Results 151 to 160 of about 3,379 (196)

Estimation of Total Sleep Time From Respiratory Event Intervals in Sleep Disordered Breathing

Journal of Sleep Research, EarlyView.
ABSTRACT The correct identification of respiratory events and estimation of total sleep time (TST), done in a sleep clinic with polysomnography (PSG), are central elements in the diagnostic process of sleep‐disordered breathing and in the quantification of its severity with the apnoea‐hypopnea index (AHI). However, total sleep time may not be available
Luca Cerina, Gabriele B. Papini, Sebastiaan Overeem, Rik Vullings, Pedro Fonseca   +4 more
wiley   +1 more source

Does Measurement Site Matter? A Comparison Between Finger, Forehead, and Toe Pulse Oximetry Measurements in Polysomnography

Journal of Sleep Research, EarlyView.
ABSTRACT Accurate peripheral blood oxygen saturation (SpO2) measurements are critical for evaluating sleep patients, particularly those with frequent desaturations due to pathological breathing events. We compared synchronised SpO2 measurements obtained from three anatomical sites (finger, forehead and toe) in patients undergoing routine Type 1 ...
Kellie R. Strickland, Chris J. Brown, Leigh Wilks, Peter K. Dunn, Mark A. Holmes   +4 more
wiley   +1 more source

The Relative Contributions of Arousal Presence and Arousal Intensity to Post‐Respiratory‐Event Ventilation in Obstructive Sleep Apnea

Journal of Sleep Research, EarlyView.
In obstructive sleep apnea, the breathing after each obstructive event is affected by cortical arousal. Across two cohorts (N = 1781 and N = 67), arousal presence raised post‐event ventilation by 17–30%Eupnea, with each intensity step adding 1–4%Eupnea, independent of chemoreflex drive.
Junyan Zhang, Dwayne Mann, Timo Leppänen, Ali Azarbarzin, Scott Sands, Juha Töyräs, Philip Terrill   +6 more
wiley   +1 more source

A Multimodal Machine Learning Model for Framingham Risk Score–Based Cardiovascular Risk Stratification in Patients With Obstructive Sleep Apnea

Journal of Sleep Research, EarlyView.
ABSTRACT Machine learning provides a powerful tool to capture complex, nonlinear patterns in biomedical data and enhance precision risk stratification. In this study, we applied a multilayer perceptron (MLP) framework to classify Framingham Risk Score–based cardiovascular risk categories in patients with obstructive sleep apnea (OSA).
Feng Zhao, Yin Li, Chenyang Li, Huajun Xu, Enhui Zhou, Weijun Huang, Huaming Zhu, Jian Guan, Hongliang Yi, Jianyin Zou, Nutan Chen   +10 more
wiley   +1 more source

The Effects of Nasal and Multi‐Level Upper Airway Surgery on Upper Airway Collapsibility and Non‐Anatomical Endotypes in People With Obstructive Sleep Apnoea—A Pilot Study

Journal of Sleep Research, EarlyView.
ABSTRACT Nasal breathing is the preferred route of breathing during sleep. Indeed, nasal blockage can cause obstructive sleep apnoea (OSA) in otherwise healthy people. Whilst multi‐level pharyngeal surgery reduces OSA severity, efficacy varies and changes in OSA pathophysiology post‐surgery have not been well characterised.
Amal M. Osman, A. Simon Carney, Himani Joshi, Phuc Nguyen, Peter Catcheside, Eng H. Ooi, Danny J. Eckert   +6 more
wiley   +1 more source

Does Hypoxic Burden Better Explain Sex Differences in Functional Impairments Than Apnoea‐Hypopnoea Index in Obstructive Sleep Apnoea?

