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https://www.readbyqxmd.com/read/28522100/pulse-wave-amplitude-reduction-as-a-surrogate-for-cortical-arousal-during-sleep-hypopnea-in-children
#1
Alessandro Amaddeo, Noria Medjahdi, Marta Fernandez-Bolanos, Sonia Khirani, Guillaume Baffet, Brigitte Fauroux
OBJECTIVES: The accuracy of respiratory polygraphy (RP) is limited because of the absence of electroencephalography (EEG). Pulse wave amplitude (PWA) reduction has been shown to be a marker of autonomic activation during arousal, and may represent a substitute for obstructive respiratory-related cortical arousal (RRCA). This study tested the hypothesis that PWA could be a surrogate for RRCA in detecting obstructive hypopnea (OH) in a pediatric population. MATERIALS AND METHODS: Two experienced readers scored 30 consecutive polysomnographies (PSG) using standard scoring rules...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522098/study-of-association-of-severity-of-sleep-disordered-breathing-and-functional-outcome-in-stroke-patients
#2
Rohit Kumar, J C Suri, Rajesh Manocha
OBJECTIVE: Sleep disordered breathing (SDB) is a prevalent yet underrecognized condition that may have major adverse consequences for those affected by it. We performed a prospective observational study to seek a correlation of severity of SDB with the severity of stroke and its functional outcome. METHODS: Patients with history of recent-onset stroke were recruited and underwent overnight polysomnography (PSG) after the acute phase of the stroke was over; for defining hypopneas, 3% and 4% desaturation limits were used, and the apnea-hypopnea index was respectively calculated as AHI3% and AHI4%...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522086/correlates-of-sleep-quality-in-midlife-and-beyond-a-machine-learning-analysis
#3
Katherine A Kaplan, Prajesh P Hardas, Susan Redline, Jamie M Zeitzer
OBJECTIVES: In older adults, traditional metrics derived from polysomnography (PSG) are not well correlated with subjective sleep quality. Little is known about whether the association between PSG and subjective sleep quality changes with age, or whether quantitative electroencephalography (qEEG) is associated with sleep quality. Therefore, we examined the relationship between subjective sleep quality and objective sleep characteristics (standard PSG and qEEG) across middle to older adulthood...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522081/natural-course-and-potential-prognostic-factors-for-sleep-disordered-breathing-in-multiple-system-atrophy
#4
Yasuyoshi Ohshima, Hideaki Nakayama, Naho Matsuyama, Satoshi Hokari, Takuro Sakagami, Tomoe Sato, Toshiyuki Koya, Tetsuya Takahashi, Toshiaki Kikuchi, Masatoyo Nishizawa, Takayoshi Shimohata
OBJECTIVE/BACKGROUND: Multiple system atrophy (MSA) frequently results in the development of sleep-disordered breathing (SDB). Few reports have described the natural course of this phenomenon. The aim of the present study was to determine the natural course of SDB and prognostic factors associated with such conditions in MSA. PATIENTS/METHODS: Twenty-four consecutive patients were recruited with probable MSA, who had not been treated with continuous positive airway pressure (CPAP) and had undergone overnight polysomnography (PSG) more than once following the development of snoring or stridor...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28522080/treatment-of-insomnia-with-tricyclic-antidepressants-a-meta-analysis-of-polysomnographic-randomized-controlled-trials
#5
REVIEW
Yang Liu, Xiaomin Xu, Meixue Dong, Shiyu Jia, Youdong Wei
BACKGROUND: Insomnia represents a significant public health burden worldwide. Antidepressants have often been the insomnia treatment of choice in recent decades. Some tricyclic antidepressants (TCAs) have been shown to improve sleep efficiency. OBJECTIVE: Assess the efficacy and safety of TCAs for the treatment of insomnia using a meta-analysis of randomized control trials (RCTs). METHODS: Relevant studies were identified in electronic databases such as PubMed, Cochrane, Embase, and Web of Science, up until July 2016...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28515846/passive-expansion-of-sub-maximally-dilated-transjugular-intrahepatic-portosystemic-shunts-and-assessment-of-clinical-outcomes
#6
Michael C Hsu, Charles N Weber, S William Stavropoulos, Timothy W Clark, Scott O Trerotola, Richard D Shlansky-Goldberg, Michael C Soulen, Gregory J Nadolski
AIM: To assess for passive expansion of sub-maximally dilated transjugular intrahepatic portosystemic shunts (TIPS) and compare outcomes with maximally dilated TIPS. METHODS: Polytetrafluoroethylene covered TIPS (Viatorr) from July 2002 to December 2013 were retrospectively reviewed at two hospitals in a single institution. Two hundred and thirty patients had TIPS maximally dilated to 10 mm (mTIPS), while 43 patients who were at increased risk for hepatic encephalopathy (HE), based on clinical evaluation or low pre-TIPS portosystemic gradient (PSG), had 10 mm TIPS sub-maximally dilated to 8 mm (smTIPS)...
