The aim of this study was to compare home polysomnography (HoPSG) with laboratory polysomnography (LabPSG) in the diagnosis of sleep apnea syndrome (SAS). A total of 103 patients referred for investigation of SAS underwent two full polysomnographies, using the portable Minisomno device at home and the Respisomnographe in the laboratory (both devices manufactured by the same company). Twenty percent of home-studied device polysomnography (HoSD-PSG) recordings and 5% of LabPSG recordings were excluded from analysis either because of lost data or poor quality data. Sleep stage distribution and subjective quality of sleep were similar by both methods. Using LabPSG, the mean (+/- SD) RDI was 25.7 (+/- 30.6) versus 22.8 (+/- 31.5) using HoSD-PSG (p > 0.05). Absolute differences between the home and laboratory respiratory disturbance index (RDI) were less than 10 for 65% of patients. Discordant RDIs (i.e., differences greater than 10) were observed for 63% of individuals with severe SAS (RDI > 30) versus 22% of those with normal or moderate SAS (RDI

Psychiatric symptoms were found to be common in a group of 126 patients with chronic obstructive pulmonary disease who survived an intensive care unit stay and their relatives at intensive care unit discharge and 90 days later. Peritraumatic dissociation at intensive care unit discharge was found to independently predict posttraumatic stress disorder-related symptoms in this sample of patients and relatives.