Journal of Sleep Research, EarlyView.
ABSTRACT Women with obstructive sleep apnoea (OSA) report more severe functional impairments than men, despite lower apnoea‐hypopnoea index (AHI) values. This raises questions about the adequacy of AHI for capturing OSA severity. We explored sex differences in functional outcomes in OSA patients and examined whether AHI or hypoxic burden (HB) better ...
Urvashi Nanda, Yu Sun Bin, Philip de Chazal, Andrew S. L. Chan, Amanda Piper, Kristina Kairaitis, Peter A. Cistulli, Brendon J. Yee, on behalf of the Sydney Sleep Biobank Investigators, Peter Cistulli, Philip de Chazal, Yu Sun Bin, Lu Fu, Benjamin Tong, Glenn Stewart, Gary Cohen, Andrew S. L. Chan, Anna Mohammadieh, John Wheatley, Kristina Kairaitis, Stephen Lambert, Tracey Burns, Brendon Yee, Amanda Piper, Kerri Melehan, Amy Jackson, Gislaine Gauthier   +26 more
wiley   +1 more source

Impaired Alertness Correlates With Chronic Anxiety: A Prospective Tertiary University Centre Cohort

Journal of Sleep Research, EarlyView.
ABSTRACT The Maintenance of Wakefulness Test (MWT) is a widely used objective measure of daytime alertness, especially in patients with sleep disorders at increased risk of accidents. Anxiety and depression are common in this population and may influence subjective sleepiness and objective alertness.
Anice Borjon, Lucie Bobin, François Ricordeau, Lucas Marces, Hugo Fornelli, Thierry Petitjean, Amandine Viccica, Elena Charbonnier, Emeric Stauffer, Barbara Charbotel, Jacques Taillard, Renaud Tamisier, Laure Peter‐Derex, Pierre Tankéré   +13 more
wiley   +1 more source

Impact of Hypoxemia Severity on Cardiac Autonomic Regulation in Children With Sleep‐Disordered Breathing: A McGill Oximetry‐Based Analysis

Journal of Sleep Research, EarlyView.
ABSTRACT Sleep‐related breathing disorders (SRBD) represent a significant paediatric health concern. Traditional polysomnographic indices, such as the apnoea–hypopnoea index, may not fully capture the physiological burden of paediatric SRBD, highlighting the need to better characterise the impact of nocturnal hypoxemia on cardiac autonomic regulation ...
Gintare Oboleviciene, Ausra Snipaitiene, Valdone Miseviciene   +2 more
wiley   +1 more source

Effect of Sleep, Sleep Apnoea and Insomnia Symptoms on Depressive Symptoms in Combined harmonised Community‐Based Cohorts—A Cross‐Sectional Analysis

Journal of Sleep Research, EarlyView.
ABSTRACT Sleep and sleep disturbances, such as sleep apnoea and insomnia, are linked to mental health, particularly, depressive symptoms. It remains unclear however, if sleep fragmentation or hypoxia is primarily linked to depressive symptoms and how insomnia symptoms affect this relationship in samples free of clinical referral bias. We analysed cross‐
Jenny Theorell‐Haglöw, Gary A. Wittert, Robert J. Adams, Sarah L. Appleton, Ulf Hammar, Amy C. Reynolds, Nathaniel S. Marshall   +6 more
wiley   +1 more source

A Double‐Blind Randomised Controlled Crossover Trial of the Effect of Blue‐Enriched Ambient Light on Sleep in Older Adults With Sleep Disturbance: The CleverLights Study

Journal of Sleep Research, EarlyView.
ABSTRACT Light interventions have been investigated for treating sleep disturbances in older adults; however, findings are mixed. This proof‐of‐concept trial investigated the effect of blue‐enriched ambient light on electroencephalographic (EEG) sleep in older adults with self‐reported poor sleep.
Teha B. Pun, Craig L. Phillips, Nathaniel S. Marshall, Matthew Rahimi, Rick Wassing, Maria Comas, Angela L. D'Rozario, Camilla M. Hoyos, Delwyn J. Bartlett, Wenye Hu, Sharon L. Naismith, Sean Cain, Svetlana Postnova, Ronald R. Grunstein, Christopher J. Gordon   +14 more
wiley   +1 more source