Displaying publications 1 - 20 of 52 in total

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  1. Low ZXB, Lee XR, Soga T, Goh BH, Alex D, Kumari Y
    Biomed Pharmacother, 2023 Sep;165:115102.
    PMID: 37406510 DOI: 10.1016/j.biopha.2023.115102
    Sleep is an essential biological phase of our daily life cycle and is necessary for maintaining homeostasis, alertness, metabolism, cognition, and other key functions across the animal kingdom. Dysfunctional sleep leads to deleterious effects on health, mood, and cognition, including memory deficits and an increased risk of diabetes, stroke, and neurological disorders. Sleep is regulated by several brain neuronal circuits, neuromodulators, and neurotransmitters, where cannabinoids have been increasingly found to play a part in its modulation. Cannabinoids, a group of lipid metabolites, are regulatory molecules that bind mainly to cannabinoid receptors (CB1 and CB2). Much evidence supports the role of cannabinoid receptors in the modulation of sleep, where their alteration exhibits sleep-promoting effects, including an increase in non-rapid-eye movement sleep and a reduction in sleep latency. However, the pharmacological alteration of CB1 receptors is associated with adverse psychotropic effects, which are not exhibited in CB2 receptor alteration. Hence, selective alteration of CB2 receptors is also of clinical importance, where it could potentially be used in treating sleep disorders. Thus, it is crucial to understand the neurobiological basis of cannabinoids in sleep physiology. In this review article, the alteration of the endocannabinoid system by various cannabinoids and their respective effects on the sleep-wake cycle are discussed based on recent findings. The mechanisms of the cannabinoid receptors on sleep and wakefulness are also explored for their clinical implications and potential therapeutic use on sleep disorders.
    Matched MeSH terms: Sleep Wake Disorders*
  2. Giussani G, Westenberg E, Garcia-Azorin D, Bianchi E, Yusof Khan AHK, Allegri RF, et al.
    Neuroepidemiology, 2024;58(2):120-133.
    PMID: 38272015 DOI: 10.1159/000536352
    INTRODUCTION: The aim of this systematic review and meta-analysis was to evaluate the prevalence of thirteen neurological manifestations in people affected by COVID-19 during the acute phase and at 3, 6, 9 and 12-month follow-up time points.

    METHODS: The study protocol was registered with PROSPERO (CRD42022325505). MEDLINE (PubMed), Embase, and the Cochrane Library were used as information sources. Eligible studies included original articles of cohort studies, case-control studies, cross-sectional studies, and case series with ≥5 subjects that reported the prevalence and type of neurological manifestations, with a minimum follow-up of 3 months after the acute phase of COVID-19 disease. Two independent reviewers screened studies from January 1, 2020, to June 16, 2022. The following manifestations were assessed: neuromuscular disorders, encephalopathy/altered mental status/delirium, movement disorders, dysautonomia, cerebrovascular disorders, cognitive impairment/dementia, sleep disorders, seizures, syncope/transient loss of consciousness, fatigue, gait disturbances, anosmia/hyposmia, and headache. The pooled prevalence and their 95% confidence intervals were calculated at the six pre-specified times.

    RESULTS: 126 of 6,565 screened studies fulfilled the eligibility criteria, accounting for 1,542,300 subjects with COVID-19 disease. Of these, four studies only reported data on neurological conditions other than the 13 selected. The neurological disorders with the highest pooled prevalence estimates (per 100 subjects) during the acute phase of COVID-19 were anosmia/hyposmia, fatigue, headache, encephalopathy, cognitive impairment, and cerebrovascular disease. At 3-month follow-up, the pooled prevalence of fatigue, cognitive impairment, and sleep disorders was still 20% and higher. At six- and 9-month follow-up, there was a tendency for fatigue, cognitive impairment, sleep disorders, anosmia/hyposmia, and headache to further increase in prevalence. At 12-month follow-up, prevalence estimates decreased but remained high for some disorders, such as fatigue and anosmia/hyposmia. Other neurological disorders had a more fluctuating occurrence.

    DISCUSSION: Neurological manifestations were prevalent during the acute phase of COVID-19 and over the 1-year follow-up period, with the highest overall prevalence estimates for fatigue, cognitive impairment, sleep disorders, anosmia/hyposmia, and headache. There was a downward trend over time, suggesting that neurological manifestations in the early post-COVID-19 phase may be long-lasting but not permanent. However, especially for the 12-month follow-up time point, more robust data are needed to confirm this trend.

