Wavelet and pain rating index for inhalation anesthesia: A randomized controlled trial

Table 3 Systolic blood pressure and heart rate measured at 13 major time points during general anesthesia

Time point	Systolic blood pressure, mmHg			Heart rate, beats/min
	SBP group	WLi group	PRi group	SBP group	WLi group	PRi group
Baseline	125 ± 9	121 ± 8	122 ± 11	73 ± 9	71 ± 7	75 ± 9
Five min after tracheal intubation	109 ± 7	106 ± 4	107 ± 9	67 ± 10	66 ± 5	68 ± 10
Placement in prone position	110 ± 6	106 ± 4	109 ± 7	65 ± 10	65 ± 5	66 ± 7
Incision	112 ± 5	108 ± 5	112 ± 10	66 ± 7	64 ± 5	67 ± 8
Vertebral plate exposure	114 ± 6	115 ± 4	115 ± 12	67 ± 6	67 ± 6	68 ± 5
Placement of pedicle screws	118 ± 7	120 ± 8	118 ± 8	67 ± 8	69 ± 5	70 ± 5
Spinal canal decompression	132 ± 13	136 ± 9	134 ± 11	71 ± 97	73 ± 5	74 ± 5
Interbody fusion	126 ± 9	128 ± 10	127 ± 10	72 ± 12	72 ± 6	73 ± 6
Placement of the fixed link	121 ± 7	123 ± 9	123 ± 10	70 ± 12	71 ± 5	73 ± 6
Placement of drainage tube	119 ± 7	122 ± 7	122 ± 9	70 ± 11	71 ± 5	73 ± 6
Skin closure	126 ± 10	128 ± 9	128 ± 10	72 ± 11	73 ± 6	76 ± 6
Placement in recovery position	131 ± 7	130 ± 8	131 ± 10	76 ± 10	78 ± 4	80 ± 5
Tracheal extubation	132 ± 8	131 ± 9	131 ± 11	78 ± 10	79 ± 7	82 ± 6

Values are given as mean ± standard deviation. There were no significant differences in systolic blood pressure or heart rate among the three groups at any time point. PRi: Pain rating index; SBP: Systolic blood pressure; WLi: Wavelet index.