Night-to-Night Repeatability of Supine-related Obstructive Sleep Apnea

• DOI: 10.1513/annalsats.201309-306oc
• Publication Date: 2014-04-10T15:06:32Z
• Authors: Simon A. Joosten; Fergal J. O’Donoghue; Peter D. Rochford; Maree Barnes; Kais Hamza; Thomas J. Churchward; Philip J. Berger; Garun S. Hamilton
• Keywords: Supine position; Repeatability; Sleep

Patients with obstructive sleep apnea (OSA) experience respiratory events greater frequency and severity while in the supine sleeping position. Postural modification devices (PMDs) prevent sleep, although there is a paucity of guidance to help clinicians decide when use PMDs for their patients. In order treat OSA effectively, patients must position consistently from night have low nonsupine hypopnea index (AHINS).To document repeatability traditionally defined predominant on consecutive polysomnography, determine whether consistency supine-predominant phenotype can be improved by altering definition it, AHINS repeatable night.We recruited 75 polysomnography two separate nights. were classified as having each basis traditional novel definitions, classification systems used compared agreement night.The highest level incorporates AHI (AHIS) ratio ≥4:1. addition, exists males, but poor female patients, regardless applied. An <10 events/hour highly night.Males an AHIS:AHINS ≥4:1 represent consistent night. This patient group likely benefit treatment PMD.