0824 Can the interface utilized in continuous positive airway pressure therapy significantly alter the apnea-hypopnea index in certain patients with obstructive sleep apnea?

Abstract Introduction Multiple studies and analyses have demonstrated that use of an oronasal interface for delivery continuous positive airway pressure (CPAP) therapy can lead not only to higher requirements, but also a residual apnea hypopnea Index (AHI) in patients with obstructive sleep (OSA). Report Cases: We record 75-year-old man severe OSA, AHI 38, treated CPAP 16 cm water. On routine follow up, the was 2.9, he reported mouth-venting nasal mask stretched out chinstrap. He transitioned interface, on subsequent follow-up his 19.6. The decision made change back better-fitting chinstrap, which reduced 4. To verify recorded by device physiologic, patient later used while wearing home test (HSAT) utilizing peripheral arterial tonometry 2 nights. night 1.4 3.9 HSAT. following night, wore 31.6 18.5 Conclusion Although masks are commonly as CPAP, there is significant evidence systems more effective at controlling some individuals. Many show correspond increase associated requirements lower adherence compared interfaces. Imaging has shown greater retropalatal expansion when using device. Oronasal devices may push tongue posteriorly cause increased occlusion airway. consistent finding worsening OSA control setting led many consider be gold standard treating OSA. clinician should therefore mindful these considerations initiating or altering interface. Support (If Any)