Active clinical trials for "Sleep Apnea Syndromes"

Trazodone may help obstructive sleep apnea patients to stick to their therapy, but optimal dosing is unknown. This study looks at what dose of trazodone has the best balance of potential benefits to side-effects in people with obstructive sleep apnea who are either starting on positive airway pressure therapy or not adherent to it. Participants will be randomly assigned to one of three groups: trazodone 50 mg, trazodone 100 mg, or placebo for 14 days. The investigators will monitor side-effects and adherence to positive airway pressure therapy.

Given the critical role of sleep in enhancing neural recovery, motor learning, neuroprotection, and neuroplasticity, interventions to enhance sleep that target sleep could improve recovery and rehabilitation outcomes for stroke patients. In this proposal, a multidisciplinary group of researchers with expertise in rehabilitation medicine, sleep medicine, nursing, physical therapy, wearable technologies, and implementation science will adapt, implement and evaluate a state-of-the-art intervention to promote sleep for stroke patients undergoing acute rehabilitation. SIESTA-Rehab, adapted from a previous unit-based intervention, bundles two sleep-promoting interventions to address the unique sleep challenges stroke patients face during acute rehabilitation: (1) nursing education and empowerment to reduce unnecessary disruptions; (2) a systematic protocol to screen, diagnose, and treat sleep-disordered breathing if present during acute stroke rehabilitation.

Sleep disordered breathing is a common and serious health problem. According to epidemiological data, it may affect about 20% of adult population. The majority is not aware of the disease. The most common sleep disorder is obstructive sleep apnea (OSA). The essence of OSA are the episodes of airway obstruction repeated many times during sleep, as a result of which the level of partial oxygen in the blood decreases. Apnea episodes end up waking from sleep, causing sleep fragmentation, deep sleep and REM deficiency. Frequent complications of OSA are hypertension, stroke, cardiac arrhythmia, coronary artery disease and pulmonary hypertension. Comorbid Insomnia and Sleep Apnea (COMISA) is a highly prevalent and debilitating disorder that causes additional disturbances in sleep, daytime functioning, and quality of life for patients, and is a significant diagnostic and therapeutic problem for clinicians. Although the presence of COMISA was first noticed by Christian Guilleminault and his colleagues in 1973, it received very little research attention for almost three decades. There is still lack ofclinical trials concerning this topic. An additional problem in apnea patients is the increased incidence of bruxism. Bruxism is associated with increased masticatory muscle activity during sleep, which may be phased or tonic. It is estimated that the incidence of bruxism in the adult population is 13%. The most common symptoms of bruxism include: pathological wear and tooth sensitivity, damage to the periodontium and oral mucosa, muscle pain in the stomatognathic system, headaches and damage to prosthetic restorations. However, the symptoms of bruxism can go unnoticed for a long time, leaving patients often unaware of the problem. The aim of this project is: to determine the prevalence of sleep bruxism in COMISA, OSA and insomnia, to examine of arousals (type, frequency) in COMISA, OSA and insomnia, to investigate the relationship between arousals and blood pressure values and variability, arrhythmias, sinus rhythm variability, vascular endothelial dysfunction, cardiovascular risk in COMISA, OSA and insomnia.

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).

To study whether Somfit is substantially equivalent to the existing approved devices for full polysomnography and home sleep apnea testing

the study aims to evaluate the accuracy correlation between subjective perception of the air flow through airways from patients and survey and/or polysomnography they spent, using a brief clinical protocol they answered with a manual therapist

The role of control of peri-pharyngeal muscle tone in the pathogenesis of obstructive sleep apnea (OSA) is obvious: pharyngeal obstruction occurs only during sleep; and pharyngeal collapse occurs in almost all healthy subjects during anesthesia. Better understanding of these control mechanisms may help identifying the central components of the pathogenesis of OSA.

To evaluate the impact of early ventilation in stroke outcomes in patients with sleep apnea and first ever stroke, 1 month after stroke.

Obesity is a common risk factor for the development of obstructive sleep apnea. However, not all subjects with obesity develop obstructive sleep apnea. This study will attempt to determine the mechanistic drivers between obesity and obstructive sleep apnea.

Uncontrolled hypertension is associated with an increased risk of heart disease, stroke, and mortality. Obstructive sleep apnea (OSA) is common in hypertension and treatment using continuous positive airway pressure (CPAP) has been shown to effectively lower blood pressure. Despite its clinical significance, OSA remains underdiagnosed in patients with hypertension, because the current standard of care to diagnose OSA is in-laboratory polysomnography, which is inconvenient and often inaccessible for high-risk populations. An alternative to in-laboratory polysomnography is home sleep apnea testing, which has been validated against in-laboratory polysomnography and may be more convenient, accessible, and potentially cost-effective. The objective of this study is to compare home sleep apnea testing to in-laboratory polysomnography in a randomized controlled trial. The investigators will assess whether the use of home sleep apnea testing, compared to use of in-laboratory polysomnography, leads to higher rates of OSA diagnosis and treatment using CPAP, a reduction in blood pressure, improved sleep-related outcomes, and greater patient satisfaction among patients with hypertension at 6 months. The investigators will also assess whether home testing is cost-effective.