View clinical trials related to Obstructive Sleep Apnea.
Filter by:Obstructive sleep apnea (OSA) is a severe type of snoring causing people to choke in their sleep. It affects millions of Americans, causing many health problems. For example, patients with OSA often feel very sleepy and are at risk of falling asleep while driving. OSA also causes elevated blood pressure, memory problems and can severely affect quality of life. Patients with OSA are often treated with a face-mask that helps them breath at night but can be difficult to tolerate. In fact, about half the patients eventually stop using this mask. Because there are few other treatments (and no drug therapy), many OSA patients are still untreated. Acetazolamide (a mild diuretic drug) has been used for over 50 years to treat many different conditions and is well tolerated. Recent data suggest, that acetazolamide may help OSA patients to not choke in their sleep and lower their blood pressure. Further, its low cost (66¢/day) and once-daily dosing may be attractive for OSA patients unable or unwilling to wear a mask each night. But previous studies had many limitations such as studying acetazolamide for only a few days and not capturing important outcomes. The goal of this study is to test if acetazolamide can improve sleep apnea, neurocognitive function and quality of life in adults with OSA, and to assess how it does that. Thus, the investigators will treat 60 OSA patients with acetazolamide or placebo for 4 weeks each. The order in which participants receive the drug or placebo will be randomized. At the end of each 4 week period the investigators will assess OSA severity, neurocognitive function and quality of life. Thus, this study will help assess acetazolamide's potential value for OSA treatment, and may also help to identify patients who are most likely to respond to acetazolamide. Ultimately, this work promises a drug therapy option for millions of OSA patients who are unable to tolerate current treatments
The VicTor Study is a randomized, double blind, placebo-controlled, 3-period, multiple-dose crossover study in participants with OSA.
Obstructive Sleep Apnea-Hypopnea Syndrome (OSAHS) is a cardiovascular risk factor due to intermittent hypoxia phenomena. Several etiological factors are involved in the pathogenesis of OSAS. Among them, the rostro-caudal displacement of fluid during dorsal decubitus has been highlighted. Under the effect of gravity, an accumulation of fluid is possible in the lower limbs, redistributing itself towards the upper parts of the body during the supine position. This phenomenon of fluid shift is usually evaluated by impedancemetry after a night in the supine position. However, some authors have shown that fluid shift occurs within 90 minutes after supine. Thus, in the perspective of future studies, in order to simplify the implementation of this evaluation and to reduce the time of hospitalization necessary for the subjects participating in the study, we would like to verify the correlation between the impedancemetry measurement at T 90 min and that obtained after one night of supine position. This is a single-center, prospective, open-label study at the Poitiers University Hospital. We will include 30 patients over 18 years of age admitted to the regional sleep pathology center for suspected nocturnal respiratory disorders to receive polysomnography and able to provide written consent.We excluded : patients younger than 18 years of age, A history of vascular surgery of the lower limbs such as varicose vein surgery, vascular bypass surgery, carcinological surgery with lymph node dissection, the presence of metallic implants in the lower limbs or spine or implantable cardiac devices, those not receiving Social Securitý or not receiving it through a third party, persons receiving enhanced protection, namely minors, and persons deprived of libertý by a judicial or administrative decision, persons staying in a health or social institution, and adults under legal protection.we will perform an impedance measurement at T0, T30, T90, and after overnight supine. Impedance measurement is performed using electrodes delivering a low intensity current of known frequency allowing the study of the liquid volume.
The aim of this research is to verify the ability of counterfactual thinking about medical decisions in individuals with obstructive sleep apnea syndrome when compared with healthy individuals
Published data suggest that the glossopharyngeal nerve innervates pharyngeal musculature important for maintenance of upper airway patency. The investigators propose a study examining the anatomic variation of the glossopharyngeal nerve and the effect of electrical stimulation on muscle recruitment and upper airway patency.
Study name: Validation of a Ring-type Wearable Device for Blood Oxygen Monitoring and Obstructive Sleep Apnea Syndrome Screening in Adult Chinese. Objective: 1) To examine the accuracy of blood oxygen monitoring assessed via a ring-type wearable device in comparison to traditional finger clip pulse oximeter; 2) To assess the agreement between the ring-type wearable device and PSG monitor on OSAS screening. Study design: Clinical diagnostic trial. Study population: Individuals who are willing to participate in the study and sign the informed consent are considered to be eligible. Specific inclusion criterias include: 1) Agree to receive overnight polysomnography and wear the ring-type device at the same time; 2) At least 18 years old. Sample size estimation: About 200 participants. Timeline: Start of subjects' enrollment: Dec 2022; End of subjects' enrollment: Oct 2023; End of study: Oct 2023. Organization: The Centre for Epidemiological Studies and Clinical Trials, Ruijin Hospital, Shanghai, China.
The primary objective of this study is to determine the longer-term (6 months) effect of CPAP therapy on change in 24-hour mean blood pressure (24hMBP) in OSA subjects with the excessively sleepy symptom subtype.
Study name: Screening, Diagnosis and Treatment of Obstructive Sleep Apnea Syndrome in Hypertensive Patients in China: A Prospective National Multi-center Registry. Rationale: Obstructive sleep apnoea syndrome (OSAS) is a common secondary cause of hypertension and significantly correlated with the risk of cardiovascular and cerebrovascular diseases. However, continuous positive airway pressure (CPAP) only shows modest blood pressure lowering effect, although it is effective in the relieve of daytime sleepiness and other symptoms of OSAS. One of the possible reasons for the low antihypertensive efficacy might be the low adherence to CPAP therapy. Nonetheless, few studies systematically investigated CPAP adherence with regard to its prediction and clinical relevance for cardiovascular protection and prevention. Objective: 1) To evaluate short- and long-term CPAP adherence in patients with hypertension and obstructive sleep apnea syndrome; 2) To investigate the predictors of short- and long-term CPAP adherence; 3) To explore the correlation between the CPAP adherence and blood pressure, target organ damage and the incidence of cardiovascular and cerebrovascular events. Study design: Prospective, multi-center, observational study. Study population: Patients with hypertension who are suspected to have obstructive sleep apnea syndrome due to snoring, daytime sleepiness and other related symptoms are considered eligible and should meet the following criterias: 1) Agree to participate in the study and sign the informed consent; 2) At least 18 years old; 3) STOP-Bang questionnaire, score ≥3 points; 4) Complete polysomnography in hospital; 5) Currently on CPAP therapy. Follow up: 3, 6 and 12 months after registry. Sample size estimation: At least 633 patients. Timeline: Start of subjects' enrollment: Jan 2023; End of subjects' enrollment: December 2026; End of study: December 2026. Organization: The Centre for Epidemiological Studies and Clinical Trials, Ruijin Hospital, Shanghai, China.
The SFAR (French society of anesthesiology and ICU) proposed a method to detect OSA (Obstructive Sleep Apnea) patients via videoconference. The aim of this study is to compare the result of this method with the results of polysomnography (PSG) which remains the gold standard in the detection of OSA patients.
OSA (Obstructive Sleep Apnea) represents a major risk of postoperative complications. Predictive scores have been developed as the STOP-Bang score and the DES-OSA score. These scores take into account morphological parameters such as weight, height, and neck circumference. These data can be contained from the patients (self-reported) or by the measurements performed by a physician. The aim of this study is to compare the accuracy of both measurements (self-reported by the patient or measured by the physicians).