Active clinical trials for "Sleep Apnea, Obstructive"

Patients with obstructive sleep apnea (OSA) are less physically active than healthy controls. First choice of treatment for OSA is continuous positive airway pressure (CPAP) therapy with an improvement in oxygen saturation and sleep. No improvement on physical activity has been shown. The current study would randomize patients in a standard care group (CPAP) and an intervention group (CPAP + telecoaching). Telecoaching will be performed for 3 months, with physical activity assessment before, after 3 months and 12 years.

Demand for Total Knee Arthroplasty (TKA) and Total Hip Arthroplasty (THA) is increasing steadily and is projected to continue trending upwards in the coming years. Concomitant with that trend is the increase in prevalence of obesity. Obesity serves as a common risk factor for osteoarthritis, obstructive sleep apnea and medical complications. Obstructive Sleep Apnea (OSA) is defined as episodes of obstructive apneas and hypopneas during sleep, with daytime somnolence. It occurs commonly in obese, middle age and elderly men and has an estimated prevalence of 5% - 9%. Pre-operative screening for elective surgical procedures is a critical component of a successful surgical outcome. Patients with medical comorbidities ideally will undergo medical treatment or optimization to minimize the risk peri-operatively and post-operatively. Obstructive sleep apnea has been shown in numerous studies to be a risk factor for cardiopulmonary complications following surgery. The contributing factors include alterations in REM sleep post-operatively and opioid induced respiratory suppression post-operatively. The STOP-BANG patient questionnaire is a validated patient survey that uses both objective and subjective data to screen patients for their risk of OSA. The sensitivity of the STOP-BANG questionnaire for moderate-to-severe OSA has been estimated as high as 97.74%. Authors have also shown that higher STOP-BANG scores are independently associated with increased risk for post-operative complication. Other authors have utilized similar pre-operative questionnaires to screen for occult pulmonary disease in patients scheduled for elective joint arthroplasty. They found a slightly increased incidence of OSA in this population as compared with the national average, over 50% of which were previously undiagnosed. The American Society of Anesthesiologists task force on perioperative management of patients with OSA published extensive guidelines aimed at reducing morbidity and mortality. Improved diagnosis pre-operatively could aid in proper compliance with these guidelines. These recommendations include preferential use of regional analgesia, reduction in systemic opioids, monitoring of oxygen saturation and nonsupine posture. The mainstay of treatment for OSA is a positive pressure airway device such as Continuous Positive Airway Pressure (CPAP) or in severe cases Nasal Intermittent Positive Pressure Ventilation (NIPPV). Post-operatively continuation of these treatments in patients with known OSA is often recommended. Some authors have demonstrated reductions in Apnea-Hypopnea Index postoperatively through the use of CPAP. However, a recent meta-analysis evaluating the effect of pre-operative or post-operative CPAP in patients with OSA concluded that the use of CPAP did not reduce post-operative adverse events. Given the projected increase in demand for joint arthroplasty, the ever-increasing incidence of obesity, the ambiguity surrounding the topic and the potential to clinically impact post-operative morbidity, mortality and health care costs, shows the need for further studies.

A randomized single blind clinical trial, with a larger sample size than previous studies , to evaluate the effectiveness of injection snoreplasty in the treatment of patients with snoring and obstructive sleep apnea/hypopnea syndrome (OSAHS) compared to oropharyngeal exercises, a low cost therapeutic modality.

Many researches have shown that patients with Obstructive Sleep Apnea (OSA) and often also the family members have a decreased quality of life, problems related to the sexual sphere, depressive disorders and anxiety problems. To date still remains controversial the relationship between OSA and quality of life, also the link between sleep apnea syndrome and depression is unclear. In adult patients with OSA the treatment of choice is the application of a continuous positive airway pressure (CPAP: Continuous Positive Airway Pressure) at the opening of the airways. With the CPAP treatment the sleep normalizes and daytime sleepiness fades or disappears. Many studies have shown that this treatment determines improvement of the medical and psychological status. However, the rate of non-adherence to treatment reported in the literature is about 46-83%, considering as adherence the use of CPAP for at least 4 hours per night. A recent study has shown that CPAP used as a single treatment in patients with OSA and depression, has reduced the depressive symptoms but in a significant percentage of patients (42%), the depressive symptoms remained unchanged or worsened. At the present time have not been published, to our knowledge, studies concerning the effectiveness of the combined treatment of CPAP and psychological support on the mood and on the quality of life OSA patients. Therefore the aim of this study is to evaluate the effects of the combined treatment with CPAP and psychological intervention with cognitive behavioural therapy on the mood and on the quality of life of OSA patients.

Obstructive Sleep Apnea (OSA) is a common clinical problem with a reported prevalence of 2% to 4% in the general population. The incidence was double on patients who had a diagnosis of OSA going for orthopedics surgery. Little literature composed mostly of case reports or small retrospective case-control studies exist examining the use of intrathecal opioids on outcomes in OSA patients is inconclusive. The primary objective of this study is to compare the post operative respiratory effect after single dose intrathecal morphine and intrathecal fentanyl on orthopedics patients who suspected or undiagnosed obstructive sleep apnea. Hypotheses Undiagnosed OSA patients who received intrathecal morphine are more likely to have respiratory events post-operatively.

Patients with Congestive Heart Failure (CHF) on non-Intensive Care Unit medical services and/or visiting our outpatient Congestive Heart Failure Clinic will be screened using the STOP-BANG Scoring Model. (STOP-BANG stands for Snoring, Tiredness, Observed Apnea, Blood Pressure, Body Mass Index, Age, Neck Circumference, Gender.) Patients with high risk of Obstructive Sleep Apnea (OSA) will be referred for evaluation and treatment of Sleep Apnea. They will be followed to determine if treatment of Sleep Apnea improves their quality of life and decreases their utilization of the Hospital and Emergency Department (ED).

This is a prospective study to see whether ultrasonography can predict difficult airway and/or predict obstructive sleep apnea syndrome (OSAS) in children.

The purpose of this study is to examine the effect on blood pressure of 3 months of treatment with continuous positive airway pressure (CPAP) in patients with obstructive sleep apnea (OSA). Hypothesis: Central 24-h blood pressure (BP) monitoring hedges day fluctuations in blood pressure more accurately than peripheral 24-h BP monitoring, because the measurement is painless and does not interfere with the patient / subject's activities during the daytime or nighttime sleep. Blood pressure is elevated in patients with OSA and falls during treatment with CPAP. 3. The renal treatment of salt and water is abnormal in OSA, improved during treatment with CPAP. 4. Quality of life improves during treatment with CPAP

The aim of this study is to examine how effective CPAP treatment and treatment with nebivolol are respectively on reducing blood pressure and on endothelial dysfunction in patients suffering from obstructive sleep apnea and hypertension.

Sleep is known to be a dynamic state of consciousness that is characterized by rapid fluctuations in autonomic activity as well as changes in body postures. Body postures during sleep influence the severity of sleep-disordered breathing because a supine position is associated with an increase in upper airway collapsibility and thus an increase in frequency and duration of snoring and apnea. Use of an adjustable bed to elevate patients' head might improve those conditions. The purpose of the present study is to determine whether use of an automatic adjustable bed is associated with reducing sleep-disordered breathing in patients with suspected obstructive sleep apnea (OSA) due to upper airway problems.