Fig. 1From: Asymmetrical high-flow nasal cannula performs similarly to standard interface in patients with acute hypoxemic post-extubation respiratory failure: a pilot studyCONSORT flow diagram for crossover trials. *Patients not meeting inclusion criteria: rescue noninvasive ventilation after extubation N = 5, chronic pulmonary disease N = 2, tracheostomy N = 2, mandatory nasogastric tube N = 5. Abbreviations: HFNC high flow nasal cannula, N number, EIT electrical impedance tomographyBack to article page