Fig. 4From: High-flow nasal cannula oxygen therapy decreases postextubation neuroventilatory drive and work of breathing in patients with chronic obstructive pulmonary diseaseTrend of the neuroventilatory drive, as expressed by the diaphragm electrical activity peak EAdiPEAK, and of work of breathing, as expressed by the inspiratory PDI pressure-time product per breath (PTPDI/b) and per minute (PTPDI/min). *Significant difference compared to the HFNC1 period (ANOVA with Bonferroni correction); §Significant difference compared to the HFNC2 period (ANOVA with Bonferroni correction). Conventional O2 period of conventional low flow oxygen therapy through a non-occlusive face mask, HFNC1 first period of high flow nasal cannula oxygen therapy, HFNC2 second period of high flow nasal cannula oxygen therapyBack to article page