Nexus Compliance Study
Nexus Compliance Study
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 (S9), encompasses new features including
 an improved humidification system (heated tube and climate control), 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 (S9) CPAP,
 and will assess the usability of the Nexus (S9) 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 (S9) CPAP will
 improve compliance.

 Aims:

 1. To determine if compliance on the new Nexus (S9) CPAP is improved over the patient's
 usual CPAP

 2. To assess the usability of the Nexus (S9) CPAP.
Inclusion Criteria:

 -  Willingness to provide written informed consent

 -  Patients who are using a ResMed mask system

 -  Patients who are at least 18 years of age

 -  Patients who use a ResMed CPAP device

 Exclusion Criteria:

 -  Patients currently using Bilevel PAP

 -  Patients who are pregnant

 -  Patients who the researcher believes are unsuitable for inclusion because either:

 -  they do not comprehend English

 -  they are unable to provide written informed consent

 -  they are physically unable to comply with the protocol