Hypoxaemia after aortic valve surgery under cardiopulmonary bypass.
D001021:Aortic Valve; D006350:Heart Valve Prosthesis; D006355:Heart-Lung Machine / Q000009:adverse effects*; D006801:Humans; D000860:Hypoxia / Q000209:etiology* / Q000601:surgery*; D011183:Postoperative Complications; D012129:Respiratory Function Tests