View clinical trials related to Obstructive Sleep Apnea.
Filter by:Continuous positive airway pressure (CPAP) is considered the gold standard therapy for obstructive sleep apnea (OSA). However, CPAP users sometimes experience pressure-related discomfort. It is thought that lower CPAP pressure may increase comfort and lead to greater treatment adherence. Mandibular advancement splint (MAS) therapy has been shown to be the preferred OSA treatment option among patients. However, MAS therapy is only partially effective in some OSA patients, especially in severe cases. It is thought that a combination of MAS and PAP therapy may benefit patients in which MAS alone is only partially effective. Using MAS and PAP at the same time is called "Dual Therapy". Dual Therapy may allow a lower CPAP pressure to be applied, which may increase patient comfort and therefore increase treatment adherence and overall effectiveness. This study will evaluate the effectiveness of 1 month of Dual Therapy in 30 OSA patients.
The purpose of the study is to compare the relative contribution of systemic inflammation vs. Obstructive Sleep Apnea (OSA) severity (as measured by Apnea Hypopnea Index) in predicting cardiovascular and metabolic aberrations associated with mild-to-moderate obstructive sleep apnea.
The primary objective in this study is to test whether propranolol lowers glucose and free fatty acid levels during sleep in obstructive sleep apnea (OSA), and preserves vascular function (EndoPAT) versus placebo. The secondary objective is to test whether propranolol influences sleep quality, architecture, and hemodynamics in OSA. OSA will be elicited by temporarily discontinuing CPAP therapy in patients with a history OSA accustomed to CPAP therapy (CPAP withdrawal).
Many researches have shown that patients with Obstructive Sleep Apnea (OSA) and often also the family members have a decreased quality of life, problems related to the sexual sphere, depressive disorders and anxiety problems. To date still remains controversial the relationship between OSA and quality of life, also the link between sleep apnea syndrome and depression is unclear. In adult patients with OSA the treatment of choice is the application of a continuous positive airway pressure (CPAP: Continuous Positive Airway Pressure) at the opening of the airways. With the CPAP treatment the sleep normalizes and daytime sleepiness fades or disappears. Many studies have shown that this treatment determines improvement of the medical and psychological status. However, the rate of non-adherence to treatment reported in the literature is about 46-83%, considering as adherence the use of CPAP for at least 4 hours per night. A recent study has shown that CPAP used as a single treatment in patients with OSA and depression, has reduced the depressive symptoms but in a significant percentage of patients (42%), the depressive symptoms remained unchanged or worsened. At the present time have not been published, to our knowledge, studies concerning the effectiveness of the combined treatment of CPAP and psychological support on the mood and on the quality of life OSA patients. Therefore the aim of this study is to evaluate the effects of the combined treatment with CPAP and psychological intervention with cognitive behavioural therapy on the mood and on the quality of life of OSA patients.
Obstructive sleep apnea (OSA) and type 2 diabetes confer increasing economic, social, and public health burdens in the United States. That these diseases appear to co-exist and together increase one's risk of cardiovascular disease renders investigation into their shared pathophysiology even more urgent. Investigators will assess prevalence of insulin resistance, a precursor to diabetes, among overweight patients with OSA. Among those at highest risk of diabetes, investigators will randomize participants to pioglitazone or placebo to see the efficacy of the intervention on improving OSA, insulin resistance, and/or insulin secretion. In a separate intervention, investigators will evaluate the cardiometabolic benefits of continuous positive airway pressure (CPAP) for 12 weeks in patients with OSA. Investigators will also study subjects from the community without known sleep apnea, and assess whether insulin-resistant individuals are at risk for sleep apnea using clinical screening questionnaires.
A new study have shown that high night time blood pressure (BP) and/or non-dipping (lack of fall in BP during night time) is a strong predictor for the risk of cardiovascular disease and mortality in patients with hypertension. Three factors seem to affect the night time BP: chronic kidney disease, obstructive sleep apnea (OSA) and the way ambulatory blood pressure is monitored. Hypothesis: Central 24-h blood pressure monitoring is a better way of monitoring blood pressure than conventional peripheral monitoring. In hypertension, chronic kidney disease and obstructive sleep apnea (OSA) the night time blood pressure is elevated, and is OSA the elevation is correlated to the severity of OSA. In OSA the kidneys handling of salt and water is disturbed. In OSA there is disturbances in hormonal balance.
The purpose of this research study is to develop a way of predicting with computers how surgery on the airway will affect night time breathing called Obstructive Sleep Apnea (OSA) in children with Down Syndrome. A research measurement for airway resistance will also be done during the clinical sleep MRI. The airway resistance measurement will take about 10 minutes and is done during sleep. The airway resistance measurement is called critical closing pressure (Pcrit).
Rationale: The effect of vertical dimension on sleep apnoea and respiratory variables in obstructive sleep apnoea patients. Objective: To what extend should a possible worsening of the OSA condition, caused by an increase of mouth opening be taken into consideration in daily dental practice, when an occlusal stabilization splint (OSS) is placed in the mouth. Study design: Cross over RCT-design Study population: OSA patients referred to ACTA from the Slotervaart Hospital, for treatment with a Mandibular Advancement Device (MAD), at least 18 years old. Intervention: Occlusal stabilization splint (OSS) for the upper jaw and a controlled condition in a cross-over design Main study parameters/endpoints: Apnoea- Hypopnoea Index (AHI) and the Epworth Sleepiness Scale (ESS). The aim of this study is to determine the effect of vertical dimension of OS on sleep and respiratory variables in OSA patients. The hypothesis is that insertion of an OSS and an increase of the vertical dimension will result in a significant increase in the AHI.
This study was planned to compare vessel sealing system tonsillectomy (VSST) to the traditional cold knife tonsillectomy (CKT) with special regard to intraoperative bleeding, operative time, postoperative pain and hemorrhage.