Continuous positive airway pressure delivery interfaces for obstructive sleep apnoea

Area of Science:

• Sleep Medicine
• Respiratory Therapy
• Medical Device Evaluation

Background:

• Continuous Positive Airway Pressure (CPAP) is a primary treatment for moderate to severe obstructive sleep apnoea (OSA).
• Patient compliance with CPAP therapy is often suboptimal.
• The selection of CPAP interfaces significantly impacts patient acceptance and long-term adherence.

Purpose of the Study:

• To systematically review and compare the efficacy of different CPAP delivery interfaces for treating OSA.
• To identify which CPAP interfaces offer better compliance and patient outcomes.

Main Methods:

• Conducted comprehensive literature searches across major databases (Cochrane, MEDLINE, EMBASE, CINAHL) up to January 2006.
• Included all randomized controlled trials that compared various CPAP delivery interfaces for OSA treatment.
• Two independent reviewers assessed study eligibility and extracted data, with attempts to obtain unpublished data.

Main Results:

• Four studies met the inclusion criteria, comparing nasal masks, oral masks, nasal pillows, and face masks.
• Nasal pillows showed significantly higher usage rates and patient satisfaction compared to nasal masks, with fewer adverse effects.
• A nasal mask demonstrated better compliance and reduced daytime sleepiness (Epworth Sleepiness Scale) compared to a face mask.

Conclusions:

• The optimal CPAP interface for OSA remains undetermined due to limited research.
• Nasal pillows and oral masks present viable alternatives for patients intolerant to conventional nasal masks.
• Face masks are not recommended as a first-line option but may be considered for specific patient issues; further research is needed.