April 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28501722/spatial-qrs-t-angle-in-patients-with-newly-diagnosed-obstructive-sleep-apnea-syndrome
#7
Paweł Kiciński, Todd Schlegel, Andrzej Dybała, Maciej Zakrzewski, Sylwia Przybylska-Kuć, Wojciech Myśliński, Jerzy Mosiewicz, Stanisław Głuszek, Andrzej Jaroszyński
PURPOSE: The aim of the study was to assess the spatial QRS-T angle (QRS-TA) in a group of newly diagnosed and untreated adult patients with obstructive sleep apnea syndrome (OSAS) and to identify potential factors affecting this parameter. PATIENTS AND METHODS: The study group (PSG-confirmed OSAS) included 62 individuals, aged 51.7±10.3 years. The control group consisted of 25 individuals, aged 46.6±16.6 years with no sleep-disordered breathing. The diagnosis of OSAS and assessment of its severity was based on unattended all-night screening polysomnography...
May 11, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28500380/association-of-t-lymphocyte-immune-imbalance-and-il-10-gene-polymorphism-with-the-risk-of-obstructive-sleep-apnea-in-children-with-obesity
#8
Miao-Shang Su, Li Xu, Kang Xu, Ji-Shan Zheng
PURPOSE: The purpose of this study is to determine the role of T lymphocyte immune imbalance and interleukin (IL)-10 gene polymorphism in the development of obstructive sleep apnea (OSA) in obese children. METHODS: One hundred obese children at high-risk and low-risk for OSA based upon a sleep questionnaire were selected. Peripheral blood T lymphocyte subsets were measured by flow cytometry, and plasma IFN-γ, IL-4, and IL-10 cytokines were detected by ELISA. The relationships between OSA and the above variables were analyzed...
May 12, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28499990/a-state-space-and-density-estimation-framework-for-sleep-staging-in-obstructive-sleep-apnea
#9
Dae Y Kang, Pamela N DeYoung, Atul Malhotra, Robert L Owens, Todd P Coleman
OBJECTIVE: Although the importance of sleep is increasingly recognized, the lack of robust and efficient algorithms hinders scalable sleep assessment in healthy persons and those with sleep disorders. Polysomnography (PSG) and visual/manual scoring remain the gold standard in sleep evaluation, but more efficient/automated systems are needed. Most previous works have demonstrated algorithms in high agreement with the gold standard in healthy/normal (HN) individuals - not those with sleep disorders...
May 8, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28495352/reliability-of-commercially-available-sleep-and-activity-trackers-with-manual-switch-to-sleep-mode-activation-in-free-living-healthy-individuals
#10
Alexia Gruwez, Walter Libert, Lieveke Ameye, Marie Bruyneel
INTRODUCTION: Wearable health devices have become trendy among consumers, but it is not known whether they accurately measure sleep and physical activity parameters. To address this question, we have studied the measured data of two consumer-level activity monitors (Up Move Jawbone(®) (U) and Withings Pulse 02(®) (W)) and compared it with reference methods for sleep and activity recordings, namely the Bodymedia SenseWear Pro Armband(®) actigraph (SWA) and home-polysomnography (H-PSG)...
