RT Journal Article SR Electronic T1 Positive airway pressure devices in postoperative bariatric surgery: A randomized clinical trial JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP P2086 VO 44 IS Suppl 58 A1 Eli Maria Pazzianotto-Forti A1 Patrícia Brigatto A1 Jéssica Cristina Carbinatto A1 Carolina Moraes da Costa A1 Maria Imaculada Lima-Montebello A1 Irineu Rasera-Jr YR 2014 UL http://erj.ersjournals.com/content/44/Suppl_58/P2086.abstract AB Introduction:Positive pressure in the airways can contribute to the restoration of lung volumes and capacities in post operative. The aim of this study was to evaluate whether the application of bilevel positive airway pressure in the post-bariatric surgery may be more effective than when applied expiratory and inspiratory positive pressure separately in restoring lung volume and capacity, and thoracic mobility. Methods: Sixty morbidly obese, hospitalized for bariatric surgery, were evaluated. The pulmonary function and thoracic mobility were evaluated preoperatively and reevaluated on the 1st postoperative day. After evaluations the volunteers were randomized and allocated into groups, according to the following treatment: G EPAP, received expiratory positive airway pressure (n=20), G IPPB intermittent positive pressure breathing (n=20) and G BIPAP bilevel positive airway pressure (n=20). All the groups received these interventions, besides conventional physiotherapy, in 6 sets of 15 breaths or 30 minutes, twice a day in the immediate postoperative period and on the 1st postoperative day. Results: The results revealed significant reduction in spirometric variables postoperatively , regardless of the resource used, with no significant difference among the techniques, and preservation of thoracic mobility only in G BIPAP . Conclusions:It was concluded that the application of BIPAP may be considered more effective than when applied inspiratory and expiratory positive pressure separately in relation to the thoracic mobility preservation. However, it showed no efficacy or superiority in restoring lung volume and capacity of women in postoperative of bariatric surgery.FAPESP 2013/06334-8.