Robotic beds for the treatment of positional obstructive sleep apnoea – a randomised cross-over pilot trial

Abstract

Introduction: Positional interventions might be beneficial for patients with positional sleep apnoea (POSA). The aim was to assess the effect of~intelligent sleep apnoea~beds (ISABel) on OSA severity and sleep fragmentation in POSA.Method: Adults with POSA (apnoea-hypopnoea-index (AHI) >=10/h) were eligible. Following a baseline polysomnography, patients were randomly allocated to intervention nights ISABel1 and ISABel2. In case of an apnoea or hypopnoea, ISABel1 elevated the upper body by 50{\textdegree} and ISABel2 induced a one-side bed-inclination of 30{\textdegree} for 10 minutes. Sustained trunk elevations (ISABel1) and position change from supine to non-supine (ISABel2) were successful interventions.Results: Six men were included. Neither trunk elevation nor side inclination resulted in a significant reduction in AHI. However, only 13\% of side inclinations resulted in a successful change into non-supine position. Supine AHI tended to be lower in response to trunk elevations. Non-respiratory related arousals did not change. The time to the next respiratory event following bed movements was longer in ISABel1 than in ISABel2.Conclusion: Tilting beds might reduce supine AHI and prolong time to the next apnoea/hypopnoea.View this table:(*median{\textpm}interquartile range)FootnotesCite this article as Eur Respir J 2022; 60: Suppl. 66, 1177.This article was presented at the 2022 ERS International Congress, in session {\textquotedblleft}-{\textquotedblright}.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).