View clinical trials related to Sleep Apnea, Obstructive.
Filter by:The purpose of this research study is to determine if auto-adjustable positive airway pressure (APAP) is an effective way to treat obstructive sleep apnea (OSA) in children. APAP is a device similar to continuous positive airway pressure (CPAP) that delivers pressure to the upper airway (nose and throat) to keep the airway from collapsing while during sleep. The difference is that APAP adjusts the pressure throughout the night with changes in resistance during breathing, and CPAP gives the same amount of pressure the whole time it is worn. APAP is currently widely used to treat adults with OSA, however, this device has not yet been extensively studied in children. There are two parts to this research study. Subjects will begin using APAP at the time of enrollment for 4 to 8 weeks. The investigators will compare the pressure measured by the APAP device over the 4-8 weeks with the pressure determined by a CPAP titration study. The titration study is a second overnight sleep study that is routinely ordered when a child with sleep apnea starts treatment with CPAP. It tells the doctor what CPAP setting should be used. In the second part of this study The investigators will compare the effects of APAP with CPAP to see what is reported as more comfortable and is used during more hours of sleep. This part of the study will last about 8 weeks and each subject will use both CPAP and APAP for 4 weeks each. Currently when someone is diagnosed with OSA there is a delay in starting treatment with CPAP until the results of the titration study are available. In this research, patients could be allowed to immediately start treatment with APAP. If APAP is found to be as safe and effective as regular CPAP, treatment with APAP could be used as an alternative to CPAP.
Polycystic ovary syndrome (PCOS) is one of the most common disease caused by hormonal imbalance and is also associated with overweight and obesity. It affects 5-10% of adolescent girls and women capable of having children. Polycystic ovary syndrome is associated with missed menstrual periods, hormonal imbalance, being overweight, and with a form of diabetes. Girls with polycystic ovary syndrome may have a breathing problem known as "sleep apnea." Sleep apnea may cause a person to stop breathing for short periods of time while sleeping. People with polycystic ovary syndrome are thirty times more likely to develop sleep apnea than those who do not have PCOS. If sleep apnea is not treated, it may lead to daytime sleepiness, poor school performance, high blood pressure, heart disease and diabetes. The purpose of this study is to understand how insulin function is affected in presence of sleep apnea in girls with polycystic ovary syndrome between 13-21 years of age as compared to girls with PCOS without sleep apnea. Insulin is one of the hormones made in your body to convert food into energy. In people with increase weight body cannot use insulin properly. The investigators also want to see if insulin action is also affected by sleep apnea.
Obstructive Sleep Apnea is a serious medical condition affecting an estimated 1-5% of children. The disease is believed to have several overlapping causes including large tonsils and small or narrow jaws. This prospective, randomized cross-over study will evaluate the effectiveness of orthodontic treatment of narrow upper teeth and jaws compared to the current standard of care which is surgical removal of the adenoids and tonsils. Patients will be evaluated by both an orthodontist and ENT physician, complete a series of questionnaires and undergo an overnight sleep study, both initially and after undergoing the randomized treatment. Patients who on reassessment have residual symptoms of sleep apnea will then be crossed over and receive the other form of treatment. The levels of improvement to both subjective (questionnaire) and objective (overnight sleep study) measures of sleep apnea will then be compared. The null hypothesis is there is no significant difference in improvement between maxillary expansion and adenotonsillectomy in the objective and subjective outcome measures in children with mild to moderate obstructive sleep apnea.
In this research study the investigators want to learn more about the risk of developing blood vessel and heart disease from night-time sleep apnea. Sleep apnea is a condition that results from blocking of the throat during sleep. This study examines changes in blood pressure, blood vessel stiffness, heart size and levels of specific substances in the blood which may cause heart disease. This study is for children ages 5 to 13 years. The study involves 3 visits over 18 months. The first and last visits include an overnight sleep study (polysomnography or PSG). All the visits will include: - body measurements to measure growth and how weight is distributed, - resting blood pressure measurements, - heart measurements (electrocardiogram and ultrasounds of the heart and blood vessels), - 36 hour home ambulatory blood pressure measurements, - blood tests to look at things like fats, cholesterol, inflammatory factors, - questionnaires Optional parts of the study include DNA and for children 8 years and older, testing and questionnaires to learn more about how sleep relates to learning, memory and behavior issues.
