The K-alpha sleep electroencephalographic (EEG) phenomenon is characterized by periodic (approximately 20-40 seconds) K-complexes, immediately followed by alpha-EEG activity (7.5-11 Hz) of 0.5- to 5.0-second duration. A group of 14 subjects with the periodic K-alpha anomaly was found to have a similar distribution pattern of interevent intervals as compared with previously published data for sleep-related periodic limb movements during sleep (PLMS). Sleep parameters and somatic symptoms of 30 patients with K-alpha were compared with 30 patients with PLMS. The periodic K-alpha group was predominantly female, younger, exhibiting more slow-wave sleep, gastrointestinal symptoms and muscular complaints and fewer movement arousals on overnight polysomnography. The K-alpha group presented uniformly with complaints of unrefreshing sleep, often associated with fibromyalgia and chronic fatigue syndrome. The PLMS group was predominantly male, showed greater sleep disruption and presented with a variety of sleep-related symptoms.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/sleep/19.3.200 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Noninvasive biomarkers for the detection of GERD-induced pulmonary injury.
Surg Endosc
December 2024
Norton Thoracic Institute, St. Joseph's Hospital and Medical Center, 500 W Thomas Road, Phoenix, AZ, 85013, USA.
Background: The role of gastroesophageal reflux in progressive lung damage is increasingly recognized. We have proposed, based on our work with lung transplant recipients, a novel immune mechanism of pulmonary injury after aspiration of gastric contents, during which higher levels of normally sequestered lung self-antigens (SAgs) collagen V (Col-V) and K-alpha-1 tubulin (Kα1T) in circulating small extracellular vesicles (EVs) induce the production of self-antibodies (SAbs) anti-Col-V and anti-Kα1T. Thus, we aimed to determine whether levels of SAbs or SAgs increased in an animal model of aspiration-induced lung damage in a nontransplant setting.
View Article and Find Full Text PDFHyperuniformity classes of quasiperiodic tilings via diffusion spreadability.
Phys Rev E
June 2024
Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA; Department of Physics, Princeton University, Princeton, New Jersey 08544, USA; Princeton Institute of Materials, Princeton University, Princeton, New Jersey 08544, USA; and Program in Applied and Computational Mathematics, Princeton University, Princeton, New Jersey 08544, USA.
Hyperuniform point patterns can be classified by the hyperuniformity scaling exponent α>0, that characterizes the power-law scaling behavior of the structure factor S(k) as a function of wave number k≡|k| in the vicinity of the origin, e.g., S(k)∼|k|^{α} in cases where S(k) varies continuously with k as k→0.
View Article and Find Full Text PDFClinical significance of R-TEG in severe burn patients with coagulation dysfunction.
Injury
December 2022
Department of Burn Surgery, Institute of Burn Research of Inner Mongolia, The Third Affiliated Hospital of Inner Mongolia Medical University, Baogang Hospital, No. 20 Shaoxian Road, Kundulun District, Baotou 014010, China. Electronic address:
Introduction: The aim of this study was to retrospectively analyze Thrombelastography (TEG) data of severe burn patients to provide a clinical basis for timely diagnosis and treatment of coagulation dysfunction.
Methods: The present study comprised burn patients with full thickness TBSA ≥ 60%. The patients included in the study were admitted to the Third Affiliated Hospital of Inner Mongolia Medical University between March 2019 and March 2022 and died within 10 days.
Usability and inter-rater reliability of the NeuroMotion app: A tool in General Movements Assessments.
Eur J Paediatr Neurol
July 2021
Linköping University, Linköping, Sweden; Neuropediatric Unit, Department of Women's and Children's Health, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden. Electronic address:
Background: Early intervention after perinatal brain insults requires early detection of infants with cerebral palsy (CP). General Movements Assessments (GMA) in the fidgety movement period has a high predictive value for CP.
Aim: To investigate the NeuroMotion™ app's usability regarding film quality and user experience and to assess the inter-rater reliability of GMA in a neonatal risk group.
Effects of storage time and temperature on thromboelastographic analysis in dogs and horses.
Vet Clin Pathol
March 2021
Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Pretoria, South Africa.
Background: The accessibility of thromboelastography (TEG) to general practitioners is limited by short sample storage times (30 minutes) and storage temperatures (20-23°C).
Objectives: We aimed to evaluate the stability of canine and equine citrated blood samples when stored for extended periods of time, both at room temperature (RT) (20-23°C) and refrigerator temperature (FT) (2-7.5°C).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!