Gradual desaturation: |
Ensure FiO2 = 1.0 |
Check DLT/BB placement with fiberoptic bronchoscopy |
Suction airway as needed |
Optimize cardiac output |
Recruit ventilated lung |
Apply PEEP 5 cm to ventilated lung (except COPD) |
Apply CPAP 5 to 10 cm non-ventilated lung (after recruitment) |
Intermittently ventilate both lungs |
Partial ventilation of operative lung: |
i) Selective lobar collapse |
ii) O2 insufflation to non-operative lobes |
Mechanical restriction of pulmonary blood flow to non-ventilated lung |