Validation of the S9 AutoSet APAP device for the apnea-hypopnea index detection in OSA patients

Introduction: Auto-adjusting positive airway pressure (APAP) is an accepted treatment for obstructive sleep apnea (OSA). Reporting of apnea-hypopnea index (AHI) from APAP devices might be useful for determining therapy compliance and monitoring therapy efficiency as well as the presence of residual sleep apnea. The detection algorithm of the S9 AutoSet APAP device (ResMed, Sydney, Australia) is able to discern between central and obstructive events. Methods: We performed a prospective study including 150 patients referred to our sleep laboratory due to suspected OSA. Serial patients underwent overnight polysomno…