Active clinical trials for "Sleep Apnea, Obstructive"

This will be a prospective validation study of a sample of consecutive pediatric Down syndrome patients who are seen through the weekly Down syndrome clinic at OHSU/Doernbecher's. Questionnaires will be administered to approximately 5 new patients per month. Since this population has a higher prevalence of OSA than the general pediatric population, and OSA is a potentially modifiable determinant of quality of life, validated instruments are critical in assessing disease burden and response to treatment.

Ischemia and reperfusion (I/R) injury during abdominal aortic aneurysm (AAA) repair is inevitable and may lead to postoperative multi-organ failure. Remote ischemic preconditioning (short periods of ischemia in anticipation of longer period of ischemia) may act protectively against ischemia. Studies of ischemic preconditioning in patients with AAA are conflicting. Obstructive sleep apnea (OSA) is a sleep disordered breathing syndrome which may have a protective effect against ischemia. The investigators hypothesize that I/R injury will be less pronounced in patients who have OSA and that the extent of I/R injury will inversely correlate with OSA severity. Accordingly, the aim of this study is to compare postoperative complications and markers of I/R in patients undergoing elective AAA repair who do and do not have OSA.

To date, there has been no head to head comparison of Upper Airway Stimulation (UAS) and Continuous Positive Airway Pressure (CPAP) utilizing a full night polysomnographic evaluation. With this study we aim to evaluate a pilot cohort of patients with OSA treated with CPAP or UAS using the WatchPAT polysomnography system.

This registry is a prospective, multi-center, single-arm study of pediatric subjects (ages 18-21 years) who are undergoing implant of the Inspire Upper Airway Stimulation (UAS) System for the treatment of moderate or severe obstructive sleep apnea (OSA). Implanted subjects will be followed for 5 years post-implant.

Validation of an integrated digital solution (SUNrise®) of mandibular movement automatic analysis by artificial intelligence versus polysomnography for obstructive sleep apnea diagnosis: a prospective, randomized, parallel-arm, open-label, multicenter, national, controlled study.

Millions of Americans suffer from high blood pressure, diabetes, strokes and motor vehicle accidents due to ineffective treatment of obstructive sleep apnea (OSA). Our preliminary data suggest that physiological causes of OSA such as easy arousability (low arousal threshold) or unstable breathing control (high loop gain) may influence effectiveness of OSA's most common treatment, continuous positive airway pressure (CPAP). The NICE-PAP study will examine how the physiologic traits that cause OSA in each individual impact CPAP effectiveness and can lead to personalized OSA treatments that improve patient lives.

This prospective cohort study aims to compare the proportion of cardiac or cerebrovascular events after a first stroke, a first transient ischemic attack (TIA) or recurrent TIA, between sleep-disordered breathing (SDB) and non-SDB (control) patients, one year after SDB diagnosis, performed 3 months after stroke onset. The primary outcome is a composite endpoint composed of cardiac or cerebrovascular events regrouping: death from any cardiac or cerebrovascular cause, non-fatal stroke, and non-fatal acute coronary disease. 1620 patients, in the acute phase of a first stroke, TIA or recurrent TIA will be included in the cohort. Clinical, neuroimaging, sensorimotor, cognitive and biological parameters will be collected at inclusion. Three months after stroke or TIA onset, polysomnography will be performed for SDB diagnosis. Patients will be considered as having SDB for an Apnea-Hypopnea Index (AHI) > 15 events/hour, or to the control group otherwise. The same clinical, imaging, cognitive and biological assessments than during the first visit will be performed; incident (new) cardiovascular events will be collected. Three months later, and at 1, 2, 3, 4 and 5 years after SDB diagnosis, the same clinical, cognitive, sensorimotor, and sleep-related evaluations will be performed. In addition to the aforementioned parameters, incident cardiovascular outcomes will be collected, at the same time points. The primary study outcome will be retrieved one year after stroke onset.

Obstructive sleep apnea (OSA) is a sleep related breathing disorder caused by repetitive collapses of the upper airways resulting in impaired breathing, oxygen desaturation and sleep disturbances. OSA has a massive impact on global health contributing directly to cardiovascular diseases, insulin resistance, metabolic syndrome and daytime fatigue and is repeatedly associated with an increase in motor vehicle accidents. The mainstay of treatment is still the use of positive airway pressure or surgery of the upper airways, but the success rate is persistently low. Surgery may be of help, but there is a lack of patient-specific options in both diagnostics and treatment. Mathematical and computational modeling is expected to provide significant insight into the airway function and onset of OSA. This study is part of a project that will rely on biomedical engineering to obtain the required insight to produce software tools for computer-aided diagnostics and treatment of OSA.

The investigators seek to advance the understanding of obstructive sleep apnea as it relates to different ethnic origins as well as sex differences. The investigators will compare Somali patients with known obstructive sleep apnea (OSA) to individuals without OSA, and to individuals of other ethnic/racial origins to determine the risk factors (genetic and/or physiologic) associated with developing cardiovascular diseases. This will help the investigators to understand the unique sleep pathology of individuals of African descent.

Epidemiological studies have shown that OSA is closely related to the occurrence and development of cardiovascular diseases, especially hypertension. At present, there are 66 million patients with moderate to severe OSA in China, and the current diagnosis and treatment of OSA is mainly completed in the sleep center of the hospital, which is time-consuming and laborious, resulting in the delayed diagnosis and treatment of a large number of patients, making about 80% of potential OSA patients have not been diagnosed and treated in time. With the development of the Internet technologies, telemedicine has been increasingly applied to the diagnosis, treatment and management of chronic diseases with its advantages of convenience, interactivity, efficiency, sharing, coherence and breaking through the limitations of time and space. Our center has initially built a remote diagnosis and treatment management model for OSA. Compared with the traditional medical model, the medical and health economic analysis shows that the OSA diagnosis and treatment model based on telemedicine is more cost-effective, but its clinical efficacy needs to be further verified. Hypertension is a common complication in OSA patients, and continuous positive airway pressure (PAP) has a significant hypertensive effect in the treatment of OSA. However, whether clinical management based on remote diagnosis and treatment mode can achieve the same therapeutic effect as traditional face-to-face diagnosis and treatment mode in improving ambulate blood pressure in OSA patients needs to be further clarified. This study will compare the improvement of ambulatory blood pressure management in patients with hypertension under the new telemedicine mode and the traditional medical mode through a single-center randomized controlled trial, so as to optimize the diagnosis and treatment process of OSA patients with hypertension, establish a more convenient and efficient remote diagnosis and treatment mode with reliable clinical outcome, and provide a theoretical basis for subsequent multi-center research and promotion