Active clinical trials for "Apnea"

This investigation is a prospective, non-randomized, non-blinded study. This investigation is designed to evaluate the performance, comfort and ease of use of the F&P Toffee nasal pillows mask amongst obstructive sleep apnea (OSA) patients. Up to 45 OSA patients will be recruited from the Ohio Sleep Medical Institute (OSMI)

Obstructive sleep apnoea (OSA) is characterized by the presence in the polysomnogram test of more than five apnoea-hypopnoea episodes per hour of sleep (apnoea-hypopnoea index, AHI > 5), each episode lasting more than 10 seconds and being accompanied by oxygen desaturation or arousal. The prevalence of this syndrome is worryingly high (9% to 38%), affecting more men than women. OSA has an important negative impact on physical/psychological health and on these patient's quality of life. The gold-standard treatment for OSA is the continuous positive airway pressure (CPAP). However, CPAP compliance is really low, this device requiring a continuous chronic use in order to improve OSA and to avoid the relapse. Furthermore, it does not address OSA risk factors such as obesity and unhealthy lifestyle habits. Consequently, non-surgical and non-pharmacological interventions such as weight loss and lifestyle interventions are necessary and recommended by the American Academy of Sleep Medicine (AASM). The objective of this project, therefore, is the development and evaluation of a cognitive-behavioural treatment program for patients with moderate-severe OSA. The treatment will pursued weight loss through hypocaloric diet and moderate exercise, smoking and alcohol avoidance, and sleep hygiene. The efficacy of this treatment will be assessed in comparison with CPAP, in a short and medium term. This intervention could be considered a good alternative/combined management to the usual treatment of OSA (CPAP) once its efficacy to reduce and even cure OSA symptoms is demonstrated, especially if it is still effective in the long-term.

The Obstructive Sleep Apnea is characterized by obstruction of the upper airway during sleep (for at least 10 sec), with repeated breathing pauses, accompanied by oxygen desaturation in the blood and by sleep interruption with repeated arousals. The investigators hypothesized that good sleep hygiene, the execution of respiratory rehabilitation exercises, with specific myofascial exercises on the muscles that are compromised in the Obstructive Sleep Apnea, can improve the patient's clinical outcome and quality of life. The objective of this study is to evaluate the effect of respiratory rehabilitation with myo-functional exercises in mild obstructive sleep.

The effect of expiratory muscle strength training (EMST) on sleep quality, disease severity, and respiratory muscle strength has been previously investigated in OSA syndrom. Only the effects of the high-intensity short-term EMST study in moderate OSAS patients were studied. High intensity and low intensity EMST has advantages and disadvantages.The study aims to compare the effects of high (60% MEP) and low (30% MEP) expiratory muscle strength training (EMST) on disease severity, sleep efficiency, snoring, fatigue severity and quality of life in severe OSAS patients.

Overnight rostral fluid shift is one of the contributing factors for worsening obstructive sleep apnoea (OSA). Fluid shift has been recognized to play a role in the pathophysiology of sleep apnoea. Previous studies shown that fluid from the leg redistributes to the neck at night increases the neck circumference, hence indicating fluid accumulation in the neck. OSA patients are more susceptible to developing upper airway narrowing in response to fluid shift from the leg to the head and neck region. Previous studies were mainly done on Caucasian patients. The pathophysiology of OSA in Caucasian patients and Asian patients are different but both suffer a similar degree of OSA. The investigators would like to investigate if reducing leg swelling by a simple non-invasive intervention of wearing compression stocking during the day can attenuate sleep apnoea, and whether compression stocking is generally acceptable and well-tolerated among the general OSA population in Asia.

In general, central sleep apnea is not as common as obstructive sleep apnea but it is common in patients with heart failure. It has been repeatedly shown that central sleep apnea worsens the prognosis of heart failure. The current concept in the development of CSA is hypocapnia which causes temporary cessation of respiratory neural output. Different methods for supplement of CO2 have been used to eliminate CSA. However, variation of CO2 concentration during overnight treatment and tight-fitting mask made the treatment uncomfortable. It is important to develop a device with a comfortable mask to supply constant low dose CO2 without breathing difficulty. We recently developed a device for treatment of CSA.

This is a randomized, 4-period, placebo-controlled, crossover, phase 2 clinical study to examine the efficacy and safety of AD109 versus its individual components or placebo in patients with obstructive sleep apnea.

The purpose of the study is to see if metformin improves metabolism in patients with obstructive sleep apnea (OSA) using positive airway pressure (PAP) therapy. Metformin is approved by the Food and Drug Administration (FDA) for the treatment and prevention of diabetes. It is not approved for use in patients with OSA.

High flow nasal cannula (HFNC) ventilation therapy was found to improve the severity of obstructive sleep apnea in non-stroke subjects. The investigators hypothesized that HFNC might be effective in stroke patients with dysphagia who needed nasogastric tube feeding and can not receive continuous positive airway pressure ventilation for obstructive sleep apnea.

The purpose of this study is to evaluate the safety and effectiveness of the SleepFlex program for treatment of mild to moderate OSA