Fig. 4
From: Patient–ventilator asynchrony in acute brain-injured patients: a prospective observational study
A significant difference in the prevalence of asynchrony was found among different ventilatory modes (p < 0.001, panel a). Percentage and 95% confidence interval are shown. The prevalence of asynchrony during pressure assist/control ventilation (PACV) was significantly lower than those during pressure support ventilation (PSV), volume assist/control ventilation (VACV), and pressure-preset synchronized intermittent mandatory ventilation plus pressure support (SIMV + PS). No significant difference was found among the PSV, VACV, and SIMV + PS (panel b). Individual data, median, and interquartile ranges are shown. A significant difference in asynchrony index was also found among different ventilatory modes (p < 0.001, panel b). Asynchrony indexes during PACV and PSV were significantly lower than those during VACV and SIMV + PS