Figure 5

Comparison with our previous study17 in which propofol anesthesia was used. A scatter plot of the MECK and ROCBP and the linear approximation of both the present (sevoflurane anesthesia) and previous (propofol anesthesia) studies are shown in (a). A downward rightward trend is observed, with similar slopes for the approximation lines. The intercept of sevoflurane is lower than that of propofol; however, the difference is not significant. The errors between the predicted and measured ROCBP values are shown in (b). The measured ROCBP values are those obtained in the present study. The predicted ROCBP values were calculated from the MECK values obtained in this study and the prediction equation obtained in a previous study. The fixed and proportional errors are minimal. MECK, minimum evoked current of the vascular stiffness value; ROCBP, rate of change in systolic blood pressure.