Active clinical trials for "Sleep Apnea Syndromes"

This is a post-marketing surveillance study to investigate the efficacy and safety of the Negative Pressure Sleep Therapy System for the treatment of obstructive sleep apnea.

To assess prevalence of obstructive sleep apnea during pregnancy and its impact on prgnancy course and materno foetal wellbeing.

The objective of the study is to evaluate the impact of strength training on sleep apneas in the elderly. Individuals aged between 65 and 80 years and that presenting apnea-hypopnea index between 20 and 50 events per hour, measured by out-of-center portable polysomnography, will be recruited. Those included will be randomized to two groups: Intervention: consisted of 12 weeks, twice a week, of strength training; or control: consisted of lifestyle recommendations.

Obstructive sleep apnea (OSA) is a chronic, progressive and disabling disease and can affect functional capacity due to the weakness of the respiratory muscles. Therefore, the objective of this study is to evaluate the effect of inspiratory muscle training on functional capacity in patients with OSA. A pilot study will be conducted to calculate the sample. Individuals of both genders, diagnosed with obstructive sleep apnea moderate or severe (measured by polysomnography) will be invited and the data collected in the Sleep Laboratory of the Pronto-Socorro Cardiológico de Pernambuco (PROCAPE), located in Recife- PE- BRAZIL. The study deals with a test-clinical randomized double-blind.The intervention groups held inspiratory muscle training (IMT) and the load is equivalent to 40% of maximal inspiratory pressure (MIP). The evaluations will be performed once a week during twelve weeks. Control groups will be submitted to a simulated training with load less than 10% of MIP (insufficient charge to train the muscles), during the same period as the intervention group. The guidelines for the training and weekly evaluations will be performed by the responsible for the researcher physiotherapist in Cardiopulmonary Physical Therapy Laboratory (LACAP- UFPE). After the training period, the groups will be reassessed by the evaluation tests of functional capacity (ADL- Glittre Test and Ergospirometry), inspiratory muscle strength (manometer) and lung function (spirometry) and then compared. Expected results: The interventional groups will improve their functional capacity.

Primary aim: The MOSAIC trial aims to assess the impact of a mandibular advancement device (MAD) on Apnea-Hypopnea Index (AHI) in Asian patients with Heart Failure with reduced Ejection Fraction (HFrEF) and obstructive sleep apnea (OSA). The investigators hypothesize that the AHI was 60% lower after 3-month treatment with MAD than with sham MAD. Secondary aims: The investigators also aim to determine i. the interaction between ethnicity (Chinese, Malay, Indians) and the effects of MAD in lowering AHI; ii. the effect of MAD on cardiac remodeling (LVEDVI assessed by cardiac magnetic resonance imaging [CMR]); iii. the characteristic craniofacial skeletal anatomy (using coned beam computed tomography [CT]) associated with OSA in Asian patients with HFrEF; iv. the association between self-reported adherence to MAD and cardiac remodeling; v. the effects of MAD on biomarkers of HF (N-terminal pro-B-type natriuretic peptide [NT-proBNP],high sensitivity cardiac troponin T [hs cTnT], high-sensitivity C-reactive protein [hs-CRP], and ST2); Rationale: OSA is associated with incident HF. The investigators will study Asian patients because a body of evidence suggests mechanisms for OSA differ between Asians and Caucasians. While obesity is the major contributing factor in Caucasians, craniofacial skeletal anatomy (short mandible, maxilla, and cranial base and a large mandibular volume) plays an important role in the development of OSA among Asians. Using cone beam CT, it has been shown that Asians have shorter mandibular, maxillary, and cranial base lengths and a greater mandibular volume compared with Caucasians. Using a MAD to adjust maxillary-mandibular juxta-positioning to maintain a patent airway may be an ethnic-specific approach to treat OSA in Asians.

Objective: To analyze the impact of CPAP treatment on cognitive, clinical and quality of life domains in patients over 70 years of age with mild-to-moderate OSA Primary Outcome: Epworth scale and QSQ domains Secondary Outcomes: Neurocognitive variables and CPAP adherence

This is a crossover study comparing the effect of CPAP Fixed Pressure, CPAP FLEX -PLUS and Sensawake on sleep quality, adherence to treatments, and PSG parameters in patients with moderate to severe OSA.

The objectives of this study is to compare short-term outcomes of CPAP and Adjustable thermoplastic oral appliance in the treatment of obstructive sleep apnea. Study design is a randomized cross-over trial during 6-week period of each treatment in 50 patients. Primary outcomes are quality of life, degree of sleepiness, and severity of OSA determined by FOSQ ESS, and AHI or RDI, respectively.

Abstract Obstructive sleep apnea syndrome (OSA) is characterized by complete or partial collapse of a narrowed pharynx and it's associated with reduction in cerebral blood flow, cardiovascular disease, and neuropsychological deficits and reduces survival. In patients with AOS structural, metabolic and hypoperfusion cerebral were associated not only with physiological functions but also with attention and executive function. There is a higher association between apnea hypopnea index and Mini-Mental State Examination in individuals with the exon 4 of APO E gene, indicating that exon 4 of APO E gene confers an increased risk for cognitive decline in individuals with sleep apnea. The analysis of presence and consequences of OSA in cerebral structure, inflammation and neurovascular control can permit a better investigation of abnormalities in these individuals and implement interventions to reduce the risk of development of cognitive and cardiovascular impairment. The non-pharmacological intervention through exercise training can represent an important strategy for improvement in cerebral alterations, cognition and reduction in sleep apnea index. The purpose of present study is investigate the volume and metabolism cerebral, neurovascular control, cognition and exon 4 of APO E gene and their

Obstructive sleep apnea (OSA) is a situation of repetitive upper airway obstruction during sleep. For patients with severe OSA, continuous positive airway pressure (CPAP) therapy was the standard therapy, especially those with daytime sleepiness and cardiovascular comorbidities. Although CPAP is effective in OSA treatment, the poor adherence due to high pressure was often reported. Instead, oral appliance (OA) was the alternative for those who could not tolerance CPAP or mild to moderate OSA. Oral appliance was less effective in compared with CPAP, but OA is more tolerable and acceptable in OSA patients. Only one observation study addressed the effects of the combinations of OA and CPAP in OSA patients . The pilot study displayed combination therapy of CPAP and OA is effective in OSA patients and could decrease CPAP pressure. However, the study enrolled the patients with CPAP intolerance according to the subjective chief complaint, not the objective CPAP pressure data. In the present study, we studied the effects of combinations of CPAP and OA for patients with severe OSA who could not tolerate CPAP with high-pressure setting.