    Matched MeSH terms: Sleep Wake Disorders*
  3. Norlinah MI, Afidah KN, Noradina AT, Shamsul AS, Hamidon BB, Sahathevan R, et al.
    Parkinsonism Relat Disord, 2009 Nov;15(9):670-4.
    PMID: 19362875 DOI: 10.1016/j.parkreldis.2009.02.012
    Sleep disturbances such as sleep fragmentation, sleep disordered breathing (SDB), periodic limb movements (PLM), excessive daytime somnolence (EDS) and insomnia are prevalent in Parkinson's disease (PD). However, studies in the Asian population are limited.
    Matched MeSH terms: Sleep Wake Disorders/diagnosis*; Sleep Wake Disorders/etiology; Sleep Wake Disorders/epidemiology*
  4. Azad MC, Fraser K, Rumana N, Abdullah AF, Shahana N, Hanly PJ, et al.
    J Clin Sleep Med, 2015 Jan 15;11(1):69-74.
    PMID: 25515274 DOI: 10.5664/jcsm.4370
    Medical students carry a large academic load which could potentially contribute to poor sleep quality above and beyond that already experienced by modern society. In this global literature review of the medical students' sleep experience, we find that poor sleep is not only common among medical students, but its prevalence is also higher than in non-medical students and the general population. Several factors including medical students' attitudes, knowledge of sleep, and academic demands have been identified as causative factors, but other potential mechanisms are incompletely understood. A better understanding about the etiology of sleep problems in medical trainees is essential if we hope to improve the overall quality of medical students' lives, including their academic performance. Sleep self-awareness and general knowledge appear insufficient in many studied cohorts, so increasing education for students might be one beneficial intervention. We conclude that there is ample evidence for a high prevalence of the problem, and research in this area should now expand towards initiatives to improve general sleep education for medical students, identify students at risk, and target them with programs to improve sleep.
    Matched MeSH terms: Sleep Wake Disorders/epidemiology*
  5. Teoh AN, Kaur S, Mohd Shukri NH, Shafie SR, Ahmad Bustami N, Takahashi M, et al.
    Chronobiol Int, 2021 07;38(7):959-970.
    PMID: 33779445 DOI: 10.1080/07420528.2021.1902338
    Psychological distress during pregnancy may increase the risk of adverse maternal and infant outcomes. Past studies have demonstrated the association between circadian disturbances with psychological health. However, the roles of chronotype and social jetlag on psychological state during pregnancy are yet to be identified. We aimed to examine the psychological state in pregnant women and its relations to chronotype, social jetlag (SJL), sleep quality and cortisol rhythm. The current study included a subsample of participants from an ongoing cohort study. A total of 179 primigravidas (mean age 28.4 ± 4.0 years) were recruited. Chronotype and sleep quality during the second trimester were assessed using the Morning-Eveningness Questionnaire (MEQ) and Pittsburgh Sleep Quality Index (PSQI), respectively. SJL was calculated based on the difference between mid-sleep on workdays and free days. Psychological state of participants was evaluated using the Depression, Anxiety, and Stress Scale-21 (DASS-21). Subsamples (n = 70) provided salivary samples at 5 time points over a 24 h period during the second trimester for cortisol assay. A higher proportion of pregnant women experienced moderate to severe anxiety symptoms (n = 77, 43.0%), followed by depressive (n = 17, 9.5%) and stress (n = 14, 7.8%) symptoms. No association was observed between chronotype and psychological distress during pregnancy. There was no significant difference in cortisol rhythms in relation to psychological distress. SJL and sleep quality were significantly associated with stress symptoms among pregnant women in the second trimester. Poor sleep quality, particularly daytime dysfunction (β = 0.37, p = .006) and sleep disturbances (β = 0.23, p = .047), were significantly associated with psychological distress (depressive, anxiety and stress symptoms) during the second trimester. The findings suggest that sleep is a potential modifiable lifestyle factor that can be targeted to improve psychological health among pregnant women.
    Matched MeSH terms: Sleep Wake Disorders*
  6. Yildirim O, Baloglu UB, Acharya UR
    PMID: 30791379 DOI: 10.3390/ijerph16040599
    Sleep disorder is a symptom of many neurological diseases that may significantly affect the quality of daily life. Traditional methods are time-consuming and involve the manual scoring of polysomnogram (PSG) signals obtained in a laboratory environment. However, the automated monitoring of sleep stages can help detect neurological disorders accurately as well. In this study, a flexible deep learning model is proposed using raw PSG signals. A one-dimensional convolutional neural network (1D-CNN) is developed using electroencephalogram (EEG) and electrooculogram (EOG) signals for the classification of sleep stages. The performance of the system is evaluated using two public databases (sleep-edf and sleep-edfx). The developed model yielded the highest accuracies of 98.06%, 94.64%, 92.36%, 91.22%, and 91.00% for two to six sleep classes, respectively, using the sleep-edf database. Further, the proposed model obtained the highest accuracies of 97.62%, 94.34%, 92.33%, 90.98%, and 89.54%, respectively for the same two to six sleep classes using the sleep-edfx dataset. The developed deep learning model is ready for clinical usage, and can be tested with big PSG data.
    Matched MeSH terms: Sleep Wake Disorders/physiopathology*
  7. Mousavi S, Afghah F, Acharya UR
