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https://www.readbyqxmd.com/read/28328583/case-report-of-a-patient-with-idiopathic-hypersomnia-and-a-family-history-of-malignant-hyperthermia-undergoing-general-anesthesia-an-overview-of-the-anesthetic-considerations
#1
Sena Aflaki, Sally Hu, Rami A Kamel, Frances Chung, Mandeep Singh
The pathophysiologic underpinnings of idiopathic hypersomnia and its interactions with anesthetic medications remain poorly understood. There is a scarcity of literature describing this patient population in the surgical setting. This case report outlines the anesthetic considerations and management plan for a 55-year-old female patient with a known history of idiopathic hypersomnia undergoing an elective shoulder arthroscopy in the ambulatory setting. In addition, this case offers a unique set of considerations and conflicts related to the patient having a family history of malignant hyperthermia...
March 17, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28302408/narcolepsy-and-hypersomnia-in-norwegian-children-and-young-adults-following-the-influenza-a-h1n1-2009-pandemic
#2
Lill Trogstad, Inger Johanne Bakken, Nina Gunnes, Sara Ghaderi, Camilla Stoltenberg, Per Magnus, Siri E Håberg
BACKGROUND: Associations between influenza infection and sleep disorders are poorly studied. We investigated if pandemic influenza infection or vaccination with Pandemrix in 2009/2010 was associated with narcolepsy or hypersomnia in children and young adults. METHODS: We followed the Norwegian population under age 30 from January 2008 through December 2012 by linking national health registry data. Narcolepsy diagnoses were validated using hospital records. Risks of narcolepsy or hypersomnia were estimated as adjusted hazard ratios (HRs) in Cox regression models with influenza infection and vaccination as time-dependent exposures...
March 13, 2017: Vaccine
https://www.readbyqxmd.com/read/28243864/hypersomnolence-hypersomnia-and-mood-disorders
#3
REVIEW
Lucie Barateau, Régis Lopez, Jean Arthur Micoulaud Franchi, Yves Dauvilliers
Relationships between symptoms of hypersomnolence, psychiatric disorders, and hypersomnia disorders (i.e., narcolepsy and idiopathic hypersomnia) are complex and multidirectional. Hypersomnolence is a common complaint across mood disorders; however, patients suffering from mood disorders and hypersomnolence rarely have objective daytime sleepiness, as assessed by the current gold standard test, the Multiple Sleep Latency Test. An iatrogenic origin of symptoms of hypersomnolence, and sleep apnea syndrome must be considered in a population of psychiatric patients, often overweight and treated with sedative drugs...
February 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28235881/hypersomnia-an-overlooked-but-not-overestimated-sleep-disturbance-in-bipolar-disorder
#4
Katherine A Kaplan, Rayma Williams
No abstract text is available yet for this article.
February 24, 2017: Evidence-based Mental Health
https://www.readbyqxmd.com/read/28235603/val158met-polymorphism-in-the-comt-gene-is-associated-with-hypersomnia-and-mental-health-related-quality-of-life-in-a-colombian-sample
#5
Karen M Jiménez, Angela J Pereira-Morales, Diego A Forero
The identification of genes that are risk factors for major depressive disorder remains a main task for global psychiatric research. The Catechol-O-methyltransferase (COMT) gene has been an important candidate risk factor for several psychiatric disorders. Previous studies have shown that a functional polymorphism (Val158Met) in this gene has an effect on several brain circuits and endophenotypes of psychiatric relevance. The aim of this study was to explore the association of a functional polymorphism in the COMT gene with psychological distress, sleep problems and health-related quality of life...
