View clinical trials related to Obstructive Sleep Apnea Syndrome.
Filter by:Moderate to severe obstructive sleep apnea syndrome (OSAS) (HAI hypopnea apnea index ≥ 15) is a common pathology, which affects 6 to 17% of the general population. The Alaska study, which involved 480,000 apneic patients newly fitted with CPAP, showed that 76.9% of patients were still under treatment for one year, 62.9% after two years, and 52.3% after three years. All patients who recently diagnosed with OSAS in the Sleep Disorder Unit (unity de Pathologies du Sommeil et de la Vigilance, CHU d'AMIENS-PICARDIE, FRANCE) and who are requiring CPAP will be included. On the day of their hospitalization for the implementation of the CPAP therapy, patients will answer validated questionnaires to assess their level of motivation and adherence to the initiation of treatment but also to assess their knowledge and understanding of the disease and its treatment. These questionnaires will be repeated at the four-month and one-year follow-up consultations (+/- 21 days). The aim of the study is to identify the prognostic factors of adherence to CPAP, leading to a better understanding and management of patients with sleep apnea syndrome.
The obstructive sleep apnea syndrome (OSAS) involves recurrent sleep-related upper airways (UA) collapse. UA mechanical properties and neural control are altered, imposing a mechanical load on inspiration. UA collapse does not occur during wakefulness, hence arousal-dependent compensation. Experimental inspiratory loading in normal subjects elicits respiratory-related cortical activity during wakefulness. The objective of this study is to test whether awake OSAS patients would exhibit a similar cortical activity. Whether or not such cortical compensatory mechanisms have cognitive consequences would be also analyze.
Obstructive sleep apnea syndrome (OSA) is thought to lead to systemic vascular lesions that may be preceded by early microvascular lesions in the eyes and in particular in the retina. The improvement of ophthalmological imaging techniques by OCTangiography allows a precise non-invasive study of the retinal microvascular network. This new rapid and non-invasive retinal imaging tool could reveal micro-vascular lesions related to OSA. To the investigator's knowledge, this would be the first OCT-angiography description of a cohort of patients with OSA. If these results are confirmed, it would be interesting to study the correlation between these micro-vascular lesions and the cardiovascular risk of his patients.
This study will investigate the effectiveness of a simple and quick myofunctional reeducation protocol of the tongue in reducing the obstructive sleep apnea syndrome (OSAS) severity.
Continuous positive airway pressure (CPAP) is the gold standard to normalize breathing during sleep in patients with obstructive sleep apnea syndrom (OSA). Many patients will not tolerate or will not accept CPAP. Implanted nerve stimulation is a novel therapy for OSA patients that restores the upper airway potency using unilateral XII nerve electric stimulation. The principal objective of this study is short-term efficacy of a new treatment for OSA on blood pressure variability during sleep.
Obstructive sleep apnea (OSA) is a highly prevalent breathing disorder in sleep. We have aimed to evaluate the relationship between OSA and prolidase activity, the oxidative stress index (OSI), total antioxidative capacity (TAC), and total oxidative capacity (TOC) and the relationship between carotid intima media thickness (CIMT).
A randomized single blind clinical trial, with a larger sample size than previous studies , to evaluate the effectiveness of injection snoreplasty in the treatment of patients with snoring and obstructive sleep apnea/hypopnea syndrome (OSAHS) compared to oropharyngeal exercises, a low cost therapeutic modality.
The purpose of this study is to estimate the cost-utility of continuous positive airway pressure (CPAP) therapy in obstructive sleep apnea (OSA) patients in Sao Paulo city, Brazil, after 3 years of treatment and to estimate the cost-effectiveness of CPAP on the number of medical visits, hospitalizations, medical examinations, used medications, new case incidence and cost of traffic accidents and absence from work. It is also designed to estimate quality-adjusted extended years of life, and to assess cost-effects of the therapy (device, masks, supplies, maintenance/year for membership of professional consulting, electric power) on the cost-effectiveness
Obstructive Sleep Apnea Syndrome (OSAS) is associated with stroke as a risk factor but little is known about the consequences of OSAS on the outcome and the survival after stroke. The aim of the investigators study is first to evaluate the outcome and the survival of patients with stroke depending of OSAS (presence and severity of OSAS) and second to compare the outcome and survival of patients with severe OSAS depending on the treatment of the syndrome with nocturnal continuous positive airway pressure. The investigators hypothesis is that OSAS is associated with worst survival and outcome and needs to be treated at the subacute phase of stroke.
In this open prospective study 40 patients who received Mandibular Replacement Appliance (MRA) Therapy as treatment of Obstructive Sleep Apnea Hypopnea Syndrome (OSAHS) will be included. The patient's sleep will be registered during 2 periods of 2 days: one while the patient does not wear the MRA and, +/- 1 week later, one while the patient wears the MRA. Furthermore, 2 low dose CT scans (one with and one without the MRA device in the mouth) will be taken. These data must allow the investigators to validate the use of functional imaging (segmentation and Computational Fluid Dynamics) as a predictor of the outcome of the MRA therapy in OSAHS patients.