    PLoS One, 2019;14(5):e0216456.
    PMID: 31063501 DOI: 10.1371/journal.pone.0216456
    Electroencephalogram (EEG) is a common base signal used to monitor brain activities and diagnose sleep disorders. Manual sleep stage scoring is a time-consuming task for sleep experts and is limited by inter-rater reliability. In this paper, we propose an automatic sleep stage annotation method called SleepEEGNet using a single-channel EEG signal. The SleepEEGNet is composed of deep convolutional neural networks (CNNs) to extract time-invariant features, frequency information, and a sequence to sequence model to capture the complex and long short-term context dependencies between sleep epochs and scores. In addition, to reduce the effect of the class imbalance problem presented in the available sleep datasets, we applied novel loss functions to have an equal misclassified error for each sleep stage while training the network. We evaluated the performance of the proposed method on different single-EEG channels (i.e., Fpz-Cz and Pz-Oz EEG channels) from the Physionet Sleep-EDF datasets published in 2013 and 2018. The evaluation results demonstrate that the proposed method achieved the best annotation performance compared to current literature, with an overall accuracy of 84.26%, a macro F1-score of 79.66% and κ = 0.79. Our developed model can be applied to other sleep EEG signals and aid the sleep specialists to arrive at an accurate diagnosis. The source code is available at https://github.com/SajadMo/SleepEEGNet.
    Matched MeSH terms: Sleep Wake Disorders/physiopathology*
  8. Aazami S, Shamsuddin K, Akmal S, Azami G
    Malays J Med Sci, 2015 Jul-Aug;22(4):40-6.
    PMID: 26715907 MyJurnal
    The workplace environment has a great influence on employees' health. Job dissatisfaction has been widely recognised as a workplace stressor that can influence employees' psychological and physical health statuses. However, job satisfaction is a multi-dimensional concept, and it is necessary to investigate its different facets and their unique consequences. Therefore, the aim of this study was to assess the relationship between the nine facets of job satisfaction and psychological health and somatic complaints (i.e., sleep disorders, headache, gastro-intestinal and respiratory problems).
    Matched MeSH terms: Sleep Wake Disorders
  9. Atmawidjaja RW, Wong SW, Yang WW, Ong LC
    Dev Med Child Neurol, 2014 Jul;56(7):681-5.
    PMID: 24528212 DOI: 10.1111/dmcn.12399
    The aim of the study was to compare the frequency and type of sleep disturbances in a group of Malaysian children aged 4 to 18 years with cerebral palsy (CP) with their nearest-age, able-bodied siblings and to identify factors associated with sleep disturbances.
    Matched MeSH terms: Sleep Wake Disorders/diagnosis; Sleep Wake Disorders/etiology*
  10. Ong LC, Yang WW, Wong SW, alSiddiq F, Khu YS
    J Paediatr Child Health, 2010 Mar;46(3):80-4.
    PMID: 20105259 DOI: 10.1111/j.1440-1754.2009.01642.x
    To compare sleep habits and disturbances between Malaysian children with epilepsy and their siblings (age range 4-18 years) and to determine the factors associated with greater sleep disturbance.
    Matched MeSH terms: Sleep Wake Disorders/etiology; Sleep Wake Disorders/epidemiology*
  11. Rehman IU, Chohan TA, Bukhsh A, Khan TM
    Medicina (Kaunas), 2019 Oct 17;55(10).
    PMID: 31627446 DOI: 10.3390/medicina55100699
    : Chronic kidney disease (CKD)-associated pruritus is a common and disturbing condition which has a negative impact on sleep quality, as well as overall health-related quality of life of patients receiving hemodialysis. To date, no systematic review has been undertaken, and there is a lack of concise evidence that statistically quantifies the impact of pruritus based on published data. A systematic search was done for original articles published in peer-reviewed English journals from database inception on 20 December, 2018, in the following databases: PubMed, MEDLINE, EMBASE, Ovid, CINHAL, ProQuest, and Scopus. A total of 9217 research articles were identified. After removal of duplicates and screening for titles and abstracts, 28 articles were selected. The prevalence of disturbed sleep was 4-94%, while the pooled proportion on random effect in the study was 40% (95% CI = 0.30 to 0.49); I2 = 99.8%. However, the prevalence of disturbed sleep quality and quantity due to pruritus was 9-76%, and the pooled proportion on random effect in the study was 50% (95% CI = 0.37 to 0.64); I2 = 99.8%. Patients undergoing hemodialysis who are affected by CKD-associated pruritus have a higher chance of experiencing sleep disturbances. The prevalence of disturbed sleep due to CKD-associated pruritus was found to be 9-76% in the included studies for patients receiving hemodialysis therapy.
    Matched MeSH terms: Sleep Wake Disorders/etiology*; Sleep Wake Disorders/psychology
  12. Low SLK, Ho GF, Liu B, Koh ES, Fei Y, Teo CS, et al.
    Integr Cancer Ther, 2024;23:15347354241252698.
    PMID: 38757745 DOI: 10.1177/15347354241252698
    BACKGROUND: Cancer-related fatigue and its associated symptoms of sleep disorder and depression are prevalent in cancer survivors especially among breast, lung, and colorectal cancer survivors. While there is no gold standard for treating cancer-related fatigue currently, studies of mind-body exercises such as Qigong have reported promise in reducing symptoms. This study was designed to evaluate the feasibility and effect of Guolin Qigong on cancer-related fatigue and other symptoms in breast, lung and colorectal cancer survivors while exploring their perceptions and experiences of Guolin Qigong intervention.