June 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/28489018/estimating-sleep-parameters-using-nasal-pressure-signals-applicable-to-continuous-positive-airway-pressure-cpap-devices
#11
Jong-Uk Park, Urtnasan Erdenebayar, Eun-Yeon Joo, Kyoung-Joung Lee
This paper proposes a method for classifying sleep-wakefulness and estimating sleep parameters using nasal pressure signals applicable to a continuous positive airway pressure (CPAP) device. In order to classify the sleep-wakefulness states of patients with sleep-disordered breathing (SDB), apnea-hypopnea and snoring events are first detected. Detected epochs as SDB are classified as sleep, and time domain and frequency domain-based features are extracted from epochs that are detected as normal breathing. Subsequently, sleep-wakefulness is classified using a support vector machine (SVM) classifier in the normal breathing epoch...
May 10, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28482089/inter-episode-sleep-bruxism-intervals-and-myofascial-face-pain
#12
K Muzalev, F Lobbezoo, M N Janal, K G Raphael
Study Objectives: Sleep bruxism (SB) is considered as a possible etiological factor for Temporomandibular Disorder (TMD) pain. However, polysomnographic (PSG) studies, which are current "gold standard" diagnostic approach to SB, failed to prove an association between SB and TMD. A possible explanation could be that PSG studies have considered only limited characteristics of SB activity: the number of SB events per hour and, sometimes, the total duration of SB per night. According to the sports sciences literature, lack of adequate rest-time between muscle activities leads to muscle overloading and pain...
May 6, 2017: Sleep
https://www.readbyqxmd.com/read/28480999/validation-of-patient-specific-surgical-guides-for-femoral-neck-cutting-in-total-hip-arthroplasty-through-the-anterolateral-approach
#13
Takashi Sakai, Hidetoshi Hamada, Masaki Takao, Tsuyoshi Murase, Hideki Yoshikawa, Nobuhiko Sugano
BACKGROUND: The aim of this study was to validate the effectiveness of neck-cut patient-specific surgical guides (PSGs) for femoral component implantation in total hip arthroplasty (THA) through the anterolateral approach compared with that without PSG. METHODS: A total of 32 fresh cadaveric hips were included. Anatomical stem implantation with wide-base-contact PSG (AWP group) and without PSG (control group) were compared. The absolute errors between preoperative planning and PSG setting (E1), as well as those between preoperative planning and postoperative component implantation (E2) were evaluated using CT...
May 8, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28477392/validity-of-different-tools-to-assess-sleep-bruxism-a-meta-analysis
#14
REVIEW
Elora Casett, Jéssica C Réus, Juliana Stuginski-Barbosa, André L Porporatti, Maria C Carra, Marco A Peres, Graziela De L Canto, Daniele Manfredini
This systematic review and meta-analysis (MA) aimed to evaluate the diagnostic validity of questionnaires, clinical assessment, and portable diagnostic devices compared to the reference standard method polysomnography (PSG) in assessing sleep bruxism (SB). Two reviewers searched electronic databases for diagnostic test accuracy studies that compared questionnaires, clinical assessment or portable diagnostic devices for SB, with the reference standard method PSG, comprising previous studies from all languages and with no restrictions regarding age, gender or time of publication...
May 6, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28471970/evaluation-of-pulse-oximeter-derived-photoplethysmographic-signals-for-obstructive-sleep-apnea-diagnosis
#15
Yan Li, He Gao, Yan Ma
High prevalence of obstructive sleep apnea (OSA) has increased the demands for more convenient and accessible diagnostic devices other than standard in-lab polysomnography (PSG). Despite the increasing utility of photoplethysmograph (PPG), it remains understudied in underserved populations. This study aimed to evaluate the reliability of a standard pulse oximeter system with an automated analysis based on the PPG signal for the diagnosis of OSA, as compared with PSG derived measures.Consecutive out-patients with suspect OSA completed a PPG monitoring simultaneous with an overnight in-lab standard PSG...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28469718/prevalence-and-risk-factors-of-obstructive-sleep-apnea-syndrome-in-a-saudi-arabian-population
#16
Siraj Omar Wali, Bahaa Abalkhail, Ayman Krayem
BACKGROUND: Obstructive sleep apnea (OSA) is a common disorder worldwide; however, epidemiological studies on its prevalence lack in Saudi Arabia. This study aimed to determine the prevalence and risk factors of OSA in Saudi Arabia. METHODS: The study was performed from 2013 to 2015 in two stages. The screening stage was first; a random sample of Saudi employees (n = 2682) 30-60 years of age completed a survey that included the Wisconsin questionnaire. According to these data, the subjects were categorized as habitual, moderate, or nonsnorers (NSs)...
