. The restless legs syndrome rating scale was used to assess RLS severity in the groups before the intervention and after 4 and 8 weeks of the interventions. Results obtained by the mixed model analysis 3 * 3 (3 groups * 3 times) revealed the significant effect of time, group, and the time–group interrelationship (p = 0.001). Aromatherapy massage reduced the RLS severity, but reflexology did not appear to cause any significant reduction in it. Therefore, we suggest that aromatherapy massage be incorporated into routine care for relieving the ailment and suffering of patients undergoing hemodialysis.

S865 Prevalence and Association of Restless Leg Syndrome, Depression and Anxiety in Patients With Inflammatory Bowel Disease

Introduction: Inflammatory bowel disease (IBD) is associated with many extraintestinal manifestations. Restless leg syndrome (RLS) is considered to be one of the neurological manifestations seen in IBD. There is limited data available regarding the RLS in the setting of IBD. We aimed to evaluate the prevalence of RLS, as well as concurrent anxiety and depression in patients with IBD. Methods: Patients having IBD were prospectively enrolled in the study from years 2017-2020 at outpatient clinics of our institution. Patients were screened for RLS, depression and anxiety. The severity of RLS was determined by using the international RLS study group rating scale. Beck depression and anxiety inventories were used to evaluate the severity of depression and anxiety. Patients with iron deficiency anemia and those are on anxiolytic and antidepressant medications were excluded. Laboratory and clinical data were obtained. All patients provided informed consent. Results: A total of 194 patients were included in the study (102 male, 92 female; mean age: 42.3 ±13.5). Of those, 76 (39.2%) had ulcerative colitis (UC) and 118 (60.8%) had Crohn’s disease (CD). IBD was present for a mean of 10.19 ±6.4 years at the time of the enrollment. In patients with CD, 46.3% had fistulizing CD, 41.6% had history of surgical operation and 33% had perianal involvement. Ninety-one (46.9%) patients with IBD were found to have RLS. Of those, 54 (45.8%) had CD and 37 (59.3%) had UC. Of 91 patients with RLS, 59 (64.8%) were female and 32 (35.2%) were male (p< 0.001). Hundred and eighty-seven patients were screened for depression, 58 (31%) patients had depression. Of those with depression, 37 (63.9%) were female and 21 (36.2%) were male (p=0.004). Hundred and fifty-six patients had anxiety, 92 (59%) were male and 64 (41%) were female (p< 0.001). The severity of anxiety was classified as mild, moderate and severe. In males, the severity was mild in 92.9%, moderate 7.1% and severe 0%, in females 71.9%, 24.7% and 3.4% of patients, respectively.Mean scores for RLS severity rating, Beck depression and anxiety inventory scores were shown in Table 1. Patients with CD with perianal involvement were more likely to have depression (46.9% vs 23.4%, p=0.034). Conclusion: RLS, depression and anxiety were found to be a common comorbid conditions in patients with IBD. Perianal involvement in CD should alert for the presence of depression. Screening for those conditions is important in implementing the treatment timely and to improve the quality of life.Table 1.: Clinical and laboratory characteristics of study patients (n=194).

Involvement of central sensory pathways in subjects with restless legs syndrome: A neurophysiological study

In patients with restless legs syndrome (RLS) a motor cortical disinhibition has been reported in transcranial magnetic stimulation (TMS) studies, but the neuronal excitability in other cortical areas has been poorly explored. The aim of this study was the functional evaluation of thalamo-cortical circuits and inhibitory cortical responses in the sensory cortex in RLS.We assessed the high-frequency somatosensory evoked potentials (HF-SEP) in sixteen subjects suffering from RLS of different degrees of severity.In patients with severe or very severe RLS we found a significant desynchronization with amplitude reduction of both pre- and post-synaptic HF-SEP bursts, which suggest an impairment in the thalamo-cortical projections and in the cortical inhibitory interneurons activity, respectively.The assessment of the central sensory pathways by means of HF-SEP may shed light on the pathophysiological mechanisms of RLS.

