Effect of intensive telemonitoring on Continuous Positive Airways Pressure (CPAP) adherence

All patients will undergo CPAP acclimatisation delivered through Air Liquide Healthcare (ALH), but those in the telemonitoring arm will also have daily telemonitoring reviews in addition to ALH’s usual acclimatisation protocol. Once successfully acclimatized and compliant with a usage of equal or greater from 4hrs a night for a minimum of 70% of nights over a 4-week period, participants will then go on to either continue with intensive telemonitoring for the remainder of the year in addition to seeing their sleep physician, or will go back to their sleep physician to receive usual care. Both arms Participants arm use a commercial Philips DreamStation AutoCPAP machine nightly during sleep to treat OSA. As for the intensive telemonitoring arm, telemonitoring involves staff daily reviewing data (adherence, leak, and efficacy) with a customer service team (specifically addressed as "care team") who reach out patients essentially through phone calls (SMS when not available) to support the patient. When the care team is unable to solve the issue remotely through phone calls, the patient may be referred back to the CPAP consultants at the CPAP clinic, prior to escalation to the referring Prescriber. All interactions with the patients are tracked in 'minutes' as to integrate the cost of care in the review of the value based healthcare approach. Here below are the therapy data criteria leading to intervention by the care team: 1- Excessive mask leak: over 24 L per min on two consecutive days. 2- Low therapy usage: Average daily usage falls below 4-hours over seven consecutive days. 3- Inadequate treatment efficacy: An Apnea-Hypopnea Index or AHI over 8 events per hour on two consecutive days. 4- No usage: Zero recorded usage on two consecutive days. 5- Data transmission issues: No data transmitted from the device on two consecutive days.