Abstract
A review of anesthesia for airway foreign body was discussed in terms of pathophysiology, practical management and specific backup technology. We emphasized the genesis of hypoxic pulmonary vasoconstriction and reexpansion pulmonary edema due to dislodgement, as well as atelectasis due to occlusion by airway foreign bodies. Anesthesia required skilled and careful management to prevent unintentional hypoxia and maintain appropriate ventilation throughout the perioperative period. A percutaneous cardiopulmonary support system (PCPS) and intubating videolaryngoscope were introduced to facilitate and assist the dislodgement of airway foreign bodies.