View clinical trials related to Apnea.
Filter by:The purpose of this research is to assess how well people with mild obstructive sleep apnea (OSA) adhere to the eXciteOSA device and specifically examine whether adherence of the device is different with low versus high electrical stimulation. In addition, this research study will assess how well the device affects mild sleep apnea and if it improves sleepiness and quality of life.
Aims of this research are to detect if an improvement in sleep pattern in patients suffering from obstructive sleep apnea (OSA), produces a reduction in pain and dysfunction in the orofacial area by examining variation in temporo-mandibular disorder (TMD) signs and symptoms and if the prevalence of TMDs in OSA patients controlling this disease decreases to levels comparable to healthy subjects. 41 OSA patients will undergo a complete TMD examination prior to start any OSA treatment and after at least 18 months of therapy. Variations in TMD signs and symptoms will be recorded.
The aim of this study is to assess the efficacy of transcutaneous electrical stimulation of the upper airway muscles in patients with obstructive sleep apnea.
This study has been developed in order to demonstrate the validity of the DreamKit respiratory effort signal.
Continuous positive airway pressure (CPAP) is the first-line treatment for obstructive sleep apnea syndrome (OSA). It consists of a pressure generator connected to a mask applied to the patient's face. CPAP treatment is restrictive, and nearly a quarter of patients abandon it over the long term. Various factors can influence adherence to CPAP therapy, including adverse events associated with the mask. However, it is clear that compliance with CPAP treatment, even if it has tended to improve over the last 30 years, is still sub-optimal. The "Air Liquide Medical Systems" company has developed a mask that aims to improve comfort and ease of use for the patient. This leaky nasal mask has a "silent" intentional leak port, which significantly reduces the noise caused by the escape of air. The noise associated with intentional leakage is one of the discomforts reported by patients and their spouses. In addition, this mask is equipped with a new generation headgear with adjustment indicators to assist the patient in fitting the mask. Optimal headgear fit is a prerequisite for comfort during treatment, as it reduces unintentional leakage. The main objective is to evaluate, through a questionnaire, the comfort and general appreciation of a nasal mask equipped with a silent leak system and a headgear with adjustment aids, of patients with OSA treated with CPAP. Secondary objectives are : 1. To evaluate the appearance of CPAP side effects related to the mask, 2. To collect the patient's appreciation of the mask headgear, 3. To evaluate the discomfort caused by the nasal obstruction reported by the patient, 4. To evaluate the daytime sleepiness of the patient, 5. To study the parameters of the CPAP treatment.
Overnight rostral fluid shift is one of the contributing factors for worsening obstructive sleep apnoea (OSA). Fluid shift has been recognized to play a role in the pathophysiology of sleep apnoea. Previous studies shown that fluid from the leg redistributes to the neck at night increases the neck circumference, hence indicating fluid accumulation in the neck. OSA patients are more susceptible to developing upper airway narrowing in response to fluid shift from the leg to the head and neck region. Previous studies were mainly done on Caucasian patients. The pathophysiology of OSA in Caucasian patients and Asian patients are different but both suffer a similar degree of OSA. The investigators would like to investigate if reducing leg swelling by a simple non-invasive intervention of wearing compression stocking during the day can attenuate sleep apnoea, and whether compression stocking is generally acceptable and well-tolerated among the general OSA population in Asia.
In general, central sleep apnea is not as common as obstructive sleep apnea but it is common in patients with heart failure. It has been repeatedly shown that central sleep apnea worsens the prognosis of heart failure. The current concept in the development of CSA is hypocapnia which causes temporary cessation of respiratory neural output. Different methods for supplement of CO2 have been used to eliminate CSA. However, variation of CO2 concentration during overnight treatment and tight-fitting mask made the treatment uncomfortable. It is important to develop a device with a comfortable mask to supply constant low dose CO2 without breathing difficulty. We recently developed a device for treatment of CSA.
The objective of the study is to define an optimal threshold of the SEMSA-15 scale for obstructive sleep apnea (OSA) perception in patients with OSA to predict 3-month and 1-year continuous positive airway pressure adherence.
The anatomical changes of the upper airway in a standing vs pseudo-supine position using Carestream Orthodontic Imaging (Volumetric) and Carestream Orthodontic Imaging module (AP measurements) of the patient's airway respectively, have been taken and the obtained results compared. In order to simulate the supine position, patients are placed in a supine position (180 degrees) in a dental exam chair, and asked to relax their lower jaw, allowing it to drop back, simulating their jaw falling back while sleeping. That bite is then captured with a Correct Plus™ Impression Material Superfast. Once the bite material hardens, it locks the bite in place. The patient then stands upright, and CBCT is taken standing while the jaw placement is still pseudo sleep-supine, supported by the bite material.
Obstructive sleep apnea (OSA) is a highly prevalent and morbid sleep disorder. Among the factors associated with its pathophysiology, the role of intermittent hypoxia stands out, contributing to the development of oxidative stress and inflammation. It is known that cumulative levels of these factors negatively influence the final portion of the DNA, known as telomere. In this sense, the investigators hypothesize that OSA is capable of accelerating aging process through telomere shortening mediated by inflammatory and oxidative markers. Thus, the aim of this study is to investigate the effect of OSA and its treatment with CPAP on the variation of telomere length and their associated mechanisms. For this, a randomized, double-blind, sham-controlled clinical study with 6 months duration will be conducted. We will recruit male participants with OSA diagnosis (apnea-hypopnea indexe15/hour), aged between 35-65 years and body mass index<35 kg/m2, which will be randomized to use CPAP or sham-CPAP for 6 months. Participants will visit the laboratory 7 times (baseline and after 1, 2, 3, 4, 5 and 6 months) and will be submitted to clinical and otorhinolaryngological evaluation, sleep questionnaires, polysomnography and blood collection for DNA and extraction and measurement of telomere length, as well as the expression of telomerase and oxidative and inflammatory markers (ADMA, homocysteine, cysteine, TBARS, 8-oxodG, TNF-a, IL-6 and IL-10). This project aims to contribute to the elucidation of the effect of OSA on telomere length maintenance, as well as the adjacent mechanisms to this relationship.