    METHODS: This is an open-label randomized controlled trial with 60 participants divided into 2 study groups in a 1:1 ratio. The intervention group will receive 12 weeks of Guolin Qigong intervention with a 4-week follow-up while control will receive usual care under waitlist. The primary outcome will be feasibility measured based on recruitment and retention rates, class attendance, home practice adherence, nature, and quantum of missing data as well as safety. The secondary subjective outcomes of fatigue, sleep quality and depression will be measured at Week-1 (baseline), Week-6 (mid-intervention), Week-12 (post-intervention), and Week-16 (4 weeks post-intervention) while an objective 24-hour urine cortisol will be measured at Week-1 (baseline) and Week-12 (post-intervention). We will conduct a semi-structured interview individually with participants within 3 months after Week-16 (4 weeks post-intervention) to obtain a more comprehensive view of practice adherence.

    DISCUSSION: This is the first mixed-method study to investigate the feasibility and effect of Guolin Qigong on breast, lung, and colorectal cancer survivors to provide a comprehensive understanding of Guolin Qigong's intervention impact and participants' perspectives. The interdisciplinary collaboration between Western Medicine and Chinese Medicine expertise of this study ensures robust study design, enhanced participant care, rigorous data analysis, and meaningful interpretation of results. This innovative research contributes to the field of oncology and may guide future evidence-based mind-body interventions to improve cancer survivorship.

    TRIAL REGISTRATION: This study has been registered with ANZCTR (ACTRN12622000688785p), was approved by Medical Research Ethic Committee of University Malaya Medical Centre (MREC ID NO: 2022323-11092) and recognized by Western Sydney University Human Research Ethics Committee (RH15124).

