View clinical trials related to Sleep Apnea, Obstructive.
Filter by:Simultaneous operations on the thyroid gland and hyoid suspension in patients with combined thyroid pathology and moderate to severe OSA.
The ROCK (Rho-associated coiled-coil containing kinases) play a critical role in the pathogenesis of cardiovascular diseases and left ventricle hypertrophy (LVH). ROCK activity can be used as a clinical biomarker for the diagnosis and monitoring of cardiovascular disorders. Obstructive sleep apnea (OSA) increase cardiovascular disease and LVH. Continuous positive airway pressure (CPAP) is the standard therapy for OSA. This study investigate the effect of CPAP on ROCK activity and left ventricle mass.
Sleep apnea is a common under-diagnosed medical disorder, and moderate to severe disease is found in approximately 9% of men and 4% of women. The disease is characterized by repetitive collapse of the airway during sleep, causing sleep disruption, episodic low oxygen levels, and daytime sleepiness. Also, patients with sleep apnea are at high risk of developing cardiovascular disease (including strokes and heart attacks). Partly, this is because the episodic low oxygen levels followed by higher oxygen levels due to sleep apnea results in the generation of reactive oxygen species (unstable and potentially toxic substances caused by interactions with oxygen) and a state of "oxidative stress." Oxidative stress is an important contributing factor to heart disease. We are interested in determining whether treatment with antioxidants, which are substances that help reduce oxidative stress, helps cardiovascular health in patients with sleep apnea. Specifically, we want to determine whether treatment improves blood vessel function (an early sign of heart disease), and blood/urine markers of cardiac risk (i.e., inflammation and oxidative stress). Eighty adult patients with moderate to severe sleep apnea will be asked to participate. They will have their blood vessel function measured with a non-invasive finger probe, and blood/urine will be collected to measure the cardiac risk markers. Patients will then be 'randomized' to one of two groups: 50% chance that the patient will be asked to take an antioxidant, and a 50% chance that they will be asked to take a placebo tablet (though he/she will not know which one they are taking). After 8 weeks, blood vessel function and markers will be remeasured to determine if antioxidants help patients with sleep apnea.
This is a prospective interventional study to better understand i) the prevalence of Obstructive Sleep Apnea (OSA) in Heart Failure with preserved Ejection Fraction (HFpEF), ii) its hemodynamic correlates, and iii) the impact of intervention with Continuous Positive Airway Pressure (CPAP) on quality of life.
Polysomnography (PSG) has some disadvantages, such as time-consuming, effort-consuming, long appointment time and high cost. During PSG examination, multiple sensors need to be placed in the patient's head, face, neck, chest and limbs, and sensors are needed to monitor data throughout the night. It is difficult for young children to cooperate, and it is easy to fail due to inaccurate sensor signal acquisition. PSG examination may miss diagnosis or underestimate the disease due to the first night effect. Based on the above reasons, the application of PSG in clinic, especially in pediatric patients is limited. The reflective optical path detection can be used to measure the peripheral blood oxygen saturation in the flat part of human skin. The investigators intend to use a reflectance pulse oximeterto evaluate its reliability and validity in the diagnosis of OSA in children at the same time as PSG.
To create a validated computational tool to predict surgical outcomes for pediatric patients with obstructive sleep apnea (OSA). The first line of treatment for children with OSA is to remove their tonsils and adenoids; however, these surgeries do not always cure the patient. Another treatment, continuous positive airway pressure (CPAP) is only tolerated by 50% of children. Therefore, many children undergo surgical interventions aimed at soft tissue structures surrounding the airway, such as tonsils, tongue, and soft palate, and/or the bony structures of the face. However, the success rates of these surgeries is surprisingly low. Therefore, there a need for a tool to improve the efficacy and predict which surgical option is going to benefit each individual patient most effectively. Computational fluid dynamics (CFD) simulations of respiratory airflow in the upper airways can provide this predictive tool, allowing the effects of various surgical options to be compared virtually and the option most likely to improve the patient's condition to be chosen. Previous CFD simulations have been unable to provide information about OSA as they were based on rigid geometries, or did not include neuromuscular motion, a key component in OSA. This project uses real-time magnetic resonance imaging (MRI) to provide the anatomy and motion of the airway to the CFD simulation, meaning that the exact in vivo motion is modeled for the first time. Furthermore, since the modeling is based on MRI, a modality which does not use ionizing radiation, it is suitable for longitudinal assessment of patients before and after surgical procedures. In vivo validation of these models will be achieved for the first time through comparison of CFD-based airflow velocity fields with those generated by phase-contrast MRI of inhaled hyperpolarized 129Xe gas. This research is based on data obtained from sleep MRIs achieved with the subject under sedation. While sedating the patient post-operatively is slightly more than minimal risk, the potential benefits to each patient outweigh this risk. As 58% of patients have persistent OSA postsurgery and the average trajectory of OSA severity is an increase over time, post-operative imaging and modeling can benefit the patient by identifying the changes to the airway made during surgery and which anatomy should be targeted in future treatments.
Chronic respiratory diseases such as obstructive sleep apnea syndrome (OSA) and chronic obstructive pulmonary disease (COPD) constitute a major public health problem, due to their high prevalence, but especially because of their cardiovascular and metabolic morbidity and mortality and the associated costs for the health system. The organization of long-term management of these diseases is now part of the e-health process, digital health with the use of massive "big data" generated by care and follow-up. Therapeutic patient education and the integration of connected objects will allow personalized therapeutic education support with interventions by local medical staff adapted to the needs of the patients. This will also allow to objectify the effect of treatments such as continuous positive airway pressure (CPAP) for OSA or non-invasive ventilation (NIV) and/or oxygen therapy for COPD, not only on the prevention of respiratory decompensation but also on cardiovascular and metabolic risk factors which are major elements of the prognosis. This project will therefore make it possible to demonstrate the feasibility and to deploy a multi-actor care pathway in the territory. The investigators propose a prospective clinical study, conducted at the Verdun Hospital, with the main objective of studying the evolution of the quality of life of patients with a chronic respiratory pathology, during an integrated management at home for 6 months. The secondary objectives: - To study the evolution of the following parameters, before treatment (at inclusion) and after 6 months of integrated management: 1. Treatment compliance (CPAP or NIV/oxygen therapy) 2. Physical activity 3. Weight 4. Mean arterial pressure 5. Oxygen saturation, heart rate and respiratory rate for COPD patients 6. Severity of COPD for the patients concerned 7. Daytime sleepiness 8. Fatigue 9. Patient acceptability of the use of connected objects - To analyze the trajectories of the measures collected throughout the integrated management to identify specific profiles. - To analyze the daily data of the different connected objects and treatments with regard to the patients' profiles (according to age, gender, comorbidities, OSA or COPD group).
The prevalence of obstructive sleep apnea (OSA) is a significantly higher in people after spinal cord injury (SCI) than in the general population. As a positive pressure therapy (CPAP) is often poorly tolerated, a mandibular advancement device (MAD) can be used for the treatment of OSA. The purpose of this study is to determine the efficacy of MAD in people with SCI and to verify their adherence to the therapy.
This research aims to provide pediatric patients with polysomnography (a sleep study) before and after orthodontic treatment to determine if the extraction of upper premolars for treating excessive overjet results in an increase of the AHI (Apnea Hypopnea Index) compared to similar patients treated without upper premolar extractions.
This clinical research study will investigate the effects of respiratory strength training on blood pressure and cardiovascular health in adults who are 50 years of age and older and have been diagnosed with moderate or severe obstructive sleep apnea.