Current Knowledge/Study Rationale: In an obese population, weight loss is essential to treat obstructive sleep apnea (OSA) but is not always enough. For patients with moderate or severe OSA after significant weight loss, maintaining positive airway pressure (PAP) treatment is necessary to reduce morbidity-mortality. However, after bariatric surgery, few patients continue to followed up regarding OSA. Furthermore, few data are available on the predictive factors of OSA improvement after bariatric surgery. Recent studies have shown that a young age at diagnosis and a weight less than 100 kg after bariatric surgery were predictive factors for managing OSA in obese patients.
Study Impact: Our objectives were to determine the number of patients after bariatric surgery who no longer met French Ministry of Health criteria for utilizing PAP, and the predictive factors of OSA improvement.