Changes in breath cycle sensing affect outcomes in upper airway stimulation in sleep apnea

Abstract

Abstract Background Upper Airway Stimulation (UAS) is a well‐established therapy option for obstructive sleep apnea (OSA). Aims There are no data on whether respiratory sensing contributes to successful UAS therapy. Materials & Methods After initial measurements of 3 implanted patients (M1), the sensing signal was inverted (M2) without changing other parameters. Two weeks later, the signal was converted back again, and the sensitivity of breathing cycle detection was turned to a very low state (M3). Results At M2 and M3, the apnea‐hypopnea index and oxygen desaturation index increased. Discussion Correct respiratory sensing is important for controlling OSA using UAS. Conclusions Therefore, implant centers should should optimize respiratory sensing placement and adjustment.

Keywords

• breathing cycle
• hypoglossal nerve stimulation
• PAP failure
• PAP intolerance
• respiratory sensing
• sleep apnea