Comparison of pleural and esophageal pressure in supine and prone positions in a porcine model of acute respiratory distress syndrome
Nicolas Terzi, Sam Bayat, Norbert Noury, Emanuele Turbil, Walid Habre, Laurent Argaud, Martin Cour, Bruno Louis, Claude Guérin
Abstract
In a porcine model of acute respiratory distress syndrome, we found that static end-expiratory esophageal pressure did not change significantly in prone position compared with supine position at any positive end-expiratory pressure (PEEP) tested between 5 and 20 cmH 2 O. Prone position was associated with an increased ventral pleural pressure and reduced end-expiratory dorsal-to-ventral pleural pressure (Ppl) vertical gradient, likely due to a more even distribution of mechanical forces over the chest wall.
Topics & Concepts
Supine positionMedicineProne positionPositive end-expiratory pressureRespiratory distressRespiratory systemAnesthesiaAcute respiratory distressLungCardiologyAnatomyInternal medicineMechanical ventilationRespiratory Support and MechanismsMechanical Circulatory Support DevicesNeonatal Respiratory Health Research