    Matched MeSH terms: Sleep Wake Disorders/etiology; Sleep Wake Disorders/therapy
  13. Rehman IU, Wu DB, Ahmed R, Khan NA, Rahman AU, Munib S, et al.
    Medicine (Baltimore), 2018 08;97(31):e10764.
    PMID: 30075491 DOI: 10.1097/MD.0000000000010764
    BACKGROUND: Pruritus adds to the complications of chronic kidney disease (CKD) patient and a well-recognized complication among the CKD patients. Majority of the patients on hemodialysis experience a generalized pruritus and patients reported being moderately to extremely disturbed by at least one of the sleep-related condition. This study aim to investigate the effectiveness of zolpidem 10 mg and acupressure therapy on foot acupoints to improve the sleep quality and overall quality of life among hemodialysis patients suffering from CKD-associated pruritus.

    METHODS: A multicentered, open-label, parallel group, prospective randomized controlled trial among patients suffering from CKD-associated pruritus with sleep disturbance, after randomization into control, and intervention group to be held at North West General Hospital and Research Center Peshawar, Pakistan and Institute of Kidney Diseases Peshawar, Pakistan.

    RESULTS: The primary outcome is to investigate the effectiveness of zolpidem 10 mg and acupressure therapy on foot acupoints to improve the sleep quality and overall quality of life among hemodialysis patients suffering from CKD-associated pruritus. After baseline assessment by Urdu version of 5D itch scale and Urdu version of Pittsburgh Sleep Quality Index (PSQI) and Urdu EQ-5D 3L, the intervention group will be given zolpidem 10 mg oral tablets and control group with acupressure on both foots on KI-1 acupoints for total of 6 minutes. Assessment will be done at weeks 4 and 8 from baseline by using Urdu version of 5D itch scale and Urdu version of PSQI and Urdu EQ-5D 3L, whereas safety profiling of zolpidem 10 mg tablet at week 6 from baseline and acupressure acceptability at week 6 from baseline. Analysis of covariance will be used to examine the differences in treatment effects between the intervention and control groups.

    CONCLUSION: Improvement of sleep quality and quality of life among patients with CKD-associated pruritus requires great importance. This study aims to improve the quality of sleep and quality of life among patients with hemodialysis suffering from CKD-associated pruritus.

    Matched MeSH terms: Sleep Wake Disorders/etiology; Sleep Wake Disorders/therapy*
  14. Rehman IU, Lai PSM, Lim SK, Lee LH, Khan TM
    BMC Nephrol, 2019 03 25;20(1):102.
    PMID: 30909887 DOI: 10.1186/s12882-019-1294-1
    BACKGROUND: Chronic kidney disease-associated pruritus (CKD-aP) is a well-recognized, frequent and compromising complication among patients on hemodialysis. Despite advancement in basic medical sciences, CKD-aP is still a major complication and a challenge for both physicians and patients to manage. The aim of this study was to estimate the prevalence of CKD-aP among hemodialysis patients in Malaysia, to determine the impact of CKD-aP on sleep quality and any factors associated with CKD-aP.

    METHOD: A multi-centered, cross-sectional study design was conducted from February 2017 to September 2017 at a tertiary hospital and its affiliated dialysis centers, in Kuala Lumpur, Malaysia. Included were patients > 18 years of age who were undergoing hemodialysis and could understand Malay. Participants were asked to fill the Malay 5D-itch scale and the Malay Pittsburgh sleep quality index (PSQI) upon recruitment.

    RESULTS: A total of 334/334 patients were recruited (response rate = 100%). The majority were male (59.6%) and Chinese (61.7%). A total of 61.3% had pruritus, of which most patients (63.4%) reported that their pruritus was mild. More than half (54.1%) reported that they slept > 6 h, and 93.2% experienced no sleep disturbances during the night. However; the overall PSQI median score [IQR] was 6.0 [5.0-9.0]. No significant association was found between demographic and clinical characteristics of patients with the severity of pruritus. Patients with moderate to severe pruritus were found to be 5.47 times more likely to experience poor sleep quality as compared to patients with mild or no pruritus.

    CONCLUSION: In Malaysia, the prevalence of CKD-aP was 61.3%, of which the majority reported that their pruritus was mild. Patients with moderate to severe pruritus were found to be 5.47 times more likely to experience poor sleep quality as compared to patients with mild or no pruritus.

    Matched MeSH terms: Sleep Wake Disorders/diagnosis*; Sleep Wake Disorders/epidemiology*
  15. Maniam R, Subramanian P, Singh SK, Lim SK, Chinna K, Rosli R
    Singapore Med J, 2014 Sep;55(9):476-82.
    PMID: 25273932
    INTRODUCTION: Fatigue and quality of sleep are the main factors that contribute to a poor quality of life among patients on long-term haemodialysis. Studies have also emphasised the importance of exercise for improving the wellbeing of dialysis patients. This study aimed to determine the effectiveness of a predialysis low-to-moderate-intensity exercise programme for reducing fatigue and improving sleep disorders among long-term haemodialysis patients.

