Fig 4.

Bar plots of the EEG trajectory (1–7) compared with (A) presence and absence of PACU delirium (PACU-D), (B) presence and absence of burst suppression, and (C) PACU-D and burst suppression relationship. (A) Patients with emergence trajectories 1, 2, and 6 have the lowest PACU-D (red) to no PACU-D (blue) ratio, and those with trajectories 3, 4, and 5 have the highest PACU-D to no PACU-D ratio. (B) Black indicates the number of patients with burst suppression during maintenance; white indicates the number of patients without burst suppression. (C) This plot is a combination of data presented in (A) and (B). Blue and red indicate the number of patients without PACU-D (blue) and with PACU-D (red). Individual patients who exhibited burst suppression during maintenance are indicated with black bars. No significant interaction between maintenance burst suppression and emergence trajectory (P=0.591) was observed.