Obesity is one of the primary risk factors for OSA and nine in every ten patient that undergoes bariatric surgery also have Obstructive Sleep Apnea (OSA). According to a study of patients on the Bariatric surgery program at Case Medical school in Cleveland, OH, it was revealed that 19 % had been diagnosed with OSA prior to surgery (on further evaluation 56% met the clinical standard to be diagnosed with OSA) and 91% were found to have OSA based on mandatory sleep study testing of all the patients. The results suggest mandatory testing of all patients for OSA prior to bariatric surgery.
Am J Surg. 2007 Mar; 193 (3); 364-7; discussion 367