February 22, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28219726/diagnostic-value-of-sleep-stage-dissociation-as-visualized-on-a-2-dimensional-sleep-state-space-in-human-narcolepsy
#6
Anders Vinther Olsen, Jens Stephansen, Eileen Leary, Paul E Peppard, Hong Sheungshul, Poul Jenum, Helge Sorensen, Emmanuel Mignot
BACKGROUND: Type 1 narcolepsy (NT1) is characterized by symptoms believed to represent Rapid Eye Movement (REM) sleep stage dissociations, occurrences where features of wake and REM sleep are intermingled, resulting in a mixed state. We hypothesized that sleep stage dissociations can be objectively detected through the analysis of nocturnal Polysomnography (PSG) data, and that those affecting REM sleep can be used as a diagnostic feature for narcolepsy. NEW METHOD: A Linear Discriminant Analysis (LDA) model using 38 features extracted from EOG, EMG and EEG was used in control subjects to select features differentiating wake, stage N1, N2, N3 and REM sleep...
February 20, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28216256/kleine-levin-syndrome
#7
REVIEW
Olufunke Afolabi-Brown, Thornton B A Mason
Kleine-Levin syndrome (KLS) is a rare disorder characterized by discrete episodes of hypersomnia associated with cognitive and behavioural abnormalities, as well as normal alertness and function between episodes. The prevalence of KLS may be underestimated as it is often misdiagnosed and managed as another sleep disorder, neurological disorder or psychiatric condition. KLS is more typically seen in adolescence than at other ages, and is more common in males than in females. There are currently neither standard biomarkers nor specific imaging study findings, making the diagnosis of KLS a challenge...
December 23, 2016: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/28214781/cannabis-use-and-the-course-and-outcome-of-major-depressive-disorder-a-population-based-longitudinal-study
#8
Daniel Feingold, Jürgen Rehm, Shaul Lev-Ran
Cannabis use has been reported to affect the course of various psychiatric disorders, however its effect on the course of major depressive disorder (MDD) is not yet clear. We used data from Wave 1 and Wave 2 of the National Epidemiologic survey on Alcohol and Related Conditions (NESARC). Individuals with baseline MDD (N=2,348) were included in the study. Cannabis users without a Cannabis Use Disorder (CUDs) and individuals with a CUD were compared to nonusers using linear and logistic regression analyses controlling for sociodemographics, psychiatric disorders and substance use disorders at baseline...
February 12, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28207526/restoration-of-the-ascending-reticular-activating-system-compressed-by-hematoma-in-a-stroke-patient
#9
Sung Ho Jang, Jeong Pyo Seo
RATIONALE: We report on restoration of the ascending reticular activating system (ARAS), compressed by an intracerebral hematoma and perihematomal edema following a stroke. The restoration of the ARAS was demonstrated by diffusion tensor tractography (DTT). PATIENT CONCERNS: In a 60-year-old male, a brain MRI taken at 2 weeks after the surgery showed a hematoma and perihematomal edema in the left posterolateral pons and cerebellum, which were markedly resolved on a brain MRI after 5 weeks...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28173893/sleep-and-circadian-rhythm-disturbance-in-bipolar-disorder
#10
A J Bradley, R Webb-Mitchell, A Hazu, N Slater, B Middleton, P Gallagher, H McAllister-Williams, K N Anderson
BACKGROUND: Subjective reports of insomnia and hypersomnia are common in bipolar disorder (BD). It is unclear to what extent these relate to underlying circadian rhythm disturbance (CRD). In this study we aimed to objectively assess sleep and circadian rhythm in a cohort of patients with BD compared to matched controls. METHOD: Forty-six patients with BD and 42 controls had comprehensive sleep/circadian rhythm assessment with respiratory sleep studies, prolonged accelerometry over 3 weeks, sleep questionnaires and diaries, melatonin levels, alongside mood, psychosocial functioning and quality of life (QoL) questionnaires...