Restless Legs Syndrome among patients receiving antipsychotic and antidepressant drugs.

Patients with Restless Legs Syndrome (RLS) experience psychological distress and diminished quality of life. Antipsychotics and antidepressants are known to be linked to RLS. This study aims to investigate the presence of RLS in psychiatric patients who receive antipsychotic and antidepressant drugs and to determine potential risk factors for its occurrence. Two hundred patients who received antipsychotic and antidepressant drugs for more than 1 month were recruited from two tertiary psychiatric centers in Cairo, Egypt. One hundred apparently healthy volunteers were also included. All patients and controls were screened using the four-items questionnaire (Arabic version) for RLS. RLS severity was scored according to the validated Arabic version of International Restless Legs Syndrome Study Group rating scale (IRLS). Mimicking conditions were carefully investigated and excluded. Forty-one percent of the patients who receive antipsychotic and antidepressant drugs were found to have RLS. Family history, past history and smoking are potential risk factors. Trazodone and haloperidol were less associated with RLS. Although limited by its cross-sectional design, these findings suggest that patients who receive antipsychotic and antidepressant are susceptible to RLS. However, these results need to be replicated on a wider scale.

The effectiveness of short-term cognitive behavioral therapy in the complex treatment of idiopathic restless legs syndrome with chronic insomnia

Aim. To investigate the effectiveness of the short-term protocol of cognitive behavioral therapy RELEGS M. Hornyak et al. in complex treatment to improve the quality of sleep, reduce the symptoms of depression, anxiety, suicidal thoughts in patients with primary SBN comorbid with chronic insomnia.&#x0D; Methods. Study participants: 68 patients with primary restless legs syndrome with comorbid chronic insomnia. Women 56 (average age 52.110.3 years), men 12 (average age 50.39.4 years). The severity of restless legs syndrome is moderate to severe. The average age of the onset of the disease is 1848 years, the duration of the course of the disease is on average 1415 years. Taking various medications for the management of SBN for an average of 45 years. Study design: a randomized controlled trial, after screening 26 patients were assigned to the main group, underwent combined treatment, took a prolonged form of Pramipexole (Mirapex-PD, 1.5 mg.) and underwent the RELEGS CBT protocol (Restless Legs Skills program, Hornyak, Grossmann, 2018), which integrates the cognitive behavioral insomnia protocol (Morin, 2007) and Mindfulness-Based Stress therapy (Mindfulness-Based Stress Reduction, Bablas, 2016). The control group consisted of 24 people who received only general recommendations on sleep hygiene once. Both groups were treated with dopaminergic agonists under the supervision of a neurologist. Research methods: IRLS, ISI, DBAS-16, sleep diary analysis, actigraphy, BDI, SBQ-R, BAI.&#x0D; Results. The use of the CBT protocol in combination therapy with prolonged-acting dopaminergic agonists in patients with primary restless leg syndrome (mild and moderate severity) with comorbid chronic insomnia, in contrast to simple one-time general recommendations on sleep hygiene, is more effective for reducing dysfunctional behaviors, the spectrum of reinsurance and avoidance behavior both in relation to sleep and symptoms of restless legs. In patients with primary restless legs syndrome who underwent CBT, greater mental well-being was observed, which was expressed in a decrease in the severity of symptoms of insomnia, anxiety, and suicidal behavior after completion and persisted after 3 months of follow-up.&#x0D; Conclusion. As part of a personalized comprehensive approach, along with a drug-based approach and general recommendations for sleep hygiene, the use of short-term CBT (4 sessions, 60 minutes each) can significantly improve mental well-being, improve the quality of sleep of patients with restless legs syndrome with comorbid chronic insomnia.

Cross-Sectional Design: Link Between Parkinson's Pain and Restless Leg Syndrome.

