View clinical trials related to Sleep Apnea, Obstructive.
Filter by:Participants will have an overnight polysomnography (recording apnea-hypopnea index), MRI (brain structure), and a sleep symptoms questionnaire for baseline data. Participants will then undergo 6 weeks of whole body vibration (using the whole body vibration device), 3 times a week for 30 minutes sessions. After 6 weeks, participants will have complete another polysomnography, MRI and sleep questionnaire.
The POACH study is part of the Cardiosleep research program. It is a prospective, observational, multicentre study conducted in Singapore. The recruitment target is 1365 patients. Eligible patients with AF and high cardiovascular risk will be recruited for a home-based sleep study using a FDA-approved portable device. The patients will be divided into 2 groups based on the presence or absence of OSA using apnoea-hypopnoea index ≥ 15 events/hour. The AF will be treated as per local standard practice. Participation in the POACH study will not affect the management of AF. Follow-up will be conducted every 6 months until the median follow-up duration has reached 2 years. The primary endpoint is a four-component composite of all-cause mortality, myocardial infarction, stroke and heart failure hospitalisation. Antecubital venous blood samples will be taken from the patients in the morning after the sleep study for targeted mass spectrometry which will measure 83 circulating metabolites. Sparse Principal Component Analysis will be used for data reduction. Identification of distinct associations between metabolic perturbations and OSA will be performed.
Background: Previous studies have reported that intermittent hypoxia in obstructive sleep apnea (OSA) is associated with tumor progression, metastasis and treatment outcomes. However, studies explaining the relationships between specific types of cancer and OSA are needed. In this study, it is aimed to show the effect of excessive daytime sleepiness as determined by Epworth sleepiness scale(ESS) and the effect of OSA risk determined by STOP BANG questionnaire on survival and treatment outcomes in lung cancer. Method: The patients who admit the palliative care outpatient clinic of our hospital with the diagnosis of lung cancer (stage 3 and stage 4 non-small cell lung cancer or limited / extensive stage small cell lung cancer) between July 2019-2020 will be assessed for excessive daytime sleepiness(EDS) and risk of obstructive sleep apnea (OSA) by Epworth sleepiness scale and the STOP-BANG questionnaire. The patients will be grouped according to the risk of OSA and EDS.Total / progression-free survival, treatment outcomes and side effects of the treatment will be evaluated comparatively.
Obstructive Sleep Apnea (OSA) is a well-known disorder of upper airways collapse during sleep time leading to oxygen desaturation and sleep fragmentation. Despite being increasingly recognized as cardiovascular risk, the effect of OSA on clinical outcomes after Acute Coronary Syndrome (ACS) is not fully defined. Also, OSA syndrome is highly prevalent in ACS and may be related to the deterioration of cardiac function resulting in worsening of the severity of sleep apnea or the intermittent hypoxia could be cardio-protective via the ischemic preconditioning event. Serial sleep studies have shown the progressive reduction of the Apnea / Hypopnea Index (AHI) from the admission in Coronary Care Unit (CCU) to 6 weeks, 12 weeks and 6-month follow up, making necessary to re-assess the severity of OSA after discharge. Therefore, further research in this field is necessary to screen and predict those ACS patients who may experience a change in their AHI index over time.
This study aims to determine the overall accuracy, sensitivity, and specificity of the Belun Ring device in evaluating obstructive sleep apnea by comparing the device to the attended overnight in-lab polysomnography which is the gold standard for diagnosis of obstructive sleep apnea. Our hypothesis is that the Belun-Ring, a type 4 portable monitoring device, is overall sensitive and specific for evaluation of obstructive sleep apnea when compared to the attended overnight in-lab polysomnography.
In this paper, it is postulated that in sedentary patients with moderate-severe sleep apnea diagnosed by a sleep test, an increase in physical activity stimulated by the use of a pedometer during a period of 6 months can reduce the severity of OSAS by decreasing the number of respiratory events during sleep and when controlling for vascular risk factors.
This study evaluates epigenetics in morbid obese patients who are waiting for bariatric surgery. A home cardiopulmonary polygraphy is performed to evaluate for the presence of sleep-disordered breathing. The principal investigator make the decision of starting CPAP among patients with obstructive sleep apnea according to current clinical guidelines. One year follow up after bariatric surgery will be performed. A total of 5 visits will be scheduled: two of them before bariatric surgery and 3 after (3, 6 and 12 months). At every visit, all patients had: sleep questionaries, blood samples, EKG-Holter and spirometry are collected.
This research study aims to find out if a single oral dose of steroid after tonsillectomy will reduce pain and decrease the need for narcotic medications.
The aim of this study is to examine a new method of device configuration for the Inspire upper airway stimulator. First, the investigators will attempt to determine optimal configuration by quantifying changes in upper airway size with different implant configurations using awake nasal endoscopy. The configuration/voltage that results in the greatest increase in upper airway size and is tolerated by the patient will be selected. Participants will then undergo a sleep study so that increased airway size may be correlated with changes in sleep study parameters including AHI and oxygen desaturation index (ODI). Airway size and sleep study parameters using the standard device configuration (+-+)/voltage will be compared to airway size and sleep study parameters using the test, or "optimal," configuration/voltage to determine the usefulness of awake endoscopy in activation of the Inspire device.
The principal objective is to evaluate the effect of CPAP treatment on blood pressure (BP) in normotensive patients with nondipper circadian pattern with sleep apnea-hypopnea syndrome (SAHS). The secondary objectives are: i) To evaluate the prevalence of the different circadian patterns of BP in ambulatory blood pressure monitoring (ABPM) ii) To establish the relationship between CPAP compliance and BP response; iii) Identify which ABPM variables and biomarkers are related to BP response; iv) Evaluate changes in the biomarkers' profile after CPAP treatment. Methodology: Open-label, parallel, prospective, randomized and controlled trial including normotensive patients with nondipper circadian pattern diagnosed with severe SAHS without significant somnolence. 64 patients with nondipper circadian pattern will be included and will be randomized to receive CPAP (32) or conservative treatment (32). ABPM and blood sample collection will be performed at the beginning of the study and at 3 months.