    METHODS: In this quasi-experimental study, an exercise programme was conducted three times a week for 12 weeks before long-term haemodialysis patients underwent dialysis at two centres. The patients were categorised into either the exercise group (n = 28) or control group (n = 27). The latter was asked to maintain their current lifestyles. Assessments of fatigue and sleep disorder levels were performed for both groups using self-reported questionnaires at baseline and after intervention. The patients' perception of the exercise programme was also determined using self-reported questionnaires.

    RESULTS: Paired sample t-test indicated improvements in fatigue level in the exercise group (mean fatigue score: post-treatment 40.5 ± 7.9 vs. pre-treatment 30.0 ± 10.9). Improvements in sleep disorders were also observed in the exercise group (mean score: post-treatment 7.6 ± 3.3 vs. pre-treatment 10.1 ± 3.8). However, sleep quality deteriorated in the control group (mean score: post-treatment 10.7 ± 2.9 vs. pre-treatment 9.3 ± 2.9).

    CONCLUSION: Simple low-to-moderate-intensity exercise is effective for improving fatigue, sleep disorders and the overall quality of life among haemodialysis patients.
    Matched MeSH terms: Sleep Wake Disorders/psychology; Sleep Wake Disorders/therapy*
  16. Eshkoor SA, Hamid TA, Nudin SS, Mun CY
    Am J Alzheimers Dis Other Demen, 2013 May;28(3):253-7.
    PMID: 23612908 DOI: 10.1177/1533317513481098
    OBJECTIVES: This study aimed to determine the effects of social support and having a partner on sleep quality in the elderly patients with dementia.

    METHODOLOGY: This research was conducted on 1210 noninstitutionalized elderly Malaysian individuals with dementia. The effects of age, ethnicity, educational level, marital status, sex differences, social support, and having a partner on sleep quality were evaluated in the respondents. The multiple logistic regression analysis was used to predict the risk of sleep disturbances among the participants.

    RESULTS: Approximately, 41% of the participants experienced sleep disruption. Further findings showed that ethnicity (odds ratio [OR] = 0.62), social support (OR = 1.35), marital status (OR = 2.21), educational level (OR = 0.65), and having a partner (OR = 0.45) significantly affected sleep quality (P < .05). Sex differences and age were unrelated predictors of sleep disturbances (P > .05).

    CONCLUSION: It was concluded that social isolation and being single increased sleep disruption among respondents, but having a partner and ethnic non-Malay decreased the rate of sleep problems.

    Matched MeSH terms: Sleep Wake Disorders/ethnology*; Sleep Wake Disorders/psychology
  17. Eshkoor SA, Hamid TA, Nudin SS, Mun CY
    Am J Alzheimers Dis Other Demen, 2014 Feb;29(1):61-6.
    PMID: 24085252 DOI: 10.1177/1533317513505136
    This study aimed to determine the effects of diabetes mellitus (DM), hypertension (HT), heart disease, social isolation, and sociodemographic factors on sleep in the elderly patients with dementia. Samples included 1210 noninstitutionalized, Malaysian elderly patients with dementia. The multiple logistic regression analysis was applied to estimate the risk of sleep disturbances among respondents. Approximately 41% of the patients experienced sleep problems. The results showed that age (odds ratio [OR] = 1.02), social isolation (OR = 1.33), and HT (OR = 1.53) significantly increased sleep disruption in respondents (P sleep problems (P sleep disturbances (P >.05). It was concluded that age, social isolation, and HT increased sleep disruption but education and ethnic non-Malay reduced the risk of sleep problems. Moreover, HT was the most important variable to increase sleep disturbances in the elderly patients with dementia.
    Matched MeSH terms: Sleep Wake Disorders/ethnology; Sleep Wake Disorders/epidemiology*
  18. Ling LL, Chan YM, Mat Daud Z'
    Asia Pac J Clin Nutr, 2019;28(2):401-410.
    PMID: 31192570 DOI: 10.6133/apjcn.201906_28(2).0023
    BACKGROUND AND OBJECTIVES: Poor sleep quality is prevalent among hemodialysis (HD) patients and leads to adverse health outcomes. This study investigated the association of nutritional parameters with sleep quality among Malaysian HD patients.

