Additional file 1: of Sigh maneuver to enhance assessment of fluid responsiveness during pressure support ventilation

Figures S1 and S2. Slope calculation of pulse pressure (PP) and stroke volume index (SVI) in responders and non-responders. Red triangles and green circles represent the mean values of PP the two populations (responders and non-responders, respectively) at each step of the protocol. Purple triangles and yellow circles represent the mean values of SVI the two populations (responders and non-responders, respectively) at each step of the protocol. For slope computations, please refer to Table 3. (ZIP 57 kb)

补充图S1与S2：有反应者与无反应者的脉压（pulse pressure, PP）及每搏输出量指数（stroke volume index, SVI）斜率计算。红色三角与绿色圆点分别代表两组受试者（有反应者与无反应者）在实验方案各步骤中的脉压均值；紫色三角与黄色圆点分别代表两组受试者在实验方案各步骤中的每搏输出量指数均值。关于斜率的计算方法，请参见表3。（压缩包，57 KB）