Prior research suggests that restless leg syndrome (RLS) is prevalent in Parkinson's disease (PD) with insufficient evidence to support the relationship between RLS, PD, and pain. This study explored the relationship between pain in PD patients and its association with the prevalence and severity of RLS. 127 PD patients were assessed for PD and RLS using the U.K. Brain bank Criteria and the Restless Leg Syndrome diagnostic criteria, respectively. These patients were also assessed for pain perception and interference using the Brief Pain Inventory. The results demonstrated Parkinson's disease patients who reported pain scored 23 more Restless Leg Syndrome prevalence points (p < 0.05), and 8.5 counts higher for Restless Leg Syndrome severity (p < 0.05) compared to the group of Parkinson's disease patients denying pain. The presence of pain in PD patients indicated a higher RLS prevalence and an increased RLS severity. This finding suggests patients suffering from pain interference may experience more severe RLS symptoms. This demonstrates an inextricable link and association between pain in PD patients and RLS. Further robust investigations are required to elucidate any potential causative links, which can inform more holistic treatment principles.

The relationship between sleep disorders, anxiety, depression, and cognitive function with restless legs syndrome (RLS) in the elderly.

Restless legs syndrome (RLS) has a significant effect on sleep and quality of life. Delays in diagnosis and treatment are frequent due to a lack of awareness. In this study, a clinical analysis was performed to examine the relationship between sleep, mood, and cognitive function in RLS. According to the Pittsburgh Sleep Quality Index score (PSQI), patients with RLS were divided into a sleep disorders group (SD, PSQI > 7) and non-sleep disorders group (NSD, PSQI ≤ 7). Healthy controls were selected as a control group matched for age, cultural background, and marital status. We compared differencesbetween the three groups using the Hamilton Anxiety Scale (HAMA), Hamilton Depression (HAMD), Mini-Mental State Examination (MMSE), and Montreal Cognitive Assessment (MoCA). The SD and NSD groups were also assessed with the Restless Leg Syndrome Rating Scale (RLSRS) and the severity of RLS between the two groups was compared. The analysis used t-test, ANOVA, and Pearson correlation. (1) Among the 54 RLS patients, 30 people in the control group, 35 patients with sleep disorders (SD, 65%), and 19 patients without sleep disorders (NSD, 35%), there were no significant differences in age, educational level, marital status, or trauma history. (2) The comparison results of the case group (SD and NSD) and the control group showed highly significant differences (P < 0.01) in the PSQI-HAMA-HAMD score but no significant differences between the NSD group, the SD group, and the control group in MMSE score. There was no difference between the NSD group and the control group in the MoCA, but a significant difference (P < 0.05) between the SD group and the control group was found. (3) The comparison between the NSD and the SD groups revealed significant differences in the RLSRS, HAMA, and HAMD scores (P < 0.05), but there were no statistical differences (P > 0.05) between two groups on MMSE and MoCA score. (4) Correlation and regression showed that there was a linear correlation between PSQI scores and RLSRS and HAMD scores in patients with RLS (P < 0.05). The regression equation was PSQI = - 2.393 + 0.494 RLSRS + 0.170 HAMD. RLS patients were prone to sleep disorders, anxiety, and depression. Sleep disorders increased with the severity of the RLS and had some influence on the patient's cognitive function. Sleep disorders were closely related to RLSRS and HAMD.

P–306 Premenopausal women with a diagnosis of endometriosis have a significantly higher prevalence of a diagnosis or symptoms suggestive of restless leg syndrome; prospective cross-sectional study

