Transpulmonary Pressure in One Lung Ventilation and Open Pneumothorax

Effect 0ne Lung Ventilation and Open Pneumothorax on Respiratory Mechanics and Transpulmonary Pressure

Esophageal Pressure During one lung ventilation

Esophageal pressure comparison during positive pressure ventilation, one lung ventilation, lateral position and open pneumothorax

Inclusion Criteria:

• patients scheduled for VATS requiring one lung ventilation
• Body mass index below 35 kg/m^2

Exclusion Criteria:

• esophageal pathology preventing insertion of orogatric tube
• scoliosys