View clinical trials related to Sleep Apnea.
Filter by:Changes in epigenetic regulation of genes involved in systemic inflammation and metabolic dysfunction in OSA are linked with accelerated cardiovascular morbidity.
Investigators hypothesize that CPAP treatment for suppressing OSAS in combination with a physical activity program will optimize 24-hour blood pressure control in patients with OSA-related resistant hypertension.
The investigators aimed to evaluated the role of bedside sleep medicine in an cardiology intensive care unit. The patients will be submitted to a overnight polysomnography. Those individuals with sleep apnea will be treated with CPAP during the ICU admission. Also, the investigators will identify the factors that compromise the sleep and will act to minimize them to improve the sleep quality. After the interventions, the investigators will evaluate if there are reduced days of hospital admission, major cardiovascular events (infarction, reinfarction, heart failure and stroke) and overall mortality.
Not all patients with the Obstructive Sleep Apnea Syndrome (OSAS), mostly mild, have excessive daytime sleepiness. Sleep fragmentation provides the performance decrease with increasing reaction time to external stimuli and correlates with excessive sleepiness. So, the study aims at assessing the effect of sleep fragmentation on the Reaction Time and it`s maintenance in patients with OSAS compared with healthy, to better clarify were patients with and without somnolence differ. For that, will be recruited 30 male volunteers aged between 20 and 50 year old to participate in the study. They will be distributed in three groups: "CONTROL" (without symptoms of sleepiness and apnea and hypopnea index (AHI) less than 5), "SS" (with AHI between 5 and 15 without symptoms of somnolence) and group "CS" (with AHI between 5 and 15 with symptoms of somnolence). The groups will undergo a polysomnography and subsequently, the Test and Maintenance of Wakefulness and PVT Battery Tests. The reaction time will be compared, as well as the ability to keep the reaction time over time between groups to see whether there is a difference between the motor performance throughout the day and the perception of sleepiness.
The purpose of this study is to evaluate the feasibility and the effectiveness of sleep apnea screening program for patients at risk in community pharmacies.
Principal aim: To determine the prevalence of Sleep Apnea- Hypopnea syndrome in obese children. Secondary aim: 1. To fix the implication of the adenotonsillar hypertrophy, the obesity and the hormonal factors in the pathogeny of SAHS in children. 2. To determinate of clinical and neurophysiologic characteristics of childhood SAHS associated with obesity. DESIGN: A prospective transversal study.
Obstructive sleep apnea (OSA) is a prevalent sleep breathing disorder in the general population in which recurrent collapse of the upper airway occurs during sleep. OSA is more prevalent in subjects with stroke and is associated with a 3 fold increased risk of stroke. This makes it a serious public health problem. Approximately 50% of subjects with OSA are asymptomatic and are often only detected following investigation for the cause of heart disease or a stroke. In subjects who are treated for OSA many are intolerant or poorly compliant with treatment. Therefore, the identification of those subjects with OSA most at risk of adverse consequences such as stroke is important, so that treatment compliance can be improved. Therfore, the investigators want to determine if compared to subjects without OSA, subjects with OSA have evidence of increased stroke risk by assessment of changes in cerebral blood flow (cerebrovascular reactivity) as measured on Doppler ultrasound of the middle cerebral artery (TCD) and blood oxygen level-dependent magnetic resonance imaging of patterns of cerebral blood flow (BOLD MRI) to two stimuli. These stimuli include increased carbon dioxide concentrations (causes increased cerebral blood flow) and reduced oxygen concentrations (causing decreased cerebral blood flow). In order to deliver these stimuli the investigators will use a special machine (RespiractTM) which allows for the precise control of carbon dioxide and oxygen concentrations in the lungs and blood. The precise control of carbon dioxide and oxygen in conjunction with BOLD MRI has enabled the production of detailed maps of the brain that identify areas of healthy and abnormal blood supply.
The NUMEVOX cohort is intended to follow-up the macro and microvascular dysfunction in relation to adipose tissue repartition in patients with metabolic syndrome associated to liver steatosis, sleep apnea. Duration of the follow-up is 3 years for each patient entering the cohort.
Sildenafil has been shown to aggravate sleep-disordered breathing in patients with severe obstructive sleep apnea. The aim of the present study is to examine the frequency of sleep-disordered breathing in obese patients who are candidates for treatment with sildenafil for sexual dysfunction. In addition we wish to assess the effect of sildenafil on sleep-disordered breathing.
Lay title: A study of breathing pauses during sleep in patients on long term opiates. Sleep apnoea is a term which refers to frequent breathing pauses during sleep. Breathing can stop at night due to the upper airway collapsing (Obstructive sleep apnoea)or reduced signals from the brain driving breathing (central sleep apnoea). Clinical observation has noticed that patients on opiates have an increase in sleep apnoea. Hypothesis: This study looks at the relationship of opiates (when used for patients chronic pain) and the occurrence of sleep apnoea. It is expected that there will be an increase in sleep apnoea (particularly of the central variant) particularly in patients on long term opiates.