300,000+ clinical trials. Find the right one.

71 active trials for Sleep Apnea

Validation of a Contactless Vital Signs Measurement Sensor

The primary aim of this study is to validate the performance of Sleepiz One+ for the measurement of vital physiological parameters in adult population, against a laboratory-based polysomnography. Additionally, the investigators will evaluate Sleepiz One+ ability to identify patients with a high risk of suffering from a sleep-related breathing disorder based on apnea-hypopnea index estimation. Participants will undergo measurement with Sleepiz One+ and a polysomnography device while resting in bed for 20 min as well as during sleep for the duration of the following night.

Start: September 2020

Turbinate Cauterization in Pediatric Patients With Nasal Obstruction

patients will be placed in 2 groups, with or without turbinate cautery ( a surgical method to reduce the size of the skin covered bones in the nose), at the time of adenoidectomy and tonsillectomy. It will compare the amount of nasal congestion for each group with the idea that it will be less if treated with turbinate cauterization. Assessments from baseline to 6 months post procedure will be compared between the two groups.

Start: August 2012

Prevention of Sleep Apnea After General Anaesthesia With a MAD

Sleep apneic episodes increase after general anaesthesia up to the third postoperative night. A mandibular advancement device, called MAD, is a small device that is inserted in the patient's mouth during the night and allows the advancement of the mandible, preventing sleep apneic episodes. The objective of this randomized controlled trial is to determine whether a MAD reduces the impact of general anaesthesia on the increase of the sleep apneic episodes in the postoperative period. All patients will have their sleep-related respiratory data measured using a portable respiratory polygraphy recorder (ResMed Embletta® system). This portable recorder allows a non-invasive recording of nasal airflow through a nasal cannula, oxygen saturation (SpO2) via finger pulse oximetry, respiratory efforts through thoracic and abdominal belts, and body position.

Start: February 2021

A Validation Study of the NightOwl Home Sleep Apnea Test

The objective of this study is to evaluate the performance of a miniaturized sleep apnea test, called NightOwl. The system consists of a sensor placed on the fingertip and a cloud-based analytics software. The sensor acquires accelerometer and photoplethysmographic data. The software derives actigraphy from the former, and blood oxygen saturation and peripheral arterial tone (PAT), among other features, from the latter. In order to assess NightOwl's performance, the investigators will compare the apnea hypopnea index (AHI) estimate, defined as the number of respiratory events per hour of sleep, derived by the NightOwl system, to the apnea-hypopnea index (AHI) obtained from manual analysis of the polysomnography (PSG), which is the gold standard for sleep apnea diagnosis. This study will be performed in a sleep lab environment.

Start: March 2021

Validation of a New Algorithm for Screening Sleep Apnea Syndrome From Electrocardiogram

Sleep apnea syndrome is a prevalent disease, recognized as an independant risk factor for cardiovascular diseases The gold standard for the diagnosis of sleep apnea is the polysomnography. But polysomnography is time-consuming and very expensive. We developed an algorithm for screening sleep apnea from electrocardiographic signal. This would lead to the simplification of screening sleep apnea by using a two-channels recording device and computerizing the scoring of respiratory events. The validation of the algorithm will consist in comparing the number of apnea and hypopnea per hour of sleep (AHI) detected by the algorithm from the electrocardiographic signal recorded during a standard polysomnography in the Center for Sleep Medicine and Research in Nancy, with the AHI resulted from the standard interpretation of the same polysomnography by experts in sleep scoring (gold standard).

Start: March 2021

Comparison Between Natural Sleep Endoscopy and Drug-induced Sleep Endoscopy in Patients With Obstructive Sleep Apnea

Drug-induced sleep endoscopy (DISE) is the most used technique for identifying the obstruction site associated with obstructive sleep apnea (OSA). This is due to the fact that it allows many patients to be examined in a daytime setting. This procedure uses sedative drugs to mimic natural sleep. However, associations with the site of upper airway (UA) collapse during natural sleep remain unclear. The aim of this explorative study is to identify UA collapse in patients with OSA using endoscopic techniques as well as flow shape characteristics and sound analyses during natural and drug-induced sleep. Furthermore, we want to optimize the measurement set-up of natural sleep endoscopy (NSE).