Abstract Study question Are women who report a previous surgical diagnosis of endometriosis more likely to have a diagnosis or symptoms suggestive of restless leg syndrome (RLS)? Summary answer: Women who reported a prior surgical diagnosis of endometriosis, have a significantly higher prevalence of prior formal diagnosis of RLS or symptoms suggestive of RLS. What is known already Endometriosis and RLS are both chronic conditions that can negatively affect a woman’s quality of life. A higher prevalence of RLS is seen in women and particularly in those who are pregnant, suggesting a possible ovarian hormonal influence. Endometriosis is a common (affecting 1 in 10 women) oestrogen driven gynaecological condition, and the prevalence of RLS in women with symptoms or a diagnosis of endometriosis is unknown. Study design, size, duration This was a prospective, cross-sectional, observational self-completed questionnaire study. Questionnaires were distributed to 650 women under 50 years of age attending the gynaecology out patient’s department at the Liverpool Women’s hospital from October 2017 to January 2018. Participants/materials, setting, methods 584 women returned the voluntary, anonymous questionnaires, which assessed RLS-associated (The International Restless Leg Syndrome Study Group rating scale) and endometriosis-associated (modified-British Society of Gynaecological Endoscopists pelvic pain questionnaire) symptoms. The final dataset included 465 completed questionnaires. Main results and the role of chance The overall response rate for this study was high (90%, 584/650). Women who reported a prior surgical diagnosis of endometriosis had a greater risk of having a prior formal diagnosis of RLS (OR 4.82, 95% CI 1.66,14.02) and suffering RLS symptoms (OR 2.13, 95% CI 1.34–3.39) compared with those without a diagnosis. Women with either a formal diagnosis or symptoms associated with endometriosis have a significantly increased risk of having either a formal diagnosis or symptoms suggestive of RLS (OR 2.49, 95% CI 1.30, 3.64). In women suffering with endometriosis-associated symptoms, the cumulative endometriosis-associated symptom scores demonstrated a modest positive correlation with RLS severity scores (r = 0.42 95% CI 0.25 to 0.57). Limitations, reasons for caution The anonymous, voluntary self-completed questionnaire findings were not confirmed directly using medical records. However, our questionnaire that was piloted for acceptability prior to the study, allowed collation of information directly from women, regarding their clinically relevant symptoms that are important in diagnosing RLS. Wider implications of the findings: This is the first study highlighting an association between the symptoms relevant to these two chronic conditions, which may help in facilitating the discovery of novel therapeutic targets relevant to both. The simultaneous treatment of these conditions could potentially lead to improvement in overall quality of life for these women. Trial registration number NA

Discrepancies between self-reported and device-measured sleep parameters in adults with multiple sclerosis.

Sleep problems are a common consequence of multiple sclerosis; however, there is limited evidence regarding the agreement between device-measured and self-reported sleep parameters in adults with multiple sclerosis. The present study examined the agreement between self-reported and device-measured parameters of sleep quality in a sample of adults with multiple sclerosis. Participants (n = 49) completed a 7-day sleep diary and wore a wrist-worn ActiGraph GT3×+ (ActiGraph Corp., Pensecola, FL) for seven consecutive nights to quantify self-reported and device-measured sleep parameters, respectively. There was a significant discrepancy between self-reported and device-measured parameters of total time in bed (mean difference = 19.8 [51.3] min), sleep onset latency (mean difference = 22.2 [19.5] min), and frequency of awakenings during the night (mean difference = 12.8 [6.8]). Intraclass correlation estimates indicated poor agreement between methods on most parameters, except for total time in bed (intraclass correlation = 0.80). Bland-Altman plots suggested that total time in bed and total sleep time had acceptable levels of agreement and linear regression analyses indicated that sleep onset latency (F = 113.91, B = -1.34, P < .001), number of awakenings (F = 543.34, B = 1.85, P < .001), and sleep efficiency (F = 18.39, B = -0.77, P < .001) had significant proportional bias. Our results draw attention to the discrepancies between sleep parameter measurements and highlight the importance of including both self-report and device-measured outcomes for a complete and accurate representation of sleep in adults with multiple sclerosis. Cederberg KLJ, Mathison BG, Schuetz ML, Motl RW. Discrepancies between self-reported and device-measured sleep parameters in adults with multiple sclerosis. J Clin Sleep Med. 2022;18(2):415-421.

