Active clinical trials for "Sleep Apnea, Obstructive"

The aim of the study is to test the hypothesis that a new device would produce a significant decrease in obstructive breathing events during sleep as indexed by the Apnea Hyperpnoea Index (AHI) or Respiratory Disturbance Index (RDI) and measures of oxygen saturation during sleep.

Many individuals with Down syndrome (DS) have breathing problems during sleep. This is called obstructive sleep apnea syndrome (OSAS). OSAS is very common in individuals with Down syndrome because of the shape of their face and tongue and because of their low muscle tone. OSAS can cause a lot of health problems including behavioral and learning problems as well as heart problems. The purpose of this research study is to look at the effects of treating OSAS in individuals with Down syndrome with a machine called Continuous Positive Airway Pressure (CPAP). The investigators want to see if treatment of OSAS improves learning, behavior and heart problems.

This study aims to investigate the benefits of using first line heated humidification. The primary objective of this research is to determine the effect of high levels of humidification delivered by ThermoSmart™ on CPAP adherence. In addition, to determine if it is possible to predict which patients benefit the most (i.e. be more adherent with therapy) from high levels of humidification delivered by ThermoSmart.

Automatically titrating continuous positive airway pressure (APAP) and continuous positive airway pressure (CPAP) are considered first-line treatments for obstructive sleep apnea. There is a growing body of evidence that suggests that early patient education and intervention may improve adherence with positive airway pressure. The investigators plan a prospective, randomized trial to see if telemonitoring in the first several weeks of PAP therapy improves adherence following 3 months of treatment.

The obstructive sleep apnea/hypopnea syndrome (OSAS) is a common disease (2-4% of the general population) that generates intermittent hypoxemia and sleep fragmentation. OSAS is associated with various metabolic disorders such as metabolic syndrome, type 2 diabetes. OSAS is a risk factor for cardio-vascular diseases by increasing morbidity/mortality. OSAS patients suffer from excessive daytime sleepiness (EDS), a symptom also responsible for at least 30% of traffic accidents but also other cognitive disorders with significant impact on quality of life. OSAS generates oxidative stress, inflammation and resistance to insulin and other systemic metabolic dysregulation of many whose levels are correlated with the severity of the disease. Treatment with Continuous Positive Airway Pressure (CPAP) has clearly demonstrated its effectiveness to eliminate apneas and improve EDS but it is sometimes difficult to accept and/or poorly tolerated, limiting its effectiveness. Weight loss and regular physical activity are clearly recommended but rarely done in clinical practice. A few studies have applied to study the effects of rehabilitation training (REE) on the sleep apnea patients and have shown an improvement in sleep quality, reduction of awakenings and arousals from sleep and the Index of Apnea/Hypopnea (AHI), but their methodology was questionable, and the number of patients included was too low. The investigators hypothesis is that an in-patient multidisciplinary rehabilitation program comprising educational activities, dietary management and individualized exercise training (IET) will decrease OSAS severity, improve sleep quality and symptoms (EDS, fatigue, QoL). This IET program (24 sessions during 4 weeks) could also help to improve many metabolic dysregulation, inflammation and oxidative stress (also markers of cardiovascular risk). Leptin, a hormone involved in regulating appetite, energy expenditure and ventilatory control is increased in OSA (mechanism of leptin resistance). The improved sensitivity to leptin may play a role in enabling a better control of ventilation in these patients.

Introduction: It is unclear whether exercise training with or without Continuous Positive Airway Pressure (CPAP) and Oral Appliance (OA) is more effective in reducing symptoms of Obstructive Sleep Apnea (OSA) than treatment solely with CPAP or OA. Objective: In patients with moderate OSA, the investigators will evaluate the effect on the subjective and objective measures of sleep, quality of life and mood of different forms of treatment: exercise training of 4 months; exercise training of 4 months associated with CPAP and OA; treatment with CPAP and treatment with OA. Material and Methods: Sixty male patients (25-65 years, sedentary lifestyle, Body Mass Index (BMI) < 35kg/m2, Apnea-Hypopnea Index (AHI) between 15-30/h, Epworth sleepiness scale > 9) will be divided into three groups: CPAP+exercise group (CE; n=20), OA+exercise group (AE; n=20), and Exercise training group (E; n=20). The patients in groups CE and AE will complete two months of treatment with CPAP or OA to examine the separate effects of these devices. As the patients of the E group did not use the CPAP but will undergo four months of exercise training. After this initial step, patients in CE and AE groups will undergo four months of exercise training associated with CPAP or OA. The investigators will evaluate the subjective sleep parameters (sleep disorders questionnaire, the Epworth Sleepiness Scale, sleep diaries) and objective (polysomnography), Short Form Health Survey (SF-36), Questionnaire Profile of Mood States (POMS) and anthropometric measurements (neck circumference and body composition), the incremental exercise test (ergospirometry) and the one Repetition Maximum test (1RM).

This study will evaluate the safety, tolerability, and effect of multiple doses of suvorexant (MK-4305) on respiratory function in participants with mild to moderate obstructive sleep apnea (OSA) compared to administration of placebo. The primary hypothesis of this study is that multiple doses of MK-4305 do not produce a clinically significant increase in Apnea-Hypopnea Index (AHI) in participants with mild to moderate OSA, as compared to placebo.

Upper airway resistance during sleep can present with a range of symptoms from simple snoring (SS) through to severe obstructive sleep apnea (OSA). Pharyngeal narrowing or collapse leads to reduction or cessation in airflow during sleep, and is associated with loud snoring. The investigators hypothesized that regular singing exercises could strengthen pharyngeal muscles and/or increase their resting tone, and lead to an improvement of symptoms and thus quality of life in patients with all forms of snoring.

The purpose of this research study is to examine the effects of two commonly used anesthetic drugs, dexmedetomidine and propofol, have on the shape and muscle tone of the upper airway in children, adolescents, and young adults with a history of obstructive sleep apnea (OSA) having an MRI scan. The results of this study will help in making the best decisions regarding the anesthesia medications that are most appropriate for children, adolescents, and young adults with OSA during MRI studies.

The aim of this randomized, double-blinded, sham-controlled cross-over trial is to demonstrate the effectiveness of continuous transcutaneous electrical stimulation of the pharyngeal dilator muscles to reduce sleep-disordered breathing.