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Obstructive sleep apnoea (OSA) is characterised by a partial or complete collapse of the upper airway during sleep. The treatment of choice for OSA is Continuous Positive Airway Pressure (CPAP). CPAP acts as a positive airway splint, delivering a fixed positive airway pressure to the upper airway via a tube and mask. Humidification is used during CPAP therapy to improve the comfort of the delivered air and to alleviate nasal dryness/congestion.
The latest design of a CPAP device, known as Nexus, encompasses new features including an improved humidification system, reduced noise, improved comfort of breathing, and a new user interface.
This study will assess whether compliance on CPAP therapy is improved on the Nexus CPAP, and will assess the usability of the Nexus CPAP
Obstructive Sleep Apnoea (OSA) is a condition characterised by the partial or complete collapse of the upper airway during sleep. OSA comprises a continuous spectrum of severity ranging from simple snoring and upper airway resistance through mild to severe symptomatic obstructive hypopnoea and apnoea. The prevalence of sleep disordered breathing in the adult population is 24% males and 9% for females. The prevalence of symptomatic OSA in the adult population has been estimated to be 4% in males and 2% in females. These patients demonstrate behavioural and neuropsychological consequences to varying degrees, including excessive daytime sleepiness, intellectual deterioration and depression. More serious consequences include arterial systemic hypertension, arterial pulmonary hypertension and heart disease.
The treatment of choice for OSA is Continuous Positive Airway Pressure (CPAP). CPAP acts as a positive airway splint, delivering a fixed positive airway pressure to the upper airway via a tube and mask. Humidification is used during CPAP therapy to improve comfort of the delivered air and alleviate nasal dryness/congestion.
Compliance with CPAP is a known issue which is affected by many things, including negative side effects and issues with the equipment. The most common complaints involve nasal dryness/congestion and noise from the machine.
The purpose of this study is to assess whether the improved humidification system, reduced noise, improved comfort of breathing and new user interface on the Nexus CPAP will improve compliance.
1. To determine if compliance on the new Nexus CPAP is improved over the patient's usual CPAP
2. To assess the usability of the Nexus CPAP.
Allocation: Non-Randomized, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment
Obstructive Sleep Apnea
Nexus CPAP, CPAP
ResMed Sleep Reseach Centre
New South Wales
Not yet recruiting
Published on BioPortfolio: 2014-08-27T03:18:01-0400
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A condition associated with multiple episodes of sleep apnea which are distinguished from obstructive sleep apnea (SLEEP APNEA, OBSTRUCTIVE) by the complete cessation of efforts to breathe. This disorder is associated with dysfunction of central nervous system centers that regulate respiration. This condition may be idiopathic (primary) or associated with lower brain stem lesions; chronic obstructive pulmonary disease (LUNG DISEASES, OBSTRUCTIVE); HEART FAILURE, CONGESTIVE; medication effect; and other conditions. Sleep maintenance is impaired, resulting in daytime hypersomnolence. Primary central sleep apnea is frequently associated with obstructive sleep apnea. When both forms are present the condition is referred to as mixed sleep apnea (see SLEEP APNEA SYNDROMES). (Adams et al., Principles of Neurology, 6th ed, p395; Neurol Clin 1996;14(3):611-28)
Disorders characterized by multiple cessations of respirations during sleep that induce partial arousals and interfere with the maintenance of sleep. Sleep apnea syndromes are divided into central (see SLEEP APNEA, CENTRAL), obstructive (see SLEEP APNEA, OBSTRUCTIVE), and mixed central-obstructive types.
A disorder characterized by recurrent apneas during sleep despite persistent respiratory efforts. It is due to upper airway obstruction. The respiratory pauses may induce HYPERCAPNIA or HYPOXIA. Cardiac arrhythmias and elevation of systemic and pulmonary arterial pressures may occur. Frequent partial arousals occur throughout sleep, resulting in relative SLEEP DEPRIVATION and daytime tiredness. Associated conditions include OBESITY; ACROMEGALY; MYXEDEMA; micrognathia; MYOTONIC DYSTROPHY; adenotonsilar dystrophy; and NEUROMUSCULAR DISEASES. (From Adams et al., Principles of Neurology, 6th ed, p395)
Dyssomnias (i.e., insomnias or hypersomnias) associated with dysfunction of internal sleep mechanisms or secondary to a sleep-related medical disorder (e.g., sleep apnea, post-traumatic sleep disorders, etc.). (From Thorpy, Sleep Disorders Medicine, 1994, p187)
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