Severe restless legs syndrome in a family with Alport syndrome

BackgroundRestless legs syndrome (RLS) is a common sleep-related movement disorder characterized by an urge to move the legs during inactivity, especially at evening-night. RLS is highly prevalent in patients with kidney failure and have an impact on quality of life, mood, sleep quality and overall on compliance to the dialysis. Alport syndrome (AS) is a rare inherited disease, predominantly X-linked, secondary to mutations in genes encoding α3, α4 or α5 chains of type IV collagen, and characterized by hematuria, chronic kidney disease, neurosensory deafness, and lenticonus.Case presentationHere we describe a family with a combination of X-linked AS and severe RLS accompanied by periodic limb movements during sleep (PLMS). In the first patient we identified, RLS was complicated by a paradoxical response to dopamine agonists named “augmentation”, leading to sleep disruption, hallucinations and five peritoneal perforations during the peritoneal dialysis due to the difficulty to rest still. Therapeutic adjustments and renal transplantation improved RLS and PLMS. In two brothers, severe RLS prevented a compliance with hemodialysis. Female family members carrying the mutation were also affected by RLS, while those without the mutations were RLS-free.ConclusionsRLS has not been reported earlier in association with AS, but the peculiar combinations observed in this family will stimulate further clinical studies and motivate nephrologists to seek for RLS symptoms and sleep disturbances in AS patients.

Validity and reliability of the suggested immobilization test for measurement of restless legs syndrome severity in adults with multiple sclerosis

Objective/backgroundAdults with multiple sclerosis (MS) often present with conditions that mimic restless legs syndrome (RLS), thereby adding complexity into the assessment of RLS severity. The current gold-standard measures of RLS severity rely on a fixed seven-day time frame, which limits the ability of these measures for studying acute changes in RLS severity. The present study examined if subjective and objective scores from the suggested immobilization test (SIT) provide a valid and reliable acute measure of RLS severity in persons with MS. Patients/methodsParticipants with MS and RLS (n = 20) and MS without RLS (n = 20) were matched by age, gender, and disability. All participants completed validated questionnaires for RLS severity followed by the SIT, conducted at 18:00 (±15 min) on the same day of the week for two consecutive weeks. Participants wore accelerometer devices for seven nights to capture periodic limb movements (PLMs) during the night. ResultsSelf-reported RLS severity during the SIT had excellent construct validity and convergent validity, but moderate test-retest reliability. Device-measured PLMs, while not themselves a direct measure of RLS severity, were significantly associated with PLMs during the night and had excellent test-retest reliability during the SIT in adults with MS. ConclusionsOur results suggest that the SIT represents a valid acute measure for capturing self-reported sensory aspects of RLS severity and should be considered in future research and clinical practice as a standardized acute measure of subjective RLS severity in adults with MS who present with RLS.

Acupressure reduces the severity of restless legs syndrome in hemodialysis patients: A cluster-randomized crossover pilot study

BackgroundRestless legs syndrome (RLS), a neurological disorder, often affects sleep quality in hemodialysis patients. This study aimed to evaluate acupressure's effect on the severity of RLS symptoms and sleep quality in hemodialysis patients with RLS. MethodsThis study is a cluster-randomized crossover pilot study. Patients were randomized to two sequences: acupressure for one month and observation for another month (AC); and observation for one month and acupressure for another month (CA). For the four-week acupressure intervention, patients received 36 min of acupressure three times weekly during their hemodialysis sessions. The acupoints were on the bilateral lower limbs, including Zusanli (ST36), Yanglingquan (GB34), Sanyinjiao (SP6), Xuanzhong (GB39), Chengshan (BL57), and Taichong (LR3). RLS severity and sleep quality (measured with the Pittsburgh sleep quality index, PSQI) were measured at baseline, month 1, and month 2. ResultsAC sequence (n = 14) was similar to the CA sequence (n = 9) in terms of gender, age, education, employment, marital status, comorbid disease, BMI, duration of dialysis, medication for RLS and insomnia, RLS severity, and PSQI. The general linear mixed model revealed no significant carryover effect on RLS severity, PSQI, and the seven subscales of PSQI. A significant treatment effect (acupressure) was only observed in RLS severity (p = 0.0013) but not in PSQI and the seven subscales. The significant period effect was observed in RLS severity (p = 0.0250) and the subscale of sleep disturbance (p = 0.0021). ConclusionIn hemodialysis patients with RLS, acupressure can alleviate the severity of RLS but cannot improve sleep quality.

