Fig. 1From: Clinical utility of high-flow nasal cannula oxygen therapy for acute respiratory failure in patients with hematological diseaseComparison of vital signs before and after initiating high-flow nasal cannula (HFNC). Heart rate (a), oxygen saturation level (b), and respiratory rate (c) were significantly improved after initiating HFNC (p < 0.01 in all parameters)Back to article page