Results 141 to 150 of about 92,616 (300)

Neurometabolic Response to Apneic Stimuli Tracks Global Grey Matter Volume Deficits in Patients With Obstructive Sleep Apnea

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Obstructive sleep apnea (OSA) has been linked to cortical atrophy and increased risk of neurodegeneration, a process potentially mediated by neurometabolic dysregulation. Recent work using high temporal‐resolution metabolic MRI found greater changes in the cerebral metabolic rate of oxygen consumption (CMRO2) during cued breath‐hold stimuli ...
Jeffrey B. Dennison   +5 more
wiley   +1 more source

The Potential of Ensemble‐Based Automated Sleep Staging on Single‐Channel EEG Signal From a Wearable Device

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Machine‐learning‐based sleep staging models have achieved expert‐level performance on standard polysomnographic (PSG) data. However, their application to EEG recorded by wearable devices remains limited by non‐conventional referencing montage and the lack of benchmarking against PSG.
Federico Salfi   +6 more
wiley   +1 more source

Inter-eye comparison of retinal oximetry and vessel caliber between eyes with asymmetrical glaucoma severity in different glaucoma subtypes

open access: yesClinical Ophthalmology, 2016
Clarissa Shu Ming Cheng,1,2 Yi Fang Lee,2 Charles Ong,3 Zhu Li Yap,2 Andrew Tsai,2 Aditi Mohla,2 Monisha E Nongpiur,4 Tin Aung,2,4 Shamira A Perera2,4 1Department of Ophthalmology, Tan Tock Seng Hospital, 2Department of Ophthalmology, Singapore National
Cheng CS   +8 more
doaj  

Delta‐9‐Tetrahydrocannabinol (THC) Before Bedtime: Feasibility and Mechanistic Pilot Study on Sleep and Cardiac Autonomic Activity

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Disordered sleep is a common reason individuals report using cannabis, yet the physiological effects of Δ9‐tetrahydrocannabinol (Δ9‐THC) on sleep and autonomic regulation remain incompletely understood. Early studies reported acute sleep‐promoting effects of Δ9‐THC, but chronic use has been associated with disrupted sleep and possible ...
Joshua E. Gonzalez   +9 more
wiley   +1 more source

Nocturnal Sleep Breathing Patterns in Healthy Adolescents Residing at Very High Altitudes in Bolivia

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Data on sleep and respiratory patterns among adolescents residing at very high altitude (> 3500 m) remain scarce, and altitude‐related physiological differences may influence these parameters. Studying adolescents at different very high altitudes is crucial, as subtle environmental variations could affect sleep‐related oxygenation and ...
Keaton Patterson   +8 more
wiley   +1 more source

Enhanced Risk Stratification of Atrial Fibrillation Detected After Ischemic Stroke and TIA: The Role of Apnoea–Hypopnoea Index and Hypoxic Burden—A Study From the Bern Sleep‐Stroke Registry

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Sleep‐disordered breathing is an independent risk factor for stroke and atrial fibrillation. Accurate assessment of atrial fibrillation in stroke patients with sleep‐disordered breathing is crucial for secondary prevention. This study aimed to determine whether combining apnoea–hypopnoea index and hypoxic burden improves risk stratification ...
Xiaoli Yang   +14 more
wiley   +1 more source

Vascular Dynamics During Respiratory Arousal From Sleep Assessed by Oximeter‐Based Vascular Stiffness Measures

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Cortical arousals significantly impact obstructive sleep apnoea (OSA) pathophysiology and cardiovascular consequences, often mediated by sympathetic activation. While pulse oximetry (PPG) provides an accessible reflection of autonomic responses such as changes in pulse rate (PR) and pulse wave amplitude (PWA), the dynamic influence on other ...
Christian Strassberger   +3 more
wiley   +1 more source

PFA Under Deep Sedation and Non‐Invasive Monitoring in Atrial Fibrillation Patients With Obstructive Sleep Apnea

open access: yesPacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Background Clinical data about pulsed field ablation (PFA) under deep sedation among patients with obstructive sleep apnea (OSA) are limited, while the optimal periprocedural monitoring is not established. We report our experience in PFA among patients with atrial fibrillation (AF) and OSA, using a continuous non‐invasive respiratory and ...
Dionyssios Leftheriotis   +6 more
wiley   +1 more source

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