Restless Legs Syndrome Shows Increased Silent Postmortem Cerebral Microvascular Disease With Gliosis.

BackgroundPatients with restless legs syndrome (RLS) have increased silent microvascular disease by magnetic resonance imaging. However, there has been no previous autopsy confirmation of these magnetic resonance imaging findings. RLS is also frequently associated with inflammatory and immunologically mediated medical disorders. The postmortem cortex in patients with RLS was therefore evaluated for evidence of microvascular and immunological changes.Methods and ResultsTen microvascular injury samples of precentral gyrus in 5 patients with RLS (3 men, 2 women; mean age, 81 years) and 9 controls (2 men, 7 women; mean age, 90 years) were studied by hematoxylin and eosin stains in a blinded fashion. None of the subjects had a history of stroke or neurologic insults. In a similar manner, the following immunohistochemistry stains were performed: (1) glial fibrillary acidic protein (representing gliosis, reactive change of glial cells in response to damage); (2) CD3 (a T‐cell marker); (3) CD19 (a B‐cell marker); (4) CD68 (a macrophage marker); and (5) CD117 (a mast cell marker). Patients with RLS had significantly greater silent microvascular disease (P=0.015) and gliosis (P=0.003). T cells were increased in RLS compared with controls (P=0.009) and tended to colocalize with microvascular disease (P=0.003). Other markers did not differ. There was no correlation between microvascular lesion load and RLS severity or duration.ConclusionsPatients with RLS had statistically significantly more silent cerebral microvascular disease and gliosis than controls compatible with previous magnetic resonance imaging studies and with studies showing a link between RLS and hypertension, clinical stroke, and cardiovascular disease. T‐cell invasion may be a secondary phenomenon.

Noninvasive neuromodulation reduces symptoms of restless legs syndrome

Restless legs syndrome (RLS) is a common neurological disorder characterized by an uncontrollable nocturnal urge to move the legs and often associated with chronic sleep disturbances. The most common treatments for RLS are medications that can have debilitating side effects. Here, we evaluated a novel alternative modality of RLS treatment, noninvasive bilateral electrical stimulation of the common peroneal nerve. To assess the impact of this noninvasive peripheral nerve stimulation (NPNS) approach to RLS symptomatology, we conducted a multisite randomized crossover study comparing NPNS to sham. RLS patients with moderate-to-severe RLS (n = 37) self-administered NPNS and sham nightly for 14 days per treatment in randomized order. NPNS resulted in a reduction in RLS severity of 6.81 points on the International RLS Rating Scale relative to 3.38 for sham (P < .01) and a 66% clinically significant responder rate on the Clinical Global Impressions-Improvement scale compared to 17% for sham (P < .01). Subgroup analysis indicated that medication-resistant and medication-naïve participants both exhibited similarly robust responses. There were no moderate or serious device-related adverse events. These results suggest that NPNS could be a promising alternative to pharmacological therapies for RLS and could provide a solution for medication-resistant RLS patients and for medication-naïve RLS patients who are unwilling or unable to take medication. Registry: ClinicalTrials.gov; Name: Noninvasive Peripheral Nerve Stimulation for Restless Legs Syndrome; URL: https://clinicaltrials.gov/ct2/show/NCT04700683; Identifier: NCT04700683. Buchfuhrer MJ, Baker FC, Haramandeep S, et al. Noninvasive neuromodulation reduces symptoms of restless legs syndrome. J Clin Sleep Med. 2021;17(8):1685-1694.

