View clinical trials related to Sleep Apnea, Obstructive.
Filter by:The investigators hypothesis is that upper airway collapsibility (Pcrit) in patients with obstructive sleep apnea (OSA) can be measured using equipment found in the clinical sleep laboratory and these Pcrit measurements obtained using clinical sleep laboratory equipment is comparable to those obtained using research equipment. OSA is a common disease characterized by repetitive collapse of the upper airway during sleep, leading to hypoxemia and arousals, and which has important neurocognitive and cardiovascular consequences. The single most important factor in the development of OSA is upper airway collapsibility: those with a more collapsible upper airway tend to have OSA while those with a stiffer upper airway do not. The gold standard treatment for OSA is continuous positive airway pressure (CPAP), which acts by stenting open the collapsible airway. Upper airway collapsibility can be measured during sleep by changing the CPAP level and assessing the change in inspiratory flow through the upper airway. Although technically feasible, these measurements are typically only undertaken in research laboratories with specialized equipment. The purpose of this study is to measure upper airway collapsibility using clinically available (i.e. equipment found in a clinical sleep laboratory) equipment only. If successful, upper airway collapsibility could be routinely measured in clinical practice, which could help inform treatment decisions and help individualize therapy for OSA.
The presence of Obstructive Sleep Apnea Syndrome (OSAS) has a high frequency in patients victims of a coronary artery disease (CAD) (myocardial infarction, revascularization). Unlike patients seen in a sleep Laboratory with an impact on daytime functioning, CAD apneic patients do not complain in their daytime functioning. The objective of this study is to explore whether the objective cognitive assessment measures may be a good marker of the efficacy of CPAP treatment given to non-sleepy apneic CAD patients. Coronary patients with an AHI between 15 and 40 / h will be treated (or not) after randomization with CPAP treatment. The expected results are: CPAP apneic coronary patients should have a positive impact on cognitive performance, particularly on attention span and working memory measured by improvement in the Paced Auditory Serial Addition Test score (PASAT score).
The aim of this randomized control study is to evaluate the effect of tonsillectomy with or without uvulopalatoplasty in treating adults with moderate to severe sleep apnea.
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.
This study will use a modified version of a positive airway pressure device to supply air to the participant, while undergoing supervised polysomnography. Positive airway pressures are typically applied to many patients with hypoventilation, in this study these pressures will be titrated by a qualified sleep technician. During the night these pressures will be altered to optimise comfort.
Sleep apnea is a common disease in the general population and more particularly in elderly subjects in whom prevalence can reach 30 % after 70 years old. In adults (<55 years old) cardiovascular consequences are well known and make sleep apnea treatment necessary. However elderly (>70 years old) apneic subjects are less symptomatic in terms of sleepiness, they usually present a lower index of respiratory events and cardiovascular consequences in this population are still discussed, driving some authors to consider sleep apnea in the elderly as a specific disease and making the need for a treatment questionable. In this study the investigators will focus on the comparison between adult and elderly apneic subjects in terms of cognitive and cardiovascular consequences. Adult apneic patients suffer from a decrease of cognitive performance as well as grey matter local atrophy, particularly in the hippocampus and in the frontal lobes. According to fewer studies, white matter can also be affected by a demyelinisation process. These structural modifications are sometimes associated with disorders of executive and memory functions. In the elderly, no clear association can be drawn between cognitive decline and sleep apnea. Moreover, to our knowledge, the cerebral state of elderly symptomatic apneic subjects has mostly not be investigated.
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.
This is a pilot study to investigate the efficacy and safety of the Negative Pressure Sleep Therapy System for the treatment of obstructive sleep apnea.
A prospective open-label, single treatment study to assess the safety and the performance of the Nyxoah SAT system for the treatment of Obstructive Sleep Apnea
Adenotonsillectomy is one of the most common surgical procedures performed in the pediatric population in the United States. It is generally a well-tolerated procedure with post-operative bleeding risk ranging from 3-5% in children. Post-operative pain following adenotonsillectomy has significant morbidity and may result in prolonged hospital stay or re-admission to the hospital. Post-operative analgesia is most commonly managed with narcotic-containing pain medication. In recent years however, there is evidence that some patients may manifest increased sensitivity to narcotics, resulting in life-threatening respiratory compromise. Though there is a theoretical risk that nonsteroidal anti-inflammatory drugs (NSAIDs) increase bleeding time by disrupting platelet aggregation, evidence of detrimental effects (i.e. increased risk of postoperative bleeding) remains inconclusive for these generally well-tolerated medications. The goal of this study is to determine the incidence of post-operative bleeding and to determine the efficacy of NSAIDs in the management of post-operative pain following pediatric adenotonsillectomy, versus more commonly used narcotic pain medication. The study design will be an initial retrospective study to collect pilot data on the incidence of postoperative hemorrhage and indicators of adequate/inadequate pain control in children age 4 to 17 undergoing adenotonsillectomy. This will be followed by a prospective, randomized, single-blind controlled study in which orally-administered ibuprofen (test intervention) is compared to acetaminophen-hydrocodone (control intervention) in the postoperative period following adenotonsillectomy.