Comparison Between CPAP and HFJV During One-lung Ventilation in VATS

A recruitment maneuver will be applied to the ventilated lung. Immediately continuous positive airway pressure, at a pressure of 2-3cmH2O will applied to the non-ventilated lung for 20 minutes by the Mallinckrodt Bronchocath Disposable CPAP system (a recognised anesthetic breathing system design for CPAP).

A recruitment maneuver will be applied to the ventilated lung. Immediately, high-frequency jet ventilation, with a driving pressure of 0.5 atm and a respiratory rate of 100 cycles per minute will applied to the non-ventilated lung for 20 minutes using the Monsoone III Jet Ventilator (Acutronic, Hirzel, Switzerland). Monsoone III is a recognised ventilator design for HFJV.