View clinical trials related to Sleep Apnea Syndromes.
Filter by:In a prospective observational study, the investigators investigate the prevalence of sleep disordered breathing in patients with severe valvular regurgitation and the effect of using the minimal invasive Clip technique on sleep disordered breathing.
An increased occurrence of cancer associated mortality has been described in patients with Obstructive Sleep Apnea Syndrome (OSAS). This association might be partially explained by an impaired cellular immune response that has been described in OSAS. Is has been suggested that OSAS impact immune cells by upregulation of the PD-1/PD-L1 pathway. Exosomes are small membrane vesicles released by numerous cells in the bloodstream. Exosomes have been shown to be implicated in cancer cells proliferation via a PD-1/PD-L1 pathway activation. This study will evaluate exosomal PD-1/PD-L1 expression in patients with OSAS as compared to controls and will further investigate their impact on immune cells function and proliferation capacities.
The objective of this retrospective observational study will be to investigate the between the Obstructive Sleep Apnea Syndrome (OSAS) and Sleep Bruxism (SB), in individuals diagnosed through polysomnography (PSG).
The goal of this study is to determine if sleep disordered breathing results in a measurable degree of overnight myocardial stress/injury in patients with acutely decompensated congestive heart failure. A secondary goal is to determine of a period of medical management attenuates this sleep disordered breathing-induced cardiac injury in this patient population.
The purpose of this study is to evaluate the effect of multiple doses of seltorexant compared with placebo on respiration during sleep in adult participants with mild to moderate obstructive sleep apnea.
This clinical trial compares the usual follow-up to a program of telematic control and self-management in a group of patients with severe obstructive sleep apnea-hypopnea syndrome (OSAHS), few symptoms and treated with continuous positive airway pressure (CPAP). The objective of the intervention is to achieve a CPAP compliance of ≥4 hours per day in at least 90% of the subjects.
Obstructive Sleep Apnea Syndrome (OSAS) and obesity tend to coexist and are often associated with arterial hypertension, dyslipidaemia, and insulin resistance [1]. Polysomnography (PSG) is the standard technique for diagnosing OSAS and determining its severity [2]. The results of the examination provide the Apnea-Hypopnea Index [AHI], or the Respiratory Disturbance Index [RDI]), which will be used to quantify apnea and classify its severity based on an international score. In general, an AHI scoring less than 5 is considered "normal" (5-15 mild sleep apnea; >15 moderate sleep apnea; ≥30 severe sleep apnea). In order to improve those parameters in obese patients who have been diagnosed with OSAS and are candidates for BS (BS), national and international guidelines recommend preoperative CPAP (Continuous Positive Airway Pressure) treatment in order to reduce anaesthesia risks [3-6]. Furthermore, several studies report that obese OSAS patients benefit from preoperative weight loss [1,7] (in terms of AHI index, night snoring and arterial hypertension). Obese patients who are candidates for BS often go on a preoperative diet in order to decrease weight and liver volume (especially of the left lobe) and correct any vitamin/mineral deficiency. The results of a recently published study show that 4 weeks of Ketogenic Micronutrient Enriched Diet (KMED) significantly reduce body weight, liver lobe volume and vitamin/mineral deficiencies in obese patients who prepare to undergo BS [8], with resulting foreseeable reduction of intraoperative complications and surgical time. To date, there are no prospective multicenter randomized trials demonstrating whether a preoperative ketogenic diet associated with CPAP use improves OSAS versus treatment with CPAP alone, with the possibility of reducing the preoperative treatment period. Aim of the study: To assess the clinical advantage in combining two preoperative strategies (CPAP + KMED) compared to preoperative treatment with CPAP alone, for the reduction of surgical risks in morbidly obese patients with severe OSAS who are scheduled for BS.
Obstructive sleep apnea (OSA) is a common and frequently-occurring disease. The incidence of OSA is more than 4% in general population, and as high as 20% - 40% in the elderly. At present, CPAP machines commonly used for OSA treatment includes traditional pressure fixed single-level CPAP machine and automatic pressure regulation CPAP machine. Studies have shown that the CPAP treatment pressure of OSA patients is normally below 11 cmH2O. Since the condition of OSA patients and the required CPAP treatment pressure may change over time, a CPAP machine with automatic pressure regulation function may theoretically better meet the needs of treatment. However, a recent large-scale clinical study with an average follow-up of four years showed that there was little need to change CPAP treatment pressure after titration. Although different types of CPAP have different functions, the basic principle is to keep the upper airway open and unobstructed to eliminate sleep apnea and hypopnea by continuously applying positive pressure to the upper respiratory tract through an air pump. A complex CPAP machine with functions such as pressure regulation, boost delay, end-expiratory pressure release will cost more than a single-function CPAP machine. Some patients from poor areas, even with severe OSA, may give up treatment when they can not afford CPAP machines that have not yet been included in national health insurance in China. In view of the current economic level in China, it is urgent to find an inexpensive and effective CPAP machine for the treatment of OSA and related complications. Recently, Guangzhou Yinghui Medical Technology Co., Ltd.and State Key Laboratory of Respiratory Disease have developed a new simple CPAP machine. The CPAP treatment pressure is fixed at the factory to 6 cm H2O (SKL), 8 cm H2O (SKM) and 10 cm H2O (SKH). Compared to traditional CPAP machine, only a power switch button is attached on the body, and the additional adjustment devices including display screen are removed, which not only reduces the cost of the CPAP machine, but also facilitates the operation of patients.
The purpose of this study is to investigate the utility of high-flow nasal oxygen during sleep endoscopy in obstructive sleep apnea patients.
Sleep apnea is common after extubation, approximately 71%, and is independently associated with hypertension and metabolic disease contributing to increased morbidity and mortality. Respiratory polygraphy is a simpler alternative to in-laboratory polysomnography for the management of more symptomatic patients with obstructive sleep apnea. The aim of this study is to evaluate the prevalence of sleep apnea after extubation by respiratory polygraphy.