Detection of nocturnal desaturation and hypercapnia using accelerometer-integrated pulse oximetry: a prospective observational study

Among individuals with suspected sleep-related breathing disorders, accelerometer-integrated pulse oximetry may serve as a valuable tool to distinguish nocturnal desaturation episodes caused by exertion from those due to sleep-related hypoventilation. These findings suggest that accelerometer-integrated pulse oximetry could offer a feasible screening method for detecting sleep-related hypoventilation in outpatient settings lacking access to PtcCO₂ monitoring.