Active clinical trials for "Sleep Apnea, Obstructive"

The purpose of this study is to determine whether the Transcend Auto is as effective in treating obstructive sleep apnea as another device that is already on the market.

The purpose of this study is to determine whether Continuous Positive Airways Pressure (CPAP) improves quality of life, cardiovascular (blood pressure) and metabolic profile (glucose and lipid metabolism) in females with moderate-to-severe Obstructive Sleep Apnea (OSA).

Background：The methods of anti-snore (treatment of snoring ) can be divided into conservative, invasive and minimal invasive treatment. IN brief, minimal invasive surgery involving radiofrequency and pillar implant demonstrates significantly improvement of snoring without major complication. Previous studies usually evaluated snoring through subjective measures such as visual analog scale visual analog scale. Rare reports analyzed snore sound instrumentally and no report demonstrates the correlation between subjective perception and objective assessment of snoring before and after surgical intervention. Purposes： Development of snore sound spectrum. Exploration of the correlation between subjective perception and objective assessment of snoring. Comparison of changes in snoring before and after minimal invasive surgery and between two kinds of MIS to have a understanding of surgical impact in subjective and objective measurement. Method：We plan to enroll 30 subjects diagnosed by polysomnography as simple snoring or mild OSA with major complaint of snoring and favorable anatomic structure for minimal invasive surgery. All eligible subjects will be instructed the purpose, process and all related rights of this study and sign inform consent in outpatient clinic. Subjects start to complete Snore Outcome Survey (SOS, a validated questionnaire) and visual analog sure of snoring (VAS). Objective overnight snore sound recoding is arranged in sleep center. Subjects then receive minimal invasive surgery：radiofrequency or pillar implant of the soft palate by randomization. Both radiofrequency and pillar implant are common techniques in treating snoring and performed under local anesthesia as an outpatient procedure on sitting position. All subjects received repeated snore sound recording and completion of SOS and VAS three months after MIS. Outcomes Development of snore sound spectrum in sleep-disorder breathing patients. Correlation of parameters between snore sound recording (loudness, frequency, count, regularity, etc ) and clinical parameters. Correlation between objective (snore sound analysis) and subjective (SOS,VAS) assessment of snoring. Comparison of changes in snoring (particular in objective assessment) after radiofrequency or pillar implant. Comparison of changes in snoring between radiofrequency and pillar implant.

Firefighters work some of the most demanding schedules known under highly stressful and demanding conditions. The need to work frequent extended shifts and long work weeks leads to acute and chronic partial sleep deprivation as well as misalignment of circadian phase. Sleep disorders are common, costly, and treatable, but often remain undiagnosed and untreated and it is likely that a significant proportion of firefighters suffer from undiagnosed sleep disorders which will further impair their sleep and exacerbate fatigue.In the current proposal, we aim to address the health, performance and safety issues related to fatigue in firefighters and test the effectiveness of a Comprehensive Firefighter Fatigue Management Program (CFFMP) that we have termed 'Operation Healthy Sleep.'

This will be a prospective study in subjects with Obstructive Sleep Apnea (OSA) to characterize the clinical performance during a single night of therapy with a FRESCA mask compared with a single night of therapy with their existing nasal Continuous Positive Airway Pressure (CPAP) mask.

Currently Fisher & Paykel Healthcare (FPH) is developing a new full face mask. The objective of this clinical investigation is to evaluate the usability and acceptance of the investigative mask, the effectiveness of the seal and headgear. The participant will be randomised to use either full face mask prototype 1 or 2 as according to the randomization log for 7 ± 3 days in home. The participant will then crossover to the other full face mask prototype to use in home for 7 ± 3 days. Neither the investigators or the participants will be blinded to the study.

The purpose of this study is to test the effectiveness of two different weight loss diets on obstructive sleep apnea (OSA) severity.

The coexistence of chronic obstructive pulmonary disease (COPD) and obstructive sleep apnea (OSA) in the same patient has been termed overlap syndrome, affecting 1% of the U.S. population.The investigators propose to conduct this study that aims: (1) to compare right and left ventricular hemodynamic parameters using cardiac magnetic resonance imaging (MRI) in overlap syndrome vs. COPD only and OSA only; (2) to compare the effects of bi-level positive airway pressure (BPAP) vs. nocturnal oxygen therapy (NOT) on right ventricular (RV) hemodynamics in overlap syndrome. This study will allow us to test the hypothesis: (1) Patients with overlap syndrome have more RV dysfunction than those with COPD only or OSA only; (2) treatment of both hypoxemia and hypercapnia during sleep will improve RV hemodynamics compared with treatment of hypoxemia alone in patients with overlap syndrome.

The purpose of this study is to examine impact of Sleep Disordered Breathing (SDB) treatment in persons with chronic Spinal Cord Injury (SCI). The central hypothesis is that the treatment of SDB with Positive Airway Pressure (PAP) will improve cognition, sleep quality, health related quality of life (HRQOL), pain and Cardiovascular Disease (CVD) surrogate measures in persons with chronic SCI.

This double-blind, randomized controlled trial will evaluate the use of nasal corticosteroids for the treatment of the childhood obstructive sleep apnea syndrome (OSAS). Efficacy, duration of action and side-effects will be determined.