Conceptually, awareness of pressure occurs only during wakefulness. Thus reducing the pressure during wakefulness may improve therapy comfort and potentially adherence without compromizing therapy efficacy. SensAwake™ is a unique pressure relief technology developed by Fisher & Paykel Healthcare which detects irregularity in the flow signal indicative of the transition from sleep to wake. When the transition from sleep to wake is detected the device promptly reduces the pressure to help facilitate a return to sleep. The purpose of this study is to compare adherence and sleep quality outcomes in patients treated by CPAP with and without SensAwake technology. It is hypothesised that participants with SensAwake on will have improved adherence and sleep quality.
We hypothesize that patients with untreated OSAS will have more visceral fat, fatty liver and increased carotid artery thickness whereas treatment with CPAP may reduce the mesenteric and liver fat, plasma lipids, carotid artery thickness.
The purpose of this study is to assess the efficacy and user preference of the Newport AutoSet for Her in female obstructive sleep apnea (OSA) patients. Efficacy will be evaluated by comparing the apnea and hypopnea index (AHI) and oxygen desaturation index (ODI) of the Newport AutoSet for Her algorithm to a standard algorithm. User preference will be evaluated by subjective feedback relating to comfort, ease of falling asleep, sleep disturbance and feeling of being refreshed.
In the near future more than 20% of the European population will be over 65 years old and the prevalence of obstructive sleep apnea (OSA) in this aged population is known to be higher than 50%. OSA is a risk factor for cognitive dysfunction in middle-aged subjects, but the relationship between cognitive impairment and sleep breathing disorders (SBD) in the elderly has scarcely been observed. The aim of this study is to investigate cognitive performance in elderly OSA patients, the corresponding brain morphology changes and biological markers and their reversibility with continuous positive airway pressure (CPAP) treatment.
This study proposes to evaluate the clinical applicability of the ExSpiron Respiratory Volume Monitor (RVM, ExSpiron™, Respiratory Motion, Inc.; Waltham, MA) in obese surgical patients undergoing general anesthesia. Previous work has demonstrated the ability of the ExSpiron monitor to provide non-invasive, real-time, continuous measurements of respiratory parameters such as tidal volume (TV), minute ventilation (MV) and respiratory rate (RR) mostly in normal weight patients but those studies did not specifically look at obese subjects. Respiratory depression, in the postoperative setting due to residual anesthetics and/or opioid administration, continues to be a significant cause of adverse outcomes. Obese patients are at increased risk for respiratory complications. Currently, there is no objective measure of early respiratory indicators for developing respiratory compromise. Current respiratory assessment in non-intubated patients relies on oximetry data and subjective clinical assessment. Pulse oximetry has been extremely helpful in recognizing oxygen desaturations but it is a late indicator of respiratory decline. There is no current device capable of giving real time ventilatory information such as tidal volume and minute ventilation of a patient that is not mechanically ventilated. The ExSpiron system utilizes an impedance based technology and proprietary algorithms (Respiratory Motion Inc.) to obtain these measurements. The study hypotheses are that the non-invasive, impedance-based RVM monitor will accurately reflect TV, RR and MV in obese surgical patients before induction of general anesthesia, during controlled ventilation and following extubation; that ExSpiron will accurately reflect the post-extubation respiratory status of the patient; and that apnea and hypopnea episodes in the recovery room as detected by the ExSpiron monitor are correlated with the individual risk for obstructive sleep apnea as determined by the STOP-Bang risk stratification.
The purpose of the study is to observe the Pilairo mask in a lab setting.