Assessment of the Effect of PAP on Energy and Vitality in Mild OSA Patients: The Merge Study
Assessment of the Effect of PAP on Energy and Vitality in Mild OSA Patients: The Merge Study
The investigators wish to prospectively determine the response to CPAP in patients presenting
 with mild OSA. In many healthcare systems, patients with mild OSA (AHI 5-15) are not
 reimbursed for treatment. Although some evidence exists of the benefits of treating mild OSA
 when scoring as per AASM 2007 criteria, more evidence is needed. The investigators wish to
 add to this pool of knowledge and also increase the inclusion criteria to include the AASM
 2012 definition of mild OSA. By including the 2012 AASM definition of mild OSA, the
 investigators will add novel information to the field by assessing the benefits of treatment
 in both sub-groups of mild OSA.
Patients who visit their local sleep service for OSA investigation, and are found to have
 mild OSA (AHI ≤ 15) from an Apnealink polygraphy (PG) home sleep test, scored as per AASM
 2007 and/or AASM 2012, will be invited to take part in the study (pre-screening).

 At the study visit, informed consent, baseline demographics, and standardised questionnaires
 will be administered. Participants will then be randomised to a CPAP treatment group or
 control group.

 After 3 months, participants will be asked to repeat the standardised questionnaires, the
 trial will then be complete and they will return to routine clinical care.
Study Inclusion Criteria

 -  Aged ≥ 18 and ≤ 80

 -  Ability and willingness to provide written informed consent

 -  AHI ≤ 15 as per AASM 2007 scoring criteria

 -  Ability to tolerate a CPAP one hour long run in test

 Exclusion Criteria:

 -  The presence of unstable cardiac disease

 -  Inability to give fully informed consent

 -  Supplemental oxygen

 -  Secondary sleep pathology e.g. Periodic Limb Movement Syndrome, Narcolepsy, Circadian
 Disorder, obesity hypoventilation syndrome

 -  ESS ≥ 15, or concerns about sleepy driving from physician/ sleep lab staff

 -  BMI ≥ 40