Start: February 2021

Long-term Effect of the Physical Activity Promotion on the Clinical Characteristics and Vascular Risk in Patients With Mild-moderate Obstructive Sleep Apnea

Main objective: To assess the effect of the daily physical activity promotion with a pedometer during 12 months on the apnea-hypopnea index (AHI) in patients with mild to moderate obstructive sleep apnea (OSA). Study patients. Subjects 30-80 years old with diagnosis of mild-moderate OSA (AHI: 5-30 and predominance of obstructive events [>80%)]. Design. Randomized, parallel and open-label clinical trial, controlled with conventional treatment. Intervention: Patients will be randomized (1:1) to control group [treatment and follow-up according to conventional clinical practice] or intervention group [in addition to conventional treatment and follow-up, the patients will receive a pedometer to measure the number of steps walked daily. Based on the cumulative step count for each day and the mean value since the last visit, patients will receive a task to increase their steps per day by the next appointment according to the next protocol (<6000 steps/day: increase by 3000 steps/day; 6000 - 10000 steps/day: reach 10000 steps/day; and > 10000 steps/day: maintain or increase steps). Measurements. At , 12, 24 and 52 weeks of randomization, the following determinations will be made: anthropometric characteristics; clinical evaluation (smoking history, sleep symptoms, comorbidities, current medication); questionnaires (ESS, FOSQ, SF-12, EuroQoL and iPAZ); heart rate and blood pressure; analytical determinations (HbA1c, HOMA index, cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides, homocysteine, NT-proBNP and hsCRP); plasmatic biomarkers (8-isoprostane, IL1beta, IL6, IL8 and TNFalpha); and evaluation of daily physical activity using an accelerometer.

Start: April 2017

Validation of Software for Assessment of Sleep Apnea From Data Acquired by a Wearable Smartwatch

This clinical validation study aims to evaluate the utility of Fitbit's Sleep Apnea Alert software for minimally invasive monitoring of sleep apnea events to alert users of their risk of sleep apnea. The Sleep Apnea Alert software analyses data from a Fitbit commercially available wrist photoplethysmogram (PPG) device. The Sleep Apnea Alert software is an investigational software as medical device (SaMD) and is designed to retrospectively process data and flag users who have physiological signals consistent with an apnea-hypopnea index (AHI) of 15 or greater. This clinical validation study will be used to validate Fitbit's PPG-based sleep apnea algorithm. The outputs of the Fitbit Sleep Apnea Alert software will not be available to study participants, as the scope of this study is to gather validation data only and does not include testing product usability components.

Start: November 2018

Sleep Aging and Risk for Alzheimer's 2.0

Age-related sleep changes and common sleep disorders like obstructive sleep apnea (OSA) may increase amyloid burden and represent risk factors for cognitive decline in the elderly. We will directly interrogate the brain using a 2-night nocturnal polysomnography (NPSG) and amyloid deposition using C-PiB PET/MR both at baseline and at the 24-month follow-up. This study has the potential to identify the mechanisms by which age-related sleep changes contribute to AD neurodegeneration in cognitively normal elderly, the group that could profit the most from sleep preventive strategies.

Start: May 2018

Mechanisms of Pharyngeal Collapse in Sleep Apnea, Study B

In obstructive sleep apnea (OSA), the upper airway recurrently closes during sleep. The mechanisms that lead to airway closure are not completely understood. Some studies have shown that there is progressive narrowing of the pharyngeal airway across breaths during expiration (Progressive Expiratory Narrowing, PEN) preceding an obstructive apnea. The cause of PEN is unknown. The investigators will test if lung volumes and low respiratory drive play a role in PEN.

Start: December 2012

Contactless Detection of Sleep Apnea

In this study the inestigators aim to validate the performance of Sleepiz One+ for sleep apnea detection during routine diagnostic sleep studies. Patients who are prescribed polysomnography study will be asked to participate and undergo a simultaneous sleep recording with radar sensor-based device.

Start: December 2020

Clinical Evaluation of a Paediatric Sleep Diagnosis Technology

The objective of this project is to gather research data and subsequently evaluate algorithms to demonstrate clinical efficacy of a novel sleep apnoea detection system in the paediatric population. The Study will involve patients who will have been referred for diagnosis of sleep apnoea, and the ultimate aim will be to compare the output of a novel apnoea detection system against in -clinic polysomnography.

