Substudy on the Mechanistic Plausibility of the Clinical Benefits of Adaptive Servo-ventilation...
Heart FailureSleep Disorder1 moreThe purpose of this study is to assess changes in left ventricular performance using echocardiography as well as ventricular remodelling, changes in sleep and changes in mood, anxiety and cognitive functions occurring as a result of treatment of predominant central sleep apnoea by adaptive servoventilation (ASV) in chronic heart failure in addition to optimal medical therapy in chronic heart failure. This will be a substudy of the SERVE-HF study.
Benefit of Cheyne-Stokes Respiration Remote Monitoring in CPAP-treated Patients With Obstructive...
Obstructive Sleep ApneaObstructive sleep apnea (OSA) syndrome affects 40-60% of patients presenting with cardiovascular diseases. Cheyne-Stokes respiration is a type of central apnea characterised by the presence of at least three consecutive episodes of apnea and/or hypopnea separated by a crescendo-decrescendo variation of the breathing amplitude with a cycle length ≥ 40 seconds and a central apnea/hypopnea index ≥ 5/h, for at least two hours of recording. The association between heart failure and Cheynes-Stokes respiration is known and a recent study showed that Cheynes-Stokes respiration was associated with more severe heart failure. Moreover, a medical and medical/financial benefit of the early detection of cardiac decompensation has been reported. The purpose of this feasibility study is to investigate the benefit of Cheyne-Stokes respiration remote monitoring in CPAP-treated patients with OSA for the early detection of significant cardiac events (heart failure, rhythm disorder, diastolic dysfunction). To achieve this aim, a modified approach of CPAP remote monitoring is proposed based on the performance of the latest generation of positive pressure devices from ResMed, AirSense™ 10 Autoset™, which can detect and record the presence of Cheynes-Stokes respiration. For a period of 12 months, in addition to the usual daily remote monitoring (CPAP adherence, pressure settings, level of air leakages), the healthcare provider will systematically monitor the CSR data whenever the AHI increases significantly. Physicians will be alerted when a CSR occurs and they will see the patients within a short time for pulmology and cardiology consultations in order to screen the onset of significant cardiac event. After the 12-month period of modified remote monitoring, the telemedicine returns to the usual procedure. Patients who had at least one CSR occurrence during the first 12-month period will be followed up to 24 months to assess their medical condition.
Comparison of SomnaPatch With Polysomnography in Sleep Disordered Breathing
Obstructive Sleep ApneaCentral Sleep Apnea2 moreThe purpose of this study is to evaluate the accuracy of Somnarus diagnostic technology for diagnosis of sleep apnea in human subjects. This includes evaluation of Somnarus technology in Obstructive Sleep Apnea (OSA) and Central Sleep Apnea (CSA), including Cheyne - Stokes respiration (CSR).
Comparison of Breathing Event Detection by a Continuous Positive Airway Pressure Device to Clinical...
Sleep Apnea CentralCheyne-Stokes Respiration1 moreThe purpose of this study is to demonstrate diagnostic agreement and determine the accuracy of the continuous positive airway pressure (CPAP) device compared to simultaneous, attended clinical polysomnography (PSG) in identifying breathing events in participants previously diagnosed with complex sleep apnea (CompSAS), complex sleep apnea with Cheyne-Stokes respiration (CSR), or obstructive sleep apnea (OSA).
Leg Fluid Shift in Patients With Chronic Heart Failure and Obstructive or Central Sleep Apnea
Obstructive Sleep ApnoeaCentral Sleep Apnoea1 moreThis study aims to investigate the influence of a potential leg fluid shift (LFS) in patients with chronic heart failure (CHF) and obstructive sleep apnea (OSA) or central sleep apnea (CSA).
Effect of Heart Valve Replacement on Cheyne-Stokes Respiration
Cheyne-Stokes RespirationHeart Valve Disease1 moreSleep disordered breathing, especially central sleep apnea, is common in patients with chronic heart failure. Heart valve replacement could have some effect on central sleep apnea. The aim of the study is to investigate effect of heart valve replacement on Cheyne-Stokes respiration in patients with rheumatic heart disease.
Effect of Oxygen on Core Temperature
Cardiac DiseaseCheyne-Stokes RespirationStudy of the effect of oxygen on the frequency of central apnea, sleep and body temperature in patients with a cardiac disease
Cardiovascular Responses in Congestive Heart Failure With Cheyne- Stokes Respiration
Heart FailureCongestive1 moreThe purpose of the trial is to investigate the cardiovascular response to peripheral chemoreceptor stimulation in Congestive Heart Failure with Cheyne- Stokes Respiration
Monitoring of the Cerebral Tissue Oxygenation and Perfusion in the Adapting Climber During Sleep...
Environmental Sleep DisorderCheyne-Stokes Respiration1 moreOne of the major challenges in adapting to high altitudes is that with increasing altitude sleeping quality declines rapidly. Thus, the night sleep can only provide limited to none regeneration. It usually takes a prolonged stay at a constant altitude to adapt sufficiently to the altitude and to have a refreshing night sleep. 1975 Reit et. al showed in their EEG-recordings that the sleep architecture (the regular succession of the particular sleep phases) is disturbed by repeating arousals which occur due to an irregularity in the breathing rhythm. The purpose of this study is to create a better understanding of the underlying mechanisms that lead to failed acclimatization and AMS, due to sleep disturbance.
Effect of Adaptive Servoventilation on Cardiac Function in Chronic Heart Failure and Cheyne-Stokes...
Chronic Heart FailureCentral Sleep Apnea1 moreSleep disordered breathing is common in patients with chronic heart failure. Adaptive servoventilation is a novel method of treatment central sleep apnoea, especially associated with Cheyne-Stokes-respiration. The aim of the study is to investigate effect of adaptive servoventilation on cardiac function, exercise tolerance and quality of life in patients with chronic heart failure.