View clinical trials related to Sleep Apnea.
Filter by:Obstructive sleep apnea (OSA) is one of the most common sleep disorder. There are numerous conditions that are related to OSA, such as diabetes, cardiovascular diseases, and metabolic syndrome. If the patient with OSA have large tonsils, soft and largened uvula or flacid soft palate, one might benefit from operative treatment of OSA. The aim of our study is to find out whether an operative treatment is effective in mild OSA patients with carefully assessed anatomical predispositions. Our ultimate goal is to evaluate the effects of operative treatment in mild OSA itself and in the diseases related to OSA. We measure the cardiovasculary functions, symptoms, postoperative recovery, antropometry, laboratory tests, the quality of life, the quality of sleep and the inflammatory system in sleep apnea before and after the surgery.
The overall purpose of this study is to determine the effects of adaptive servo ventilation (ASV) and bi-level ventilators on Cheyne-Stocks respiration (CSR). CSR is a pattern of breathing characterized by hyperpneas followed by hypopneas and or apneas. Clinically, the physiologic changes translate to sleep fragmentation, excessive daytime sleepiness, reduced exercise capacity and possibly ventricular arrhythmias. The intent of the proposed intervention is to compare the efficacies of ASV and Bi-level ventilator on CSR.
The aim of the study is to investigate wether the adjuvant (postoperative) administration of acetazolamide can improve the surgical results after uvulopalatopharyngoplasty in patients with mild sleep apnea.
The hypothesis of the study is the following: Patients with sleep apnea-hypopnea syndrome have different pattern in the secretion of hormones. The chronic sleep disorganization that suffer patients with sleep apnea-hypopnea syndrome (SAHS) may affect the central mechanisms that regulate nutritive behavior and energetic balance, causing an alteration in the secretion of hormones that favour the appearance and/or development of obesity.
The objective of the study is to define and compare clotting- fibrinolysis patterns, platelet function markers and endothelial dysfunction in patients with SAHS before and after treatment and normal controls age and weight matched.
The purpose of this study is to determine whether hemodiafiltration, a new form of hemodialysis can improve sleep apnea in patients with end stage kidney disease.
AIMS:To know the effects of the treatment with nasal positive continuous airway pressure (CPAP) on systemic blood pressure and the expression of biological mediators, in systemic hypertension of recent diagnostic, whose have an apnea-hypopnea index > 15. METHODOLOGY: DESIGN: Prospective, multicenter, randomized study, of parallel groups and controlled with placebo, in patients diagnosed of systemic hypertension (SH) with an apnea-hypopnea index, by conventional polysomnography > 15. A total of 340 patients with recently diagnosed of SH and without any pharmacological treatment will be studied. All patients will be randomized to receive, alternatively, CPAP treatment with optimal pressure titled with a proved system, or Sham-CPAP for 12 weeks. MEASUREMENTS: A) Conventional polysomnography at baseline: B) Clinic: sleepiness (ATS, Basic Nordic Sleep Questionnaire and Epworth), quality of life (EuroQol); C) 24 hour blood pressure monitoring; D) Expression of biological mediators in blood: general determinations, endothelial, inflammatory, lipid, renin-angiotensin-aldosterone and adrenergic mediators. ANALYSIS. Baseline measurements of all the variables will be compared with the situation at six and twelve weeks. We will use the chi square test and the Fisher´s exact test (categorical variables), the t test for continous variables and repeated measures ANCOVA for the primary objective. The analyses will be done under the criterion of intention to treat and for protocol. The variables will be controlled by the compliance with the CPAP..