Active clinical trials for "Sleep Apnea, Obstructive"

This study will investigate the efficacy of the FPH modified positive airway pressure (PAP) device with or without SensAwake; and with different pressure support in OSA participants; in both an in-home and in-lab environment. Comfort, compliance and the accuracy of the pressure delivery will also be evaluated. The FPH device will be compared to a market released product.

In this study the investigators will determine whether using high flow oxygen in moderate-to-severe Obstructive Sleep Apnea patients following a major non cardiac surgery is more efficacious than usual care in preventing decrease in oxygen level in blood.

This study compares the effect of Montelukast vs Placebo on Flow Mediated Dilatation of the Brachial Artery (FMD) in patients with obstructive sleep apnea syndrome.

Mandibular advancing oral appliances (OAm) are an effective and increasingly common treatment modality for the management of obstructive sleep apnea (OSA) in adults. The effectiveness of OAm therapy, however, is dependent on a high level of patient adherence, which may be negatively impacted by treatment side effects - the most significant of which are occlusal changes and tooth movement. The proposed pilot study will evaluate the efficacy of a novel implant supported OAm in 10 OSA patients who have already been successfully treated with a traditional OAm. The study will compare OSA specific outcomes with traditional OAm use against novel oral appliance use after one month. This study could potentially validate the novel design features of an effective treatment option for OSA that does not result in tooth movement, which is a significant side effect shared by all existing OAm devices. Ultimately, this study could lead to increased treatment adherence and better OSA patient health outcomes in the future.

Current practice guidelines recommend obstructive sleep apnea (OSA) patients to stay in the post anesthetic care unit (PACU) until the risk of respiratory depression has subsided. Inevitably, a greater demand on hospital resource utilization in these patients will increase health care cost. Polysomnography (PSG) and screening questionnaires can identify OSA but they are limited by accessibility and false positive results, respectively. Inaccurate OSA identification misguides postoperative surveillance plan. In contrast with MRI and CT scans, ultrasound is more accessible and more likely a practical tool for OSA screening. However, before clinical application, airway ultrasound (US) exam must undergo vigorous testing to check its utility, accuracy, inter-observer reliability and its ability to identify OSA and its severity.

In this paper, it is postulated that in sedentary patients with moderate-severe sleep apnea diagnosed by a sleep test, an increase in physical activity stimulated by the use of a pedometer during a period of 6 months can reduce the severity of OSAS by decreasing the number of respiratory events during sleep and when controlling for vascular risk factors.

The aim of this study is to evaluate the efficacy of a combination of Continuous Positive Airway Pressure (CPAP) and a Mandibular Advancement Device (MAD) on nocturnal Blood Pressure control in hypertensive patients in obstructive sleep apnea low CPAP compliers (less than 4 hours per night). Hypertensive patients demonstrating low CPAP adherence will be selected during a screening visit; they will be then randomized to one of the three following arms: Education to CPAP ("CPAP only"), Treatment by a MAD ("MAD only") or a combination of both CPAP and MAD ("CPAP+MAD"). Mean systolic, diastolic, diurnal and nocturnal blood pressure will be assessed during 24-h Ambulatory Blood Pressure monitoring, before and after a 3-month treatment intervention. Biological laboratory parameters, patients reported outcomes (daytime sleepiness and Quality of Life), will also be evaluated before and after 3 months of treatment.

The investigators hypothesize that obstructive sleep apnea (OSA) may lead to increased formation/accumulation of advanced glycation ends (AGEs), and that the increase in AGEs is contributed in part by increased insulin resistance. The investigators further hypothesize that AGEs contribute to vascular endothelial damage and ultimately atherosclerosis in OSA. The objectives of this study are: To explore the relationship between insulin resistance and AGEs in OSA To study the relationship between AGE and vascular endothelial dysfunction in OSA To study the relationship between AGE and early atherosclerosis in OSA

The aim of this study is to evaluate whether a smaller dose of caffeine sodium benzoate 10 mg/kg IV is as effective as 20 mg/kg IV in decreasing the number of children who develop post extubation adverse upper airway respiratory events compared to placebo.

Obstructive sleep apnea (OSA) is an extremely common disease with inadequately explored neurocognitive consequences. The investigators will study OSA patients before and after treatment to understand how OSA changes decision making abilities, and whether treatment can reverse such cognitive changes. These results could provide deeper insight into how OSA affects decision making either temporarily or permanently, and provide another rationale or motivation for treatment of OSA in adults.