View clinical trials related to Sleep Apnea, Obstructive.
Filter by:This study intends to determine whether continuous positive airway pressure (CPAP) can reduce arterial stiffness (measured by pulse wave velocity) in nonsleepy as well as in sleepy patients with obstructive sleep apnea .
There is accumulating evidence for obstructive sleep apnea (OSA) as an independent risk factor for paroxysmal atrial fibrillation and for high recurrence rates of atrial fibrillation after ablation therapy. We have previously shown that simulated OSA triggers premature atrial beats (PABs) by acute changes in intra-thoracic pressure. Most episodes of atrial fibrillation are initiated by PABs. However, the origin of PABs induced by intra-thoracic pressure swings is unknown. This study investigates the origin of premature atrial beats induced by intra-thoracic pressure changes that simulate obstructive sleep apnea in patients with atrial fibrillation.
The purpose of this post-market observational study is to assess the effectiveness and patient perception of benefit of the ReVENT Sleep Apnea System in patients diagnosed with Obstructive Sleep Apnea due to primary tongue base closure. The ReVENT Sleep Apnea System is a minimally invasive surgical approach to treat Obstructive Sleep Apnea. The ReVENT Sleep Apnea System consists of an implanter kit and tongue implants. The implants are permanently implanted in the tongue during a minimally invasive outpatient surgical procedure to prevent tongue base closure during sleep.
The investigators aim to investigate the effect of dexmedetomidine on the perioperative respiratory complications in this patient population undergoing both awake and deep tracheal extubation.
The purpose of this study is to examine whether CPAP therapy can reduce or eliminate hepatic fat accumulation in obese children and adolescents.
The purpose of this study is to compare cardiovascular physiological adaptation to intermittent hypoxia (IH) of nonobese healthy subjects. The exposure will be two periods of two weeks (IH versus exposure "placebo hypoxia"). The investigators will use pharmacological tools, peripheral vasodilator (amlodipine) or specific blocker of angiotensin receptor (valsartan) versus the taking of a placebo. The allocation of the tool and the exhibition will be randomized (HI / placebo, valsartan / amlodipine). The outcome measures evaluated concern the cardiovascular system, systemic inflammation and tissular and glucose metabolism. The investigators assume an increase in arterial resistance during the intermittent hypoxia compared to the control group, these being dependent on sympathetic tone. The investigators hypothesize that the metabolic alterations that will be observed after experimental simulation (IH and fragmentation of sleep for 15 consecutive nights) will be less severe in the valsartan group than in the amlodipine group in comparison with the placebo group. A serum bank and a gene bank will be performed for the requirements of subsequent studies if necessary.
This is a randomized clinical trial in U.S. Veterans to evaluate the impact of treatment for obstructive sleep apnea (OSA) on the effectiveness of cardiac rehabilitation, including impact on exercise capacity, disability, and quality of life.
This study is being conducted to determine whether inhaling exhaled carbon dioxide is effective for the treatment of sleep apnea. A mild increase in this gas can stimulate the respiratory drive by 2-3 fold, which in turn can stimulate the upper airway dilator muscles and decrease the severity of obstructive sleep apnea by at least 50% in selected patients.
This study is being done to see if we can improve the way we manage patients' airways. In some instances patients who have a beard, who do not have teeth or have breathing problems during sleep present a challenge to the anesthesiologist. In such patients, it is sometimes difficult to provide air/oxygen for breathing using a mask. The study doctors would like to investigate a new method for holding a mask on the face of those patients. They are interested in comparing a new method against two older methods. They believe the new method will deliver a larger amount of air to the lungs. This information may help doctors provide better care for patients who have beards, no teeth, or breathing problems during sleep.
Diabetes self-management is important to help adults with type 2 diabetes achieve glucose control. Obstructive sleep apnea often co-exists with type 2 diabetes and may act as a barrier to diabetes self-management and glucose control. We will examine if treatment of obstructive sleep apnea with continuous positive airway pressure (CPAP), combined with diabetes education, results in improved diabetes self-management and glucose control.