530 Restless Legs Syndrome Prevalence and Severity Among Patients Treated with Buprenorphine and Naloxone for Opioid Use Disorder

Abstract Introduction Restless Legs Syndrome (RLS) is a sensory-motor neurological disorder which is associated with sleep disturbance and emotional distress. Opioid medications are effective treatments for RLS, and a high percentage of patients undergoing opioid withdrawal exhibit symptoms of RLS. Despite the known connection between RLS and opioids, there has been no assessment of RLS in patients actively treated with buprenorphine and naloxone for opioid use disorder (OUD). Methods We conducted a study to determine the prevalence of RLS among patients with OUD at an outpatient buprenorphine and naloxone clinic at Lemuel Shattuck Hospital in Jamaica Plain, Massachusetts. With the help of nurses, participants completed questionnaires which inquired about demographic information, previous opioid use, current medications, and RLS. Patients were categorized as having RLS if, according to the Cambridge-Hopkins Questionnaire, they answered positively to the four essential RLS criteria and if common mimics were not endorsed. A final determination of RLS status in those with ambiguous answers to RLS mimics was made by a trained sleep medicine physician (JWW). Results Participants (n=129) were primarily male (n=86; 66.7%), white (n=101; 78.3%), and the median age was 37.5 years. Approximately half of the sample (n=59; 45.7%) used medications for depression and/or anxiety. The median duration of buprenorphine and naloxone use was 3 years. 13.2% were judged to have RLS. RLS symptoms tended to be of moderate severity, disturb sleep to a moderate degree, and occur 5–15 days per month. There were no significant demographic or clinical differences in those with and without RLS. Of the 103 participants without suspected RLS, 15.5% (n=16) were taking a non-opioid medication known to treat RLS symptoms (e.g. gabapentin). Only 1/17 people (5.9%) with RLS were taking a treatment that would control such symptoms. Conclusion Approximately 13% of this sample currently taking buprenorphine and naloxone for OUD had RLS. RLS can greatly interfere with sleep and quality of life, and those with untreated or partially treated symptoms may be motivated to use unprescribed opioids to control them. With this in mind, clinicians treating OUD should be aware that there are effective non-opioid medications that can treat RLS. Support (if any):

Non-pharmacological methods used in coping with restless leg syndrome (RLS): A systematic review

Restless leg syndrome (RLS) is a sensory-motor problem characterized by an uncomfortable and unpleasant feeling that causes a strong and irresistible desire to move the legs, often during periods of inactivity during sleep. Published full-text studies including non-pharmacological interventions used in the management of restless leg syndrome constitute the data of the study. Data were collected from MEDLINE-Pubmed, Science Direct, CINAHL electronic databases. As a result of the search, a total of 10,453 articles were reached. The study sample included quasi-experimental, experimental, or randomized controlled trials, which were published in English, with non-pharmacological interventions used to cope with restless leg syndrome, with full text available without any year limitation. Therefore, the sample consisted of 25 research articles. Non-pharmacological interventions discussed in this study are acupuncture, cognitive behavioral therapy, yoga, exercise, sleep hygiene training, near-infrared light therapy, vibration, and massage techniques. In our systematic review, it was found that non-pharmacological methods used to cope with RLS reduce RLS symptoms, RLS severity and mental health problems (depression, anxiety, stress, etc.), and increase quality of life and sleep quality. However, most of the studies we have reviewed are not randomized controlled studies and the sample group of most of them is small. Therefore, their results do not constitute sufficient evidence. In our study, it was recommended to conduct randomized controlled studies with large samples to cope with RLS.

