Active clinical trials for "Sleep Apnea Syndromes"

Sleep disordered breathing (SDB) during pregnancy is a modifiable risk factor for poor maternal and fetal outcomes. The investigators propose a prospective observational study to assess the utility of continuous positive airway pressure (CPAP) administration (intervention) during pregnancy to reduce maternal and fetal morbidity. Secondarily, we will also perform a cohort study to assess the incidence of antenatal sleep-disordered breathing as measured by ambulatory sleep monitoring applied in the hospital setting.

The investigators evaluate the changes of echocardiographic and sleep apnea parameters after mitral valve surgery. The patients undergo echocardiographic and sleep apnea control before surgery. After a period of 3-5 months, they undergo a second echocardiographic and sleep apnea control and the results are evaluated.

The purpose of this study is to investigate the following topics: Determine the accuracy of ApneaLink Plus in separating Apneas into Obstructive Apneas, Mixed Apneas and Central Apneas. Determine the accuracy of ApneaLink Plus in scoring Hypopneas according to the 2008 guidelines of the AASM = American Academy of Sleep Medcine. Determine whether patients can start and stop the recorder and are able to attach the additional effort sensor by themselves using the patient instruction sheet

The mechanisms involved in development and maintenance of hypertension in obstructive sleep apnea are not clarified. We hypothesize that patients with obstructive sleep apnea have an abnormal level of some vasoactive hormones during apneic events during sleep.

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.

There is evidence for a high prevalence of Sleep Disorder Breathing (SDB) in patients with Chronic Thromboembolic Pulmonary Hypertension (CTEPH). Central Sleep Apnea, Cheyne-Stokes Breathing and Obstructive Sleep Apnea appear to occur in CTEPH. However, there is no information on the impact of CTEPH treatment modalities on concomitant SDB. Furthermore, the use of PAP therapy in CTEPH has not yet been investigated. CTEPH is a rare and serious disease and there may be a bidirectional association of SDB and CTEPH. This study plans to investigate the prevalence of SDB in CTEPH and compare it to datasets of large epidemiological studies on SDB. Furthermore, the impact of CTEPH treatment on SDB will be analyzed and CTEPH patients for possible PAP treatment will be defined.

Sleep Apnea Syndrome (SAS) is a serious health issue that should be managed in order to limit its adverse health consequences. SAS is known to induce cardiovascular diseases, diabetes and depression. The prevalence of SAS is still growing with social and economic repercussion. Today, polysomnography (PSG) is the gold standard reference method for SAS diagnosis. However, it is a constraining and expensive technology. In order to improve patients' life quality, many new technologies have been developed for the SAS diagnosis. The aim of this study is to evaluate the Sunrise®, a new medical integrated solution for SAS diagnosis, in comparison with PSG. This solution consists in a chin sensor recording mandibular movements and measuring the respiratory event index (ERI) through an artificial intelligence algorithm analysis.

Evaluation of residual sleep disordered breathing (SDB) under continuous positive airway pressure (CPAP) therapy with comparison of the automatic detected SDB event indices from CPAP machines with manual scored polysomnography (PSG).

The primary purpose of this study is to demonstrate the equivalence of the new Sleep Strip OTC(TM) compared to the reference method of an in-lab, attended full-night polysomnographic (PSG) study.

This study aims to evaluate the impact of nasal continuous positive airway pressure (nCPAP) treatment on liver enzymes in patients with sleep apnea syndrome and nonalcoholic steatohepatitis. Using a cross over design, the evolution of liver enzymes will be evaluated in 40 patients during a consecutive period of 6 weeks, with and without nCPAP treatment.