Active clinical trials for "Sleep Apnea, Obstructive"

The investigators will conduct this study to validate Belun Ring for sleep assessment. The investigators will compare Belun Ring data collection and overnight in-lab polysomnography (PSG) measures of SDB and sleep architecture in adults with OSA symptoms. The investigators propose to recruit a total of 40 participants with symptoms of obstructive sleep apnea. The investigators will i) validate the overall accuracy, sensitivity and specificity of Belun Ring to assess SDB and sleep architecture, using PSG analysis as a gold standard.

It is a prospective, single center, single-arm clinical study to enroll a maximum of 25 subjects.

We aimed to investigate the relationship between obstructive sleep apnea (OSA) risk and respiratory inflammation evaluated by the exhaled breath condensate （EBC）interleukin-6 IL-6 and plasma SP-D, based on the Berlin questionnaire (BQ) screening values in an adult, urban community in Beijing, China. Volunteers aged >40 years were recruited from the Shichahai community of central Beijing. Their general information and disease history were recorded. OSA risk was assessed using the BQ. IL-6 in EBC and plasma SP-D were detected by enzyme-linked immunoassay (ELISA)through specimens collected on fasting. The differences in IL-6 and SP-D contents between high-risk and low-risk groups for OSA were compared, and the factors affecting their contents were analyzed.

This is a validation study recruiting subjects with and without obstructive sleep apnea. All subjects will undergo a nocturnal standard polysomnography and UMindSleep assessment. Sleep parameters, such as sleep stages and apnea UMindSleep software. Correlation in each parameter between PSG and events in polysomnography (PSG) will be scored according to the AASM criteria while the sleep parameters will be automatically scored by the UMindSleep will be analyzed to determine the magnitude of agreement between UMindSleep and PSG.

Nocturnal reduction in blood oxygen is expected independently associated with the development of worsened glycemic control in individuals with type 2 diabetes mellitus. The aim of the present study is to assess the correlation between nocturnal oxygen desaturation assessed by overnight pulse oximetry and glycemic control in diabetic patients with obstructive sleep apnea.

A project of the feasibility of using NightOwl to detect the prevalence of obstructive sleep apnea (OSA) in patients with atrial fibrillation (AF). The long-term aim is to use the device to screen for OSA in a randomized clinical trial in AF patients undergoing ablation and/or a randomized trial of AF patients undergoing cardioversion.

Assessment of the lung hyperinflation by bodypletysmography in patients with obstructive sleep apnoea treated with continuous positive airway pressure therapy.

The OAMMM study is a mono-centrer , non interventional, prospective study, carried out in CH Valence Oral Appliance is indicated for first line moderate sleep Apnea Syndrome or severe sleep Apnea Syndrome after failure of positive airway pressure (CPAP). Clinical impact of each mm advancement of Oral Appliance is imperfectly assessed. The study aim to assess clinical and paraclinical efficacy of an oral Appliance on each mm of advancement.

Chronic rhinosinusitis with nasal polyps (CRSwNP) is a condition resulting in varying degrees of nasal congestion, nasal secretion, facial pain and reduced or absent sense of smell. In Denmark an estimated 200.000 patients suffer from this condition. It affects the quality of life in a degree equivalent to chronic cardiac and respiratory conditions. CRSwNP is known to be associated with inflammation in the nose and sinuses. In some patients the inflammation is also present in the lower airway resulting in shortness of breath, chest constriction, wheezing and coughing. It follows that asthma is often seen in patients with CRSwNP. Even though the association of asthma and CRSwNP is well known it is easy to overlook the asthma further reducing the quality of life. Previous studies have found that undiagnosed asthma is present in about a quarter of patients with CRSwNP. While many of the CRSwNP patients are treated in private ENT practice alone the lack of simple diagnostic tests giving a reliable measurement of airway inflammation is a challenge in diagnosing concurrent asthma. A recent study showed measuring of fractional exhaled nitrogen oxide (FeNO) in exhaled air to be a promising diagnostic test. The concentration of this gas in the exhaled air from the nose and mouth is related to the degree of airway inflammation and can therefore be used as a surrogate measurement in a safe and easy way. With this study the investigators want to measure the concentration of FeNO in patients with CRSwNP in private ENT practices. The aim is to explore if it can be used as a screening test for asthma. The study will also screen the patients for obstructive sleep apnea (OSA). Patients will be recruited from three private ENT practices in the Capital Region of Denmark. Patients with CRSwNP will be recruited from their appointments in the ENT clinics. They will be offered inclusion in the study, and if they give an informed consent, an exhaled NO test and a thorough ENT examination including a fiberoptic examination of the upper airway will be performed. They will also be asked to fill out questionnaires on the severity of symptoms from the nose and lungs, sleep quality and their health in general. Patients will also undergo a sleep study (Cardio-Respiratory Monitoring = CRM) and tests of lung function. With signs of respiratory or sinus disease they will be referred for further investigations and treatment.

Sleep disorders are important health issues that can reduced ones quality of life by affecting their performance and productivity in a negative way. People who work in shifts or doing 24 hours call usually have irregular sleep patterns and often complaint of fatigue and daytime sleepiness. This will jeopardized our attention, concentration ability and memory which may lead to serious job accidents. This study is to screen for obstructive sleep apnea among doctors working in a tertiary hospital and to determine the predictors of OSAS and tiredness among doctors who frequently work night shifts or 24 hour call. What would this involve? Participant will be required fill up demographic data and answer the STOP-Bang and Epworth sleepiness scale questionnaires. After that participant will need to wear a wrist watch pulse oximeter just before going to sleep at night until the next morning (minimum of 6 hours of sleep required). The wrist watch will then be returned to researcher the following day for data analysis purpose. The benefits We hope to screen and identify those who are at risk of having obstructive sleep apnea and start early treatment among doctor who often have irregular sleep patterns and insufficient sleep due to the nature and timing of their work.