View clinical trials related to Obstructive Sleep Apnea.
Filter by:Obstructive sleep apnea syndrome (OSAS) is characterized by recurrent episodes of obstructive events (apnea and hypopnea) and intermittent hypoxia, which in turn contributes to the systemic inflammation that underlies this disease and its consequences (Ryan et al 2009, Gileles-Hillel et al 2014). This systemic inflammation leads to endothelial dysfunction, which contributes to the pathogenesis of cardiovascular complications in OSAS, in addition to the exposure to risk factors, such as male gender, older age, obesity, and lack of exercise (Lorenzi Filho et al 2010). Some red blood cells (RBC) and platelets indices have emerged as inflammatory biomarkers in various diseases (Tertemiz et al 2016) The severity of OSA is significantly associated with increase hematocrit, even after controlling for possible confounding variables. However, nocturnal hypoxemia in OSA does not usually lead to clinical polycythemia (Choi et al 2006). In patients referred with a clinical diagnosis of OSAS, RDW may be a marker for the severity of the condition. As RDW is usually included in a complete blood count, it could provide an inexpensive tool for triaging OSAS patients for polysomnography evaluation (Sökücü et al 2012). The hematological indices white blood cell count (WBC), neutrophil count, lymphocyte count, mean platelet volume (MPV), platelet distribution width (PDW), and red blood cell distribution width (RDW) have been proposed as alternative markers to those normally used clinically, e.g., interleukin-6 (IL6) and C-reactive protein, to evaluate the burden of inflammation in OSAS (Wu et al 2018)
The purpose of this study is to evaluate the influence of sleep apnea-hypopnea syndrome (SAHS) syndrome and treatment with continuous air pressure (CPAP) on the circadian intraocular pressure (IOP) patterns and its structural impact on the nerve fiber layer of the retina to analize the relationship between SAHS and glaucoma. OBJECTIVES: 1. To study the PIO and its fluctuations in patients with SAHS before starting treatment with CPAP. Objective 2. To assess the effect of CPAP on circadian IOP patterns. 3. Evaluate the effect of changes in IOP in patients with OSA treated with CPAP in the nerve fiber layer of the retina. METHODS: A prospective study to be monitored continuously for 24 hours IOP by contact lens device Sensimed Triggerfish (Sensimed AG, Switzerland). Objective 1. To monitore and compare the IOP for 24 hours at 74 patients diagnosed with SAHS before starting treatment with CPAP and 37 patients without OSA. Objective 2. To study the impact of CPAP treatment by a study design in two stages CPAP / sham CPAP. A first monitoring of IOP will be compared before starting treatment with CPAP, with monitoring a month (CPAP-sham CPAP) and 12 months after initiation of treatment with CPAP. Objective 3. To correlate the values obtained from the monitoring of IOP in the thickness of the nerve fiber layer of the retina, as measured by optical coherence tomography, at baseline and at 12 months after starting treatment with CPAP.
Background: To compare the efficacy of tonsillectomy and expansion sphincter pharyngoplasty (ESP) in the surgical treatment of obstructive sleep apnea (OSA). Methods: Patients with Friedman grade III-IV tonsil hypertrophy and OSA diagnosed with polysomnography were separated into two groups according to the surgery performed, as the classic tonsillectomy group (Group 1) and the ESP group (Group 2). The primary endpoint of the study was to determine the Apnea-Hypopnea Index (AHI) value. The preoperative and postoperative AHI scores and the decreases in these scores were noted. The change in AHI was calculated as a percentage (preoperative AHI - postoperative AHI/ preoperative AHI x 100) and the two groups were compared. An AHI value of <10 events/hour was accepted as cure.
The objective of this study was to compare different exercise modalities (moderate continuous intensity training, high intensity interval training, and inspiratory muscle training) on Apnea-Hypopnea index and oxidative stress in patients with Obstructive sleep apnea.
The goal of this prospective, randomized, open label, cross over study to assess the seal, comfort, usability, and performance of the prototype Oran Park mask system (referred to as Mask A in this study protocol) in the home environment. Comparisons will be made against Fisher & Paykel's Evora Full mask system (referred to as Mask B in this study protocol, an FDA cleared benchmark mask) and the participant's own mask. Patients diagnosed with Obstructive Sleep Apnea and are current CPAP users on a tube down full-face mask system will be recruited to the study to evaluate the Oran Park mask system and the Evora Full mask system for up to 7 nights each, in the home environment, whilst using their own CPAP device. The overall purpose is to evaluate the performance of the prototype Oran Park mask system compared to an FDA cleared benchmark mask (Evora Full) in relation to seal, comfort, usability, ease of use, preference, AHI, and objective therapy data.
The goal of this multi-site, prospective, randomized, double arm study without blinding is to test the usability of the Whitsundays mask system at home by patients with Obstructive Sleep Apnea. The main questions it aims to answer are: - How the Whitsundays masks performs in the home environment - What is the subject's first impression of the Whitsundays mask and what is their preference compared to their own mask - What is the difference between the subject's objective therapy data when using the Whitsundays mask compared to their own mask - Is there wear and tear of the Whitsundays mask and how frequently do the cushions need replacement Participants will be asked to use the Whitsundays mask for 90 days, answer questionnaires about the initial impression of the mask, the performance of the mask, and their preference compared to their own mask. Researchers will compare one group of subjects who will be provided with cushion replacements to another group who will only be provided with cushion replacements upon request to determine the need for cushion replacement, its frequency, and the reasons for cushion replacement during home usage.
Current Knowledge: Countless studies have been conducted to study the relationship between OSA and AF, and a significant association has been established between both diseases, owing to the numerous shared risk factors and a wide variety of pathophysiological changes resulting from both diseases being relevant to each other. Our study inspects this relationship from a cardiovascular standpoint, examining the prevalence of OSA in existing AF patients, which could be interpreted as AF being a risk factor for OSA development.
This study aimed to correlate serum uric acid levels and PAH in OSAHS patients.
This was an experimental clinical trial, Aim: To evaluate the role of early use of Continuous Positive Airway Pressure (CPAP) in management of moderate to severe Coronavirus disease 2019 patients at risk of Obstructive Sleep Apnea, enrolled patients are randomized into two equal groups;Non- CPAP group and CPAP group. Non-CPAP group will receive medical treatment plus oxygen therapy according to recommendation of protocol of the Egyptian Ministry of Health 2020 and CPAP group as in Non-CPAP group plus using CPAP.
The aim of this study is to explore the role of diet/lifestyle intervention on Positive airway pressure (PAP) treatment adherence in patients with obstructive sleep apnea (OSA).Specifically, we evaluated the effects of a combination of PAP and weight-loss Mediterranean diet intervention on improving PAP adherence, Body mass index (ΒΜΙ), daytime symptoms, mainly sleepiness and arterial blood pressure measurements over the effect of standard care alone.