Fig. 2
From: Effects of awake caudal anesthesia on mean arterial blood pressure in very low birthweight infants
Time course of the median sevoflurane concentration (median ± interquartile range) calculated from patients in the group of combined general- and caudal anesthesia. The time point “0 min” indicates the start of the surgical procedure and is marked by the vertical red line. The dashed blue line indicates a sevoflurane concentration of 3.0 vol% corresponding to 1 MAC. The blue line represents the median sevoflurane concentration of 1.3 vol% during the maintenance phase of general anesthesia