Obstructive Sleep Apnea, Obesity, and the Development of Acute Respiratory Distress Syndrome

In this study, the authors evaluated weather obstructive sleep apnea could increase the risk of pulmonary complications and ARDS in a cohort of 5584 surgical patients from 22 different hospitals. All patients had at least one risk factor for ARDS. 252 of the patient had OSA and 66% of these patients were obese. After statistical analysis, the authors could not conclude that OSA was a risk factor for ARDS. However, BMI was independently associated with ARDS. Hence, it appears that obese patients, with at least one risk factors for ARDS, are at increase risk of developing this severe pulmonary complication post-operatively.