Start: February 2020

Advancing Understanding of Transportation Options

This Stage II randomized, controlled, longitudinal trial seeks to assess the acceptability, feasibility, and effects of a driving decision aid use among geriatric patients and providers. This multi-site trial will (1) test the driving decision aid (DDA) in improving decision making and quality (knowledge, decision conflict, values concordance and behavior intent); and (2) determine its effects on specific subpopulations of older drivers (stratified for cognitive function, decisional capacity, and attitudinally readiness for a mobility transition). The overarching hypotheses are that the DDA will help older adults make high-quality decisions, which will mitigate the negative psychosocial impacts of driving reduction, and that optimal DDA use will target certain populations and settings.

Start: December 2019

Sleep Apnea in Elderly

Sleep-disordered breathing (SDB or sleep apnea) is very common among elderly Veterans and leads to increased morbidity and mortality in this population. The proposal aims to identity whether oxygen, finasteride and acetazolamide can be effective in reducing unstable breathing and eliminating sleep apnea in the elderly via different mechanisms. This proposal will enhance the investigators' understanding of the pathways that contribute to the development of sleep apnea in the elderly. The investigators expect that the results obtained from this study will positively impact the health of Veterans by identifying new treatment modalities for sleep apnea. A cumulative effect of the investigators' research will fulfill the long-term goal of improving the quality of life of elderly Veterans suffering from sleep apnea and its potential life-threatening complications.

Start: July 2015

Acromegaly - Before and After Treatment

The aim of the study is to investigate sleep apnea, circulation and metabolism in acromegaly before and after surgery and/or medical treatment.

Start: October 2017

Diabetic Macular Edema - Obstructive Sleep Apnea Relationship Study

The purpose of this study is to evaluate the relationship between DME and obstructive sleep apnea (OSA). OSA impacts millions of North Americans, many of whom are undiagnosed. The investigators aim to evaluate if a relationship exists between the two diseases, whether or not the severity of OSA impacts the severity of DME, and whether treating OSA results in better treatment outcomes for DME. The study will involve the standard of care provided for both DME (involving anti-VEGF injections) and OSA (involving continuous positive airway pressure [CPAP] machine).Approximately 150 subjects are expected to be enrolled in this study. In summary: Question 1: Is there a correlation between DME and OSA? Question 2: Is there a relationship between the severity of DME (CRT and vision) and OSA (AHI index)? Question 3: Does treating OSA result in improving DME metrics, and does it neutralize the outcomes at 1 year compared to OSA negatives.

Start: January 2018

Effects of AI Assisted Follow-up Strategy on Secondary Prevention in CABG Patients

The present study is trying to find out whether artificial intelligence assisted follow-up strategy will improve secondary prevention in CABG patients. In addition, we will test whether rural patients may have more benefits under the new follow-up strategy based on the artificial intelligence device compared with urban patients.

Start: January 2021

Prevention Of Delirium in Elderly With Obstructive Sleep Apnea (PODESA)

Delirium is a common complication in elderly patients following surgery. Patients who develop delirium after surgery are at increased risk for serious complications, and even death.This multi-centre randomized controlled trial will enroll elderly patients scheduled for elective hip/knee replacement surgery.The objective of this trial is to identify obstructive sleep apnea using ApneaLink Air and to determine whether auto-titrating CPAP treatment of obstructive sleep apnea will decrease the incidence of post-operative delirium in elderly patients undergoing elective hip and knee replacement surgery.

Start: March 2016

Combination Pharmacological Interventions for Multiple Mechanisms of Obstructive Sleep Apnea

Currently, there is no pharmacological intervention for OSA that targets multiple pathophysiological deficits in combination. Here the investigators study the effect on sleep apnea severity of combinations of pharmacological agents that stimulate the pharyngeal muscles, stabilize ventilatory control, and increase the arousal threshold.

Start: January 2019

CPAP, Nutrition & Exercise Against Sleep Apnea

This study evaluates the addition of a comprehensive lifestyle program including dietary management and exercise to continuous positive airway pressure (CPAP) therapy in overweighted adults with obstructive sleep apnea. Half of the participants will receive CPAP therapy while the other half will have diet consultations, nordic walking sessions and CPAP.

Start: August 2019