View clinical trials related to Apnea.
Filter by:Obstructive sleep apnea (OSA) is a highly prevalent condition in veterans with some estimates as high as 47%. Poor adherence to the primary treatment of OSA -- continuous positive airway pressure (CPAP) therapy - is associated with increased risk for heart attacks, strokes and even death. The investigators plan to improve CPAP adherence in veterans through their interactions with peers who have successfully adopted CPAP therapy. Such "peer-buddies" may promote the well-being of veterans while remaining highly cost-effective when compared to healthcare providers. Our strategy is grounded on the rationale that veterans as a group are ecoculturally more homogenous than expected for the given level of differences in age, gender, ethnicity, or socioeconomic strata. Our long-term objectives are to initiate a larger, multi-site, research study for enhancing CPAP adherence in veterans with OSA. The ultimate goal of this research is to develop a cheap, effective and exportable system of care to promote CPAP adherence in patients with OSA.
Objective: Obstructive Sleep Apnea-Hypopnea Syndrome (OSAHS) is a common sleep disorder requiring the time and money consuming full polysomnography to be diagnosed. Alternative methods for initial evaluation are sought. The investigators aim was the prediction of Apnea-Hypopnea Index (AHI) in patients suspected to suffer from OSAHS using two models based on nonlinear analysis of three biosignals during sleep. Methods: One hundred patients referred to a Sleep Unit underwent full polysomnography. Three nonlinear indices (Largest Lyapunov Exponent, Detrended Fluctuation Analysis and Approximate Entropy) were extracted from three biosignals (airflow from a nasal cannula, thoracic movement and Oxygen saturation) providing input to a data mining application for the creation of predictive models for AHI.
Although obstructive sleep apnea (OSA) is associated with impaired glucose tolerance and diabetes, it remains unclear whether OSA treatment with continuous positive airway pressure (CPAP) has metabolic benefits. The objective of this study is to determine the effect of 8-hour nightly CPAP treatment on glucose metabolism in individuals with prediabetes and OSA.
This is a prospective study of the Attune Sleep Apnea System for the treatment of obstructive sleep apnea. The objective of the study is to demonstrate safety and effectiveness of the Attune Sleep Apnea System to support FDA marketing clearance of the device.
The high prevalence (9% in men and 4% in women) of sleep apnea / hypopnea syndrome (SAHS) in adults is now well documented as well as its cardiovascular repercussions. Previous studies showed a conclusive link between SAHS and severe cardiovascular diseases such as hypertension, myocardial infarction, heart failure and stroke.Then, SAHS is a public health issue in adults. In this context, early detection of such a disease is crucial if the management is tailored to the patient, the practitioner's choice of therapy moving towards continuous positive airway pressure (CPAP) or mandibular advancement device. The detection is based on full nocturnal polysomnography or polygraphic recordings. Polysomnography remains the gold standard but it is a time consuming and costly examination. Polygraphic recording is a test that allows simplified the diagnosis of severe patients, but may not be sufficient for mild form of SAHS. Thus, the SAHS is a pathology under-diagnosed and under-treated. The validation of a technique for identifying patients most at risk to either limit the number of polysomnographic examination is requested.
The purpose of this study is to determine the chronic safety and efficacy of phrenic nerve stimulation on central sleep apnea (CSA). Clinically, CSA events translate into sleep fragmentation, excessive daytime sleepiness, reduced exercise capacity, and possibly ventricular arrhythmias. The study is chronic in nature, such that subjects will undergo the implantation of an implantable pulse generator and stimulation lead. A sensing lead may also be placed during the initial implant procedure. Subjects will be followed for up to six-months on therapy to assess respiratory and heart failure outcomes. Following the six-month therapy visit, subjects will enter into a long-term follow-up phase until the completion of the study. It is anticipated that data obtained in this study will show that the proposed intervention can modify respiration with a low incidence of adverse effects. The results of this trial are intended to be used to develop a subsequent protocol for pivotal study.
We are looking to test a novel device in the treatment of Obstructive Sleep Apnea (OSA). Rather than using positive pressure to open the airways, we are testing a device that delivers an auditory tone to affect neuromodulation. We will test its efficacy in treating OSA while minimizing sleep disturbance. As this device is much less cumbersome to wear, we hope this therapy device will also improve compliance with treatment.
To determine whether, in obese children with moderate-severe Obstructive Sleep Apnea who are prescribed Positive Airway Pressure(PAP) therapy, increased hours of PAP usage per night over a one-year period is associated with a greater improvement in HOMA-IR
This project is investigating whether both moderate-intensity physical activity and dietary weight loss will independently reduce sleep apnea symptoms and improve quality of life.
The primary aim is to study whether a tailored behavioural medicine intervention addressing physical activity and eating habits have additional effects to continuous positive airways pressure (CPAP) in patients with moderate or severe obstructive sleep apnea syndrome (OSAS) combined with obesity. Direct everyday life consequences (see below) of OSAS are studied, as well as cognitive functions and ventilatory parameters. Long-term benefits will be examined in terms of quality of life and everyday life activity. Another aim is to study mechanisms of treatment effects, if any. The specific goals are: 1. To study changes in OSAS ventilatory parameters following a tailored behavioural medicine intervention addressing physical activity and eating habits (including CPAP) compared to regular CPAP-treatment 2. To study immediate and long-term effects on daytime sleepiness, attention and concentration, everyday life activity, quality of life following a tailored behavioural medicine intervention addressing physical activity and eating habits (including CPAP) compared to regular CPAP-treatment 3. To study associations of changes in metabolic parameters and systemic inflammation and physical activity level and adherence to CPAP-regimen respectively. 4. To identify mediators, moderators, and predictors of treatment effects, if any.