    METHODS AND STUDY DESIGN: A cross-sectional study was conducted among 184 Malaysian HD patients. Anthropometric measurements and handgrip strength (HGS) were obtained using standardized protocols. Relevant biochemical indicators were retrieved from patients' medical records. Nutritional status was assessed using the dialysis malnutrition score. The sleep quality of patients was determined using the Pittsburgh Sleep Quality Index questionnaire on both dialysis and non-dialysis days.

    RESULTS: Slightly more than half of the HD patients were poor sleepers, with approximately two-third of them having a sleep duration of <7 hours per day. Sleep latency (1.5±1.2) had the highest sleep component score, whereas sleep medicine use (0.1±0.6) had the lowest score. Significantly longer sleep latency and shorter sleep duration were observed in the poor sleepers, regardless of whether it was a dialysis day or not (p<0.001). Poor sleep quality was associated with male sex, old age, small triceps skinfold, hypoproteinemia, hyperkalemia, hyperphosphatemia, and poorer nutritional status. In a multivariate analysis model, serum potassium (β=1.41, p=0.010), male sex (β=2.15, p=0.003), and HGS (β=-0.088, p=0.021) were found as independent predictors of sleep quality.

    CONCLUSIONS: Poor sleep quality was evident among the HD patients in Malaysia. The sleep quality of the HD patients was associated with nutritional parameters. Routine assessment of sleep quality and nutritional parameters indicated that poor sleepers have a risk of malnutrition and may benefit from appropriate interventions.

    Matched MeSH terms: Sleep Wake Disorders/blood; Sleep Wake Disorders/epidemiology*; Sleep Wake Disorders/physiopathology
  19. Misron, L.H., Misron, K., Misron, S.N.F.
    MyJurnal
    Sleep disorder including insomnia is one of the complications of general anaesthesia. It is not uncommon and it is temporary but majority remains unnoticed and untreated. The effect of insomnia ranges from mild to severe, influencing both physical and mental health. Surgeon and anaesthetist need to identify this complication so that an appropriate treatment can be delivered. In complicated case, psychiatrist involvement is crucial. The treatment is symptomatic and temporary. We reported a case of distressful sleep disorder as a sequelae of general anaesthesia for mastoidectomy surgery. Subsequently after symptomatic treatment, he recovered completely and regained his normal sleep pattern.
    Matched MeSH terms: Sleep Wake Disorders
  20. Tang YW, Teoh SL, Yeo JHH, Ngim CF, Lai NM, Durrant SJ, et al.
    Behav Sleep Med, 2021 Apr 25.
    PMID: 33896299 DOI: 10.1080/15402002.2021.1915787
    Background: Listening to music is often used as a self-help intervention to improve sleep quality, but its efficacy among individuals without sleep disorder remains unclear.Methods: A search was performed on five databases to identify for studies that examined the use of music-based intervention to improve sleep quality among individuals without sleep disorder. Random-effects meta-analysis was performed, and the certainty of evidence was evaluated using GRADE (Grading of Recommendations Assessment, Development and Evaluation).Results: Twenty-two articles which recruited 1,514 participants were included for review. Meta-analysis of six studies including 424 participants did not find an improvement in sleep quality among recipients of music-based intervention compared to those with standard care (mean difference: -0.80; 95% CI: -2.15 to 0.54, low-quality evidence). Subgroup analysis showed a clear improvement in sleep quality when interventions were administered for at least 3 weeks (-2.09; -3.84 to -0.34, n = 3). No difference in terms of sleep onset latency (standardized mean difference (SMD) -0.32; 95% CI -0.88 to 0.25, n = 4, very-low quality evidence) and sleep efficiency (SMD: -0.59; 95% CI -3.15 to 1.97, n = 2, very-low quality evidence) were observed. The effect of music-based intervention on anxiety, depression and quality of life were mixed with suggestions of possible benefits.Conclusion: Music-based intervention in addition to standard care appears to be a promising strategy to improve sleep quality when delivered for 3 week or longer. However, effects are inconsistent across studies and larger randomized controlled studies reporting long-term outcomes are needed before it can be recommended for routine use.PROSPERO registration: CRD42018081193.
    Matched MeSH terms: Sleep Wake Disorders
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