February 8, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28162143/patient-reported-measures-of-narcolepsy-the-need-for-better-assessment
#11
Ulf Kallweit, Markus Schmidt, Claudio L Bassetti
STUDY OBJECTIVES: Narcolepsy, a chronic disorder of the central nervous system, is clinically characterized by a symptom pentad that includes excessive daytime sleepiness, cataplexy, sleep paralysis, hypnopompic/hypnagogic hallucinations, and disrupted nighttime sleep. Ideally, screening and diagnosis instruments that assist physicians in evaluating a patient for type 1 or type 2 narcolepsy would be brief, easy for patients to understand and physicians to score, and would identify or rule out the need for electrophysiological testing...
January 31, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28159097/hypersomnia-evaluation-treatment-and-social-and-economic-aspects
#12
REVIEW
Prabhjyot Saini, David B Rye
Most central disorders of hypersomnolence are conditions with poorly understood pathophysiologies, making their identification, treatment, and management challenging for sleep clinicians. The most challenging to diagnose and treat is idiopathic hypersomnia. There are no FDA-approved treatments, and off-label usage of narcolepsy treatments seldom provide benefit. Patients are largely left on their own to alleviate the compound effects of this disorder on their quality of life. This review covers the major points regarding clinical features and diagnosis of idiopathic hypersomnia, reviews current evidence supporting the available treatment options, and discusses the psychosocial impact and effects of idiopathic hypersomnia...
March 2017: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/28145043/objective-measures-of-sleep-duration-and-continuity-in-major-depressive-disorder-with-comorbid-hypersomnolence-a-primary-investigation-with-contiguous-systematic-review-and-meta-analysis
#13
REVIEW
David T Plante, Jesse D Cook, Michael R Goldstein
Hypersomnolence plays an important role in the presentation, treatment and course of mood disorders. However, there has been relatively little research that examines objective measures of sleep duration and continuity in patients with depression and hypersomnolence, despite the use of these factors in sleep medicine nosological systems. This study compared total sleep time and efficiency measured by naturalistic actigraphic recordings followed by ad libitum polysomnography (PSG; without prescribed wake time) in 22 patients with major depressive disorder and co-occurring hypersomnolence against age- and sex-matched healthy sleeper controls...
February 1, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28127809/lifetime-history-of-insomnia-and-hypersomnia-symptoms-as-correlates-of-alcohol-cocaine-and-heroin-use-and-relapse-among-adults-seeking-substance-use-treatment-in-the-united-states-from-1991-to-1994
#14
Michael R Dolsen, Allison G Harvey
AIMS: To examine the association between a lifetime history of insomnia and hypersomnia compared with no sleep disturbance and substance use patterns and amounts before and after a substance use treatment episode. DESIGN: Secondary analysis of data from the Drug Abuse Treatment Outcome Studies conducted from 1991 to 1994. SETTING: Data were collected at 96 substance use treatment programs in 11 United States cities including short-term in-patient, long-term residential, methadone maintenance, and outpatient drug-free treatment modalities...
January 26, 2017: Addiction
https://www.readbyqxmd.com/read/28121394/symptoms-of-major-depression-their-stability-familiality-and-prediction-by-genetic-temperamental-and-childhood-environmental-risk-factors
#15
Kenneth S Kendler, Steven H Aggen
BACKGROUND: Psychiatry has long sought to develop biological diagnostic subtypes based on symptomatic differences. This effort assumes that symptoms reflect, with good fidelity, underlying etiological processes. We address this question for major depression (MD). METHODS: We examine, in twins from a population-based registry, similarity in symptom endorsement in individuals meeting criteria for last-year MD at separate interview waves and in concordant twin pairs...
January 25, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28116759/improvement-of-a-patient-s-circadian-rhythm-sleep-disorders-by-aripiprazole-was-associated-with-stabilization-of-his-bipolar-illness
#16
Tetsuo Tashiro
Splitting of the behavioural activity phase has been found in nocturnal rodents with suprachiasmatic nucleus (SCN) coupling disorder. A similar phenomenon was observed in the sleep phase in the diurnal human discussed here, suggesting that there are so-called evening and morning oscillators in the SCN of humans. The present case suffered from bipolar disorder refractory to various treatments, and various circadian rhythm sleep disorders, such as delayed sleep phase, polyphasic sleep, separation of the sleep bout resembling splitting and circabidian rhythm (48 h), were found during prolonged depressive episodes with hypersomnia...
