View clinical trials related to Sleep Disordered Breathing.
Filter by:This is a short term open, randomized cross over trial to explore and compare the efficacy of pharmacological carbonic anhydrase (CA) inhibition on obstructive sleep apnea (OSA) related hypertension. Patients will be randomized to receive Acetazolamide(Diamox®)(ACZ), Continuous Positive Airway Pressure (CPAP)or CPAP plus ACZ for 2 weeks. Following a 2 week wash-out period all study participants will receive the alternative treatment regimen. The total length of the study will be 10 weeks. The effects of carbonic anhydrase inhibition on blood pressure,hemodynamics and sleep apnea will be investigated. Study hypothesis: Carbonic anhydrase inhibition alone or in combination with nCPAP will prominently reduce blood pressure in patients with OSA. Further it is hypothesized that CA inhibition will induce a direct pharmacological effects on vascular stiffness as evidenced in overnight non-invasive assessments of vascular stiffness and that this effect will be particularly strong in patients also responding with a reduction of blood pressure.
The objective of this study is to determine if a non-invasive technique, using an innovative analysis of electrocardiogram (ECG) data, would allow for detection of respiratory events during sleep and discrimination between central and obstructive apnea. Obstructive Sleep Apnea (OSA) is the most common respiratory disturbance seen during sleep, with an estimated prevalence of 10 % in the population and is strongly associated with the development of cardiovascular disease. In patients with underlying cardiac disease, particularly in heart failure (HF), central respiratory events such as Cheyne-Stokes Respiration (CSR) are often seen during sleep. The presence of CSR is also associated with increased cardiovascular morbidity and mortality. Currently, the identification and classification of sleep related respiratory disturbances is performed during over-night sleep studies (polysomnography), which are labor-intensive, time-consuming, expensive and difficult for patients. Thus, the development of alternative techniques to assist in the identification of those events in the outpatient setting is of marked importance for widespread screening of sleep apnea.
The purpose of this study is to better understand how sleep apnea, a common sleep disorder in which a person has one or more pauses in breathing or shallow breaths while sleeping, may affect pregnancy and to determine the effect of Continuous Positive Airway Pressure (CPAP), a treatment that uses mild air pressure to keep the airways open during sleep, for pregnant women with sleep apnea.
The purpose of this study is to determine the impact of sleep and breathing problems during sleep on memory, attention, and general well being (quality of life) in people with Parkinson Disease.
This study will be a randomized controlled trial involving obese women obtaining prenatal care at an obstetric care clinic. Study subjects will undergo prenatal care in a group setting or prenatal care with a behavioral intervention to improve sleep. Anthropometric measurements, blood draws, questionnaires and at home sleep studies will be completed at three specified times (two antepartum and one postpartum). Primary outcome will be a comparison of postpartum weight loss amongst the intervention and control groups.
Our preliminary data show for in cognitively-normal elderly, that Sleep Disordered Breathing (SDB) is associated with the increase of cerebrospinal fluid (CSF) phosphorylated-Tau (P-Tau) and total-Tau (T-Tau), decreases in medial temporal lobe glucose uptake (FDG-PET) and volume (MRI) and progressive memory decline, all of which have been shown to be useful in predicting future dementia in older adults. These findings raise the question as to whether Alzheimer's disease (AD) tissue damage causes SDB in the elderly, or alternatively, if SDB acts as a risk factor for AD neurodegeneration. In the proposed study, we will investigate these mechanistic hypotheses in cognitively normal elderly by examining the longitudinal associations between SDB and cognitive decline, novel MR neuroimaging and CSF biomarkers for neurodegeneration; while our secondary goal is to launch a pilot treatment study to aid in interpreting the mechanistic hypotheses and to examine the effects of nasal continuous positive airway pressure (CPAP) on cognitive decline and neurodegeneration.
Obstructive sleep-disordered breathing (SDB) in childhood is a disorder of breathing during sleep characterized by intermittent upper airway obstruction. Snoring, labored breathing and apneas reported by the parents are the most frequent symptoms.Obstructive SDB can result from many different abnormalities including large adenoids and tonsils or obesity. Intermittent upper airway obstruction during sleep is accompanied by low oxygen or high carbon dioxide in the blood and arousals from sleep. If obstructive SDB is not treated, complications may develop such as: i) enuresis; ii) delay in somatic growth rate; iii) central nervous system morbidity (e.g. hyperactivity and learning difficulties); and iv) elevated blood pressure. Overnight polysomnography (PSG) is considered the gold-standard method for defining severity of obstructive SDB and subgroups of children with snoring who should be treated. However, PSG is a labor-intensive, time-consuming and expensive diagnostic method, which is not available in many community settings. Thus, there is an urgent need for developing easy-to-use and low-cost diagnostic methods which can be used to determine severity of obstructive SDB and define subgroups of children with snoring and large adenoids and tonsils who will benefit from adenotonsillectomy (AT). Pulse oximetry is a widely available, non-invasive method which allows continuous monitoring of oxygen transport by hemoglobin. Episodes of upper airway obstruction are frequently accompanied by reductions in the hemoglobin oxygen transport (oxygen desaturation of hemoglobin).The hypothesis of this research project is that subgroups of children with snoring and adenotonsillar hypertrophy and certain abnormalities in oxygenation detected by nocturnal pulse oximetry will benefit from AT in a community setting.
Little is known on the prevalence of sleep disorders and their role in the increased prevalence of cardiovascular diseases in the developing world. We To assess the prevalence of major sleep disorders in a rural South American population, and to determine whether these conditions are associated with a poor cardiovascular health or with the occurrence of stroke or ischemic heart disease. This is a three-phase, population-based, door-to-door survey in Atahualpa. During phase I, all residents aged ≥40 years will be screened with validated Spanish versions of five questionnaires to evaluate major sleep disorders. In phase II, neurologists will examine persons suspected of having a sleep disorder and a random sample of negative individuals to assess the prevalence of these conditions and to validate the accuracy of questionnaires. In phase III, patients with a confirmed sleep disorder will undergo nocturnal polysomnography for achieving a more specific diagnosis. The occurrence of sleep disorders will be correlated with the cardiovascular health of the population as well as with the presence of stroke and ischemic heart disease. This epidemiological study may prove cost-effective in improving sleep conditions of people living in rural areas of developing countries, and may be used as a model for the evaluation of sleep disorders and their cardiovascular correlates in these populations.
This is an open label, controlled study. The investigators are studying if the FDA approved diabetes medicine liraglutide (Victoza®) can improve sleep apnea in adults. This study is testing liraglutide in 20 adults without diabetes that are diagnosed with sleep apnea.The treatment group will be compared to a control group of 10 adults without diabetes who have sleep apnea but will not use liraglutide. Both groups will continue receiving standard of care for their sleep apnea as prescribed by their managing sleep physician throughout their study participation. Everyone in the study will have two study visits and one overnight sleep study for research. Subjects who have not had a recent sleep study but otherwise qualify for the study, will have an additional research sleep study to determine the baseline severity of their sleep apnea. The study visits include fasting blood samples and breathing tests (pulmonary function test and hypercapnic challenge). There will be weekly phone visits that include a questionnaire on sleepiness. The group that takes liraglutide will check their blood sugar two times a day while on the medicine.
The primary purpose of this prospective, multicenter, randomized trial is to evaluate the safety and effectiveness of therapy delivered by the remedē® system in subjects with moderate to severe central sleep apnea and optimal medical management, compared to outcomes in randomized control subjects receiving optimal medical management and implanted but inactive remedē® systems.