Combined use of dexmedetomidine and nalbuphine in laparoscopic radical gastrectomy for gastric cancer

Table 2 Comparison of fluctuation of hemodynamic indexes between combined group and B group, mean ± SD

Index	Group	At the end of surgery	Before extubation	Immediately after extubation	5 min after extubation	10 min after extubation
MAP (mmHg)	A group (n = 80)	93.91 ± 4.40	98.25 ± 5.14	101.41 ± 4.47	98.65 ± 4.40	98.91 ± 5.74
	B group (n = 80)	88.50 ± 5.51	94.59 ± 5.66	105.58 ± 6.28	102.41 ± 5.75	99.50 ± 6.38
	t value	6.862	4.282	-4.839	-4.645	-0.615
	P value	0	0	0	0	0.540
HR (times/min)	A group (n = 80)	66.91 ± 5.88	68.50 ± 6.60	78.94 ± 7.40	75.19 ± 6.94	76.33 ± 7.00
	B group (n = 80)	68.13 ± 6.60	70.13 ± 7.17	84.10 ± 5.91	79.58 ± 7.47	75.00 ± 6.81
	t value	-1.234	-1.496	-4.873	-3.851	1.218
	P value	0.219	0.137	0	0	0.225

MAP: Mean arterial pressure; HR: Heart rate.