Active clinical trials for "Sleep Apnea Syndromes"

New stroke therapies are needed. This study seeks to provide the preliminary data needed to plan a future study that will evaluate the efficacy of using continuous positive airway pressure (CPAP) to treat stroke patients who have sleep apnea. Our goal is to use this therapy to reduce stroke symptom severity.

Comparison of automatic CPAP with fixed CPAP in patients with OSAS

Multicenter randomized double blind study versus placebo during 12 weeks with at first, an escalating dose period followed by stable dose period at the selected dose. This double-blind period can be followed by a 9 months open-label period if the patient wishes to continue with the study product.

This research is being done to examine: 1) how common obstructive sleep apnea (OSA) is in patients with non-alcoholic fatty liver disease (NAFLD), 2) whether the severity of OSA is related to the severity of NAFLD, and 3) whether treatment of OSA with continuous positive airway pressure (CPAP) improved NAFLD progression. OSA is a condition caused by repetitive collapse of throat tissue during sleep that leads to falls in oxygen level and sleep disruption. OSA can be caused by obesity, and especially by fat found in the neck and belly. NAFLD is a common disease linked to obesity. NAFLD is part of a disease spectrum, which can progress from steatosis (fatty liver) to nonalcoholic steatohepatitis (NASH), a progressive fibrotic disease, in which cirrhosis and liver-related death can occur. Recent evidence in patients with obstructive sleep apnea (OSA) indicates that OSA is associated with NASH. How common OSA is in patients with biopsy-confirmed NAFLD and the effect of OSA treatment with CPAP on NASH is unknown.

Prospective, randomized, blinded, cross-over study assessing the effectiveness of adaptive servo-ventilation (ASV) in treating patients who have obstructive sleep apnea (OSA) complicated by central sleep apnea (CSA) due to the chronic use of opioid medications

Treatment response of mild obstructive sleep apnea (OSA) to continuous positive airway pressure (CPAP) therapy and oral appliance (OA) is still controversial. The aim of this study is to evaluate the effect of CPAP and OA treatment on: objective and subjective sleepiness, cognitive deficits, mood changes, quality of life, inflammatory profile and metabolic cardiovascular and hormonal alterations in mild OSA subjects. Subjects with mild OSA (apnea -hypopnea index of 5 or more events per hour of sleep and less than 15), both genders, body mass index lower than 35Kg/m2 and age between 18 to 65 years will be included. They also must have a minimum mandibular protrusion of 7mm. Subjects will be randomly distributed in three groups: group 1 with CPAP, group 2 with OA and group 3 will be the control. At baseline evaluation, six months, one year and three years, all subjects will be submitted to sleep questionnaires, physical examination, ear-nose and throat evaluation, baseline polysomnography (and with CPAP for groups 1), Epworth Sleepiness Scale, Karolinska Sleepiness Scale, Stanford Sleepiness Scale, Maintenance of Wakefulness Test, Chalder Fatigue Scale, Neurocognitive testing, Beck Inventories of anxiety and depression, Functional Outcomes of Sleep Questionnaire (FOSQ), WHOQOL-BREF quality of life questionnaire, Short Form-36 quality of life questionnaire, questionnaire for sexual dysfunction, blood analysis for inflammatory, metabolic and hormonal evaluation, assessment of heart rate variability, 24 hour blood pressure monitoring and endothelial dysfunction. Sleep hygiene care was offer to three groups. Analysis mean and standard deviation will be used for descriptive statistical and a general linear model will be applied for analysis within groups on different time.

This study will look at an alternative new pathway for diagnosis and treatment based on simple procedures in the patient's own home compared with the current conventional laboratory based pathway. The purpose is to determine whether all patients with OSA require the more elaborate laboratory procedures, or whether a subgroup can be managed more simply.

This study will determine if mirtazapine, a unique antidepressant that does not disturb sleep, will improve obstructive sleep apnea (OSA). The design is randomized, crossover, double blind, and placebo controlled. On two consecutive nights of one week, the patients receive either 30 mg mirtazapine or placebo at bedtime. The following week, the alternative medication is administered. The patients have known mild to moderate sleep apnea. The endpoints of the study are the apnea + hypopnea index (AHI), sleep quality, and the degree of arterial oxygen desaturation.

The primary objective of the study is to evaluate the safety and tolerability of treatment with PROVIGIL in children and adolescents with excessive sleepiness (ES) associated with narcolepsy or OSAHS (obstructive sleep apnea/hypopnea), when administered for up to 12 months. Safety and tolerability will be evaluated throughout the study by means of adverse event information, clinical laboratory test results, vital signs measurements, and body weight and height measurements; quarterly physical examination findings; and 12 lead electrocardiograph (ECG) evaluations at the end of the study. In addition, the cognitive and behavioral effects of PROVIGIL will be assessed quarterly as measured by the Child Behavior Checklist for Ages 6-18 (CBCL/6-18), a brief psychiatric interview, and the Kaufman Brief Intelligence Test (KBIT 2).

The investigation is designed to evaluate the comfort, ease of use and performance of a trial nasal mask for the treatment of Obstructive Sleep Apnea (OSA) in the home environment.