
Substantial Equivalence of iSlpr™ and SomnoDent® Classic in the Treatment of Snoring and Mild to...
Sleep ApneaSnoringThe study is a thirty three week, prospective, open-label, randomized, parallel-group non-inferiority study. The study aims to investigate the Substantial Equivalence of a novel mandibular device called iSlpr™, produced by BioAnalytics, to a currently approved device, SomnoDent® Classic, in the treatment of mild to moderate Obstructive Sleep Apnoea (OSA) and snoring.

Sleep and Pain Sensitivity
Sleep ApneaChronic Pain SyndromeThis project will assess patients with diagnosed obstructive sleep apnea, to investigate the impact of poor sleep on central pain mechanisms. Furthermore, the project will explore if restoring good sleep hygiene can improve the central pain mechanisms that may be associated with the risk of chronic pain.

Recovery of Ventilation After General Anesthesia in Morbidly Obese Patients
Morbid ObesityOpioid-Related Disorders2 moreThis is an observational study of morbidly obese patients recovering from general anesthesia after weight-loss surgery. The investigators aim to assess ventilatory function and how this is influenced by the diagnosis of obstructive sleep apnea (OSA), baseline ventilatory status, as well as pharyngeal collapsibility of patients who are recovering from anesthesia and treated for pain with opioids. The investigators hypothesize that patients with OSA, chronic (baseline) hypoventilation and increased pharyngeal collapsibility, will be more vulnerable to opioid-induced ventilatory depression.

High Flow Nasal Cannula Therapy for Childhood OSA
Obstructive Sleep ApneaThe main objective of this study is to evaluate the efficacy of high-flow nasal cannula (HFNC) therapy in children with OSA. Children and adolescents aged 6 to 18 years old with a diagnosis of moderate-to-severe OSA requiring CPAP therapy will be recruited. In phase 1 study, eligible subject will be recruited for HFNC therapy titration with PSG to assess treatment efficacy. After titration, if HFNC therapy is shown to be effective, the participants will be recruited into the phase 2 intervention period to evaluate the compliance and quality of life with HFNC therapy. At baseline and follow-up visits, neurobehavioural and quality of life surveys will be completed, compliance data will be obtained.

Reinforcement of Upper Airway Muscles in Patients With OSAS
Obstructive Sleep Apnea SyndromeThis study will investigate the effectiveness of a simple and quick myofunctional reeducation protocol of the tongue in reducing the obstructive sleep apnea syndrome (OSAS) severity.

Effect of CPAP vs Control on Nocturnal Dipping in Normotensive Patients With Obstructive Sleep Apnea...
Sleep ApneaObstructiveThis is an open-label, parallel, prospective, randomised control trial evaluating the effect of Continuous Positive airway pressure (CPAP), the standard treatment for obstructive sleep apnea (OSA) versus control (diet and lifestyle advice) on dipping status and blood pressure parameters in 100 non-dipper normotensive patients with moderate to severe obstructive sleep apnea and without established cardiovascular or metabolic disease.

Sleep Apnea in Head and Neck Cancer Patients at the University of Colorado
Obstructive Sleep ApneaSquamous Cell Carcinoma of Head and NeckObstructive sleep apnea (OSA) is increasingly recognized in patients with squamous cell carcinoma of the head and neck (SCCHN). The prevalence prior and after cancer therapy is not well understood. OSA is identified as a contributing factor for daytime somnolence and quality of life (QOL), yet treatment of OSA in the SCCHN population has not been studied. The investigators hope to identify the disease course of sleep apnea, risk factors for development, and impact on QOL with treatment of OSA in a population of patients with SCCHN.

Effect of Tibet Rhodiola Capsule on Hypoxia and Cardiovascular Risk Factors in Patients With Obstructive...
Obstructive Sleep ApneaThe purpose of this study is to evaluate the effect of Tibet Rhodiola Capsule on hypoxia and the cardiovascular risk factors in patients with mild to moderate OSA.

The Effects of Inspiratory Muscle Training in Patients With Heart Failure and Obstructive Sleep...
Chronic Heart FailureThis research aims to evaluate the effects of inspiratory muscle training (IMT) on apnea hypopnea index, sleepiness, sleep quality, cognitive function, motor task, executive function, quality of life, chemoreflex sensitivity and vagal modulation of heart rate in patients with heart failure and obstructive sleep apnea syndrome.

PFO Closure for Obstructive Sleep Apnoea
Patent Foramen OvaleObstructive Sleep ApneaObstructive sleep apnoea (OSA) is a condition which involves episodes of interrupted breathing during sleep due to repetitive narrowing or collapse of the throat. These episodes are usually associated with a drop in blood oxygen levels and brief awakenings, which disrupt the sleep of those affected and can lead to daytime sleepiness. OSA is associated with an increased risk of heart disease and stroke. In some individuals, the low oxygen levels in the blood can be made worse by also having a small hole in the heart, called a patent foramen ovale (PFO). This hole is present at birth in everyone, but in some people (about 30% of the normal population) it fails to close. Usually a PFO does not cause any medical problems. However, it may be recommended to have a PFO closed by key-hole surgery if someone suffers a stroke, severe migraine or if they are professional divers. There is a higher incidence of PFO in patients with OSA (25-50%) compared to the wider population and this may account for some of the observed increased risk of heart disease and stroke in patients with OSA. This study will assess the number of patients with OSA who also have a PFO, and whether closing the PFO can improve the symptoms of OSA (e.g. sleepiness, exercise capacity and general well-being), thereby enabling the patient to not be reliant on treatment for OSA. If the study shows that closing the PFO is beneficial then the investigators will assess in a larger study if this treatment can also reduce heart disease and strokes.