Effective and Safety Analysis of Electroacupuncture Treatment for Restless Legs Syndrome in Maintenance Hemodialysis Patients

BACKGROUND: Restless legs syndrome (RLS) is a common complication in maintenance hemodialysis (MHD) patients. Current study was conducted to analysis the effectiveness and safety of electroacupuncture on 3 acupuncture points from lower limb meridians in the treatment of RLS.&lt;br/&gt; METHODS: A total of 7 MHD patients (5 Male and 2 Female) in our center with severe RLS symptom were enrolled. After one month of pharmacological washout period, patients received 12 sessions of electroacupuncture on three acupoints (Zusanli (ST36), Sanyinjiao (SP6) and Taichong (LR-3)) during HD. Severity of RLS symptoms and the sleep quality were evaluated by IRLSSG and ISI scores for 3 times (before, after and 1 month later of the electroacupuncture treatment).&lt;br/&gt; RESULTS: The average age of enrolled patients was 52.6±8.9 years, with median dialysis duration of 3.0 years. The hemoglobin level was 125.9±22.9 g/l. The IRLSSG score was significantly lower after electroacupuncture treatment (9.4±3.9) than that before treatment (17.3±4.7) (P &lt;0.01). Both overall severity of RLS symptom average daily severity and frequency were significantly improved after electroacupuncture. It is also validated that the electroacupuncture treatment was contributed to sleep improvement in RLS patients after electroacupuncture treatment was discontinued for one month.&lt;br/&gt; CONCLUSION: Electroacupuncture on three lower limbs acupoints during MHD was as a safe and effective treatment for attenuating the symptoms of RLS and improvement of sleep quality in hemodialysis patients, and the therapeutic effect maintain for at least one month.

Premenopausal Women With a Diagnosis of Endometriosis Have a Significantly Higher Prevalence of a Diagnosis or Symptoms Suggestive of Restless Leg Syndrome: A Prospective Cross-Sectional Questionnaire Study.

BackgroundEndometriosis and restless leg syndrome (RLS) are both chronic conditions that can negatively affect a woman’s quality of life. A higher prevalence of RLS is seen in women and particularly in those who are pregnant, suggesting a possible ovarian hormonal influence. Endometriosis is a common (affecting 1 in 10 women) estrogen driven gynecological condition, and the prevalence of RLS in women with symptoms or a diagnosis of endometriosis is unknown.MethodsA prospective, cross-sectional, observational self-completed questionnaire study was distributed to 650 pre-menopausal women attending the gynecological department at Liverpool Women`s Hospital over a period of 4 months. 584 questionnaires were returned and 465 completed questionnaires were included in the final dataset. Data on RLS-associated (The International Restless Leg Syndrome Study Group rating scale) and endometriosis-associated (modified-British Society of Gynaecological Endoscopists pelvic pain questionnaire) symptoms were collected.ResultsWomen who reported a prior surgical diagnosis of endometriosis had a greater risk of having a prior formal diagnosis of RLS (OR 4.82, 95% CI 1.66,14.02) and suffering RLS symptoms (OR 2.13, 95% CI 1.34-3.39) compared with those without a diagnosis. When women with either a formal surgical diagnosis or symptoms associated with endometriosis were grouped together, they also have a significantly increased risk of having either a formal diagnosis or symptoms suggestive of RLS (OR 2.49, 95% CI 1.30, 3.64). In women suffering with endometriosis-associated symptoms, the cumulative endometriosis-associated symptom scores demonstrated a modest positive correlation with RLS severity scores (r=0.42 95% CI 0.25 to 0.57).ConclusionsThis is the first study highlighting an association between the symptoms relevant to the two chronic conditions RLS and endometriosis, showing that women with a reported prior surgical diagnosis or symptoms suggestive of endometriosis have a significantly higher prevalence of a prior formal diagnosis or symptoms suggestive of RLS. This data will help in facilitating the discovery of novel therapeutic targets relevant to both conditions. The simultaneous treatment of these conditions could potentially lead to improvement in the overall quality of life for these women.