January 24, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28087252/novel-method-for-evaluation-of-eye-movements-in-patients-with-narcolepsy
#17
Julie A E Christensen, Lykke Kempfner, Helle L Leonthin, Mathias Hvidtfelt, Miki Nikolic, Birgitte Rahbek Kornum, Poul Jennum
BACKGROUND: Narcolepsy causes abnormalities in the control of wake-sleep, non-rapid-eye-movement (non-REM) sleep and REM sleep, which includes specific eye movements (EMs). In this study, we aim to evaluate EM characteristics in narcolepsy as compared to controls using an automated detector. METHODS: We developed a data-driven method to detect EMs during sleep based on two EOG signals recorded as part of a polysomnography (PSG). The method was optimized using the manually scored hypnograms from 36 control subjects...
December 21, 2016: Sleep Medicine
https://www.readbyqxmd.com/read/28072702/hypersomnia-due-to-injury-of-the-ventral-ascending-reticular-activating-system-following-cerebellar-herniation-a-case-report
#18
Sung Ho Jang, Chul Hoon Chang, Young Jin Jung, Hyeok Gyu Kwon
RATIONALE: We report on a patient with hypersomnia who showed injury of the lower ascending reticular activating system (ARAS) following cerebellar herniation due to a cerebellar infarct, detected on diffusion tensor tractography (DTT). PATIENT CONCERNS: A 53-year-old male patient was diagnosed as a left cerebellar infarct, and underwent decompressive suboccipital craniectomy due to brain edema at 2 days after the onset of a cerebellar infarct. Three weeks after onset when the patient started rehabilitation, he showed hypersomnia without impairment of consciousness; he fell asleep most of daytime without external stimulation and showed an abnormal score on the Epworth Sleepiness Scale: 15 (full score: 24, cut off for hypersomnia: 10)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28012610/secondary-to-excessive-melatonin-synthesis-the-consumption-of-tryptophan-from-outside-the-blood-brain-barrier-and-melatonin-over-signaling-in-the-pars-tuberalis-may-be-central-to-the-pathophysiology-of-winter-depression
#19
José Carlos Pereira, Márcia Pradella Hallinan, Rosana Cardoso Alves
Seasonal affective disorder is defined as recurrent episodes of major depression, mania, or hypomania with seasonal onset and remission. In this class of mood disturbances, a unipolar major depressive disorder known as winter depression is common in populations living in northern latitudes far from the equator. Winter depression repeatedly occurs in the autumn or winter and remits in the spring or summer, and its etiopathogenesis is currently unknown. However, one can surmise that excessive melatonin production during the reduced duration of daily sunlight in the autumn and winter plays a role in its pathophysiology...
January 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28007991/genetic-inactivation-of-glutamate-neurons-in-the-rat-sublaterodorsal-tegmental-nucleus-recapitulates-rem-sleep-behaviour-disorder
#20
Sara Valencia Garcia, Paul-Antoine Libourel, Michael Lazarus, Daniela Grassi, Pierre-Hervé Luppi, Patrice Fort
Idiopathic REM sleep behaviour disorder is characterized by the enactment of violent dreams during paradoxical (REM) sleep in the absence of normal muscle atonia. Accumulating clinical and experimental data suggest that REM sleep behaviour disorder might be due to the neurodegeneration of glutamate neurons involved in paradoxical sleep and located within the pontine sublaterodorsal tegmental nucleus. The purpose of the present work was thus to functionally determine first, the role of glutamate sublaterodorsal tegmental nucleus neurons in paradoxical sleep and second, whether their genetic inactivation is sufficient for recapitulating REM sleep behaviour disorder in rats...
December 21, 2016: Brain: a Journal of Neurology
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