View clinical trials related to Sleep Apnea, Obstructive.
Filter by:The purpose of this study is to determine whether heated humidified high flow nasal cannula (HHHFNC) is effective as a treatment of obstructive sleep apnea syndrome (OSAS) compared to continues positive airway pressure (CPAP) treatments in children and to compare their adherence and compliance.
Obstructive sleep apnea (OSA) is a sleep disorder characterized by recurrent episodes of partial or complete collapse of the upper airway during sleep, leading to pauses of breathing and arousals. Although previously considered as a local abnormality of the respiratory track, it is nowadays recognized as a systemic disease and an important cause of morbidity and mortality, since it is strongly associated with obesity (especially abdominal obesity) and cardiometabolic diseases, including cardiovascular diseases and diabetes mellitus. Interestingly, recent hypotheses support that the metabolic syndrome pathology, including insulin resistance, inflammation and oxidative stress may be involved in OSA pathogenesis. The modification of lifestyle habits, e.g. in terms of diet and physical activity, is currently explored as a mean of managing the disease in combination with the first line treatment, i.e., the application of continuous positive airway pressure (CPAP) during sleep. The available data support that weight loss, achieved through lifestyle modification, effectively reduces the severity of OSA and improves the associated cardiometabolic disorders in overweight or obese patients. However, studies exploring the potential effect of diet's quality or other lifestyle habits (such as physical activity) on OSA severity, besides weight loss, are currently lacking. Given that a Mediterranean dietary pattern, as well as other lifestyle habits adopted by the populations in the Mediterranean region, have been proven beneficial both for the prevention and the resolution of the metabolic syndrome and its associated cardiometabolic diseases, the aim of the present randomized, controlled, single-blind study is to implement an intensive intervention based on the Mediterranean lifestyle (hypocaloric diet and 7 group lifestyle counselling sessions) and to evaluate its potential benefits, compared with standard care (hypocaloric diet and written advice for healthy lifestyle), in a sample of patients with OSA.
Acute consumption of dietary nitrate (as beetroot juice) has been shown to decrease systemic blood pressure in multiple populations as well as increase organ perfusion in areas of interest such as the pancreas and brain. Obstructive sleep apnoea syndrome (OSAS) is associated with high blood pressure, dysglycaemia and impaired vigilance. The effect of dietary nitrate in OSAS has not been reported.
Obstructive sleep apnea (OSA) is a common disorder with major cardiovascular sequelae. A recent study confirmed that OSA is associated with impaired exercise capacity and increasing OSA severity predicts worsening exercise capacity, which is a marker of potential increased cardiovascular risk. However, potential mechanisms of decreased exercise capacity caused by OSA remain unclear. Several pathophysiologic mechanisms of OSA have been proposed and investigators hypothesize that endothelial dysfunction leading to exercise-induced right ventricular dysfunction and associated pulmonary hypertension is the potential mechanism for impaired exercise capacity in OSA.
To study the effects of compression stockings on sleep apnea in hemodialysis patients with diagnosed obstructive sleep apnea. The rationale of this study consists in the fluid shift theory, which consists in the nocturnal rostral fluid shift from legs, which causes upper airways edema. The aim of this study is to evaluate if compression stockings could improve such nocturnal volume redistribution and, therefore, improve obstructive sleep apnea.
Obstructive sleep apnea (OSA) is a common disorder characterized by recurrent collapse of the upper airway during sleep. OSA patients have a small upper airway that is kept patent during wakefulness by a compensatory increase in upper airway (UA) dilator muscle (e.g. genioglossus) activity. At sleep onset this compensation is reduced or lost, resulting in upper airway narrowing or collapse. Previous studies of upper airway muscle training showed variable results on OSA, but so far there has not been any practical, long-term, systematic upper airway muscle training developed or studied as the treatment of OSA. In theory, strengthening the upper airway muscle with exercise training in theory helps maintain a patent airway during sleep. Therefore, investigators aim to test the hypothesis: 1) UA muscle training can improve sleep apnea in some patients with OSA, including those already receiving treatment with PAP or oral appliance therapy. 2) Muscle training is a viable therapy for a definable subset of OSA patients. Investigators hypothesize that patients with OSA who have mild or moderately compromised upper airway anatomy will benefit the most. 3)There will be a positive association between the changes in muscle function and improvement in OSA severity.
This is a prospective, multi-center, single arm, feasibility study to evaluate the safety and effectiveness of the ReVENT Sleep Apnea System for the treatment of Obstructive Sleep Apnea.
Obstructive sleep apnea (OSA) syndrome affects up to 5% of the general population. The prevalence is multiplied by 13 in coronary artery disease (CAD) patients. Many studies have shown that OSA syndrome was the main risk factor for cardiovascular morbidity and mortality (RR = 9.1 [95%, 2.6 to 31.2]). If the value of treatment with Continuous Positive Airway Pressure (CPAP) in symptomatic CAD patients (daytime sleepiness and/or 2 clinical symptoms with Apnea Hypopnea Index (AHI) ≥ 20) appears to be established, treatment with CPAP in asymptomatic CAD patients (with AHI> 30) may be too demanding. Alternative treatments are rare and results are highly variable. Therefore, it would be interesting to suggest other treatment modalities with moderate coronary and/or minimally symptomatic OSA syndrome.
The purpose of this study is to determine whether modafinil use in patients with obstructive sleep apnea will improve postoperative delayed emergence after general anesthesia.
Obstructive sleep apnoea (OSA) is a highly prevalent sleep-related breathing disorder associated with adverse cardiovascular outcome. Underlying mechanisms are subject of debate. A causal relationship between OSA and systemic hypertension as well as peripheral endothelial dysfunction was shown, and there is accumulating evidence from physiologic and observational studies that cerebral autoregulation is insufficient to protect the brain from the nocturnal consequences of OSA. However, there are no data from randomised controlled trials proving a causal relationship between OSA and impaired cerebral vascular reactivity (CVR). The aim of this randomised controlled trial is to study the effects of a short-term CPAP withdrawal, and thus returning OSA, on daytime CVR and brain oxygenation to establish whether there is a causal relationship between OSA and cerebral vascular damage.