Fig. 6.
Graph representing the changes in mean arterial blood pressure after tracheal intubation with each device. Data are mean ± SD. * Significantly different compared with the Airtraq laryngoscope. † Significant difference compared with preintubation value. 30 s Pre-Ind = 30 s before induction of anesthesia; −30 s = 30 s before tracheal intubation; +1 min = 1 min after tracheal intubation; +2 min = 2 min after tracheal intubation; +3 min = 3 min after tracheal intubation; +5 min = 5 min after tracheal intubation.