April 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/28467884/impairment-of-pulmonary-diffusion-correlates-with-hypoxemic-burden-in-central-sleep-apnea-heart-failure-patients
#17
Henrik Fox, Britta Koerber, Thomas Bitter, Dieter Horstkotte, Olaf Oldenburg
PURPOSE: Central sleep apnea (CSA) and Cheyne-Stokes respiration (CSR) are highly prevalent in heart failure (HF) and are linked to increased mortality. Impaired pulmonary diffusion capacity [DLCO] and [KCO]) have been suggested to play a key role in CSA-CSR pathophysiology. This study investigated the relationship between HF, CSR, DLCO and KCO in well-characterized HF patients. METHODS: This prospective study included HF patients with CSR, all patients underwent full overnight polysomnography (PSG) and lung function testing...
April 30, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28455768/sleep-disturbance-in-mild-cognitive-impairment-a-systematic-review-of-objective-measures
#18
REVIEW
Mingyue Hu, Ping Zhang, Chen Li, Yongfei Tan, Guichen Li, Duo Xu, Li Chen
Sleep disturbance frequently occurs in patients with mild cognitive impairment (MCI) and appears to be involved in the cellular and molecular mechanisms of cognitive decline. The aim of this systematic review is to clarify whether patients with MCI demonstrate alterations in certain sleep parameters: total sleep time (TST), sleep efficiency (SE), sleep latency (SL), rapid eye movement latency (REML), percent of rapid eye movement (REM%), arousal index (AI), wake after sleep onset (WASO), slow-wave sleep (SWS), periodic leg movement in sleep (PLMS), and cyclic alternating pattern (CAP) through polysomnography (PSG) and actigraphy...
April 28, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28454604/collaboration-guidelines-between-sleep-physicians-and-dentists-in-the-management-of-obstructive-sleep-apnea-an-american-academy-of-dental-sleep-medicine-and-american-academy-of-sleep-medicine-joint-position-statement
#19
Kannan Ramar, James A Rowley, Stuart F Quan, Kathleen M Bennett, Alan Blanton, Kelly A Carden, Ronald D Chervin, Leslie Dort, Douglas B Kirsch, David A Kristo, Mitchell Levine, Raman K Malhotra, Jennifer L Martin, Eric J Olson, Kevin Postol, Ilene M Rosen, Thomas Schell, David Schwartz, Rose Sheats, Harold Smith, Nathaniel F Watson, Terri E Weaver
The boards of directors of the American Academy of Dental Sleep Medicine (AADSM) and the American Academy of Sleep Medicine (AASM) approved this position statement to provide more detailed clarification regarding the appropriate role of dentists and physicians, respectively, in the treatment and ongoing management of obstructive sleep apnea (OSA) using oral appliance therapy (OAT). In order to promote high quality, patient-centered care for patients who have chosen OAT, and to effectively and collaboratively manage these patients, dentists and sleep physicians should follow the recommendations in the updated clinical practice guideline for the treatment of OSA and snoring with OAT, which was published jointly by the AADSM and AASM in 2015...
April 25, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28454600/sleep-and-breathing-the-first-night-after-adenotonsillectomy-in-obese-children-with-obstructive-sleep-apnea
#20
Aliva De, Temima Waltuch, Nathan J Gonik, Ngoc Nguyen-Famulare, Hiren Muzumdar, John P Bent, Carmen R Isasi, Sanghun Sin, Raanan Arens
STUDY OBJECTIVES: There are few studies measuring postoperative respiratory complications in obese children with obstructive sleep apnea (OSA) undergoing adenotonsillectomy (AT). These complications are further compounded by perioperative medications. Our objective was to study obese children with OSA for their respiratory characteristics and sleep architecture on the night of AT. METHODS: This was a prospective study at a tertiary pediatric hospital between January 2009-February 2012...
April 25, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
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