General versus general anaesthesia combined with caudal block in laparoscopic-assisted Soave pull-through of Hirschsprung disease: a retrospective study

Table 2 Comparison of hemodynamic changes between the GA and GA + CA groups

Parameter	Time	Group GA (n = 20)	Group GA + CA (n = 27)	p
HR (mmHg), mean (± SD)	t₀	135.35 ± 13.94	132.44 ± 14.71	0.497
	t₁	150.00 ± 12.11	144.37 ± 13.58	0.149
	t₂	130.95 ± 18.64	118.18 ± 14.29	0.011
	t₃	133.35 ± 18.61	119.62 ± 13.55	0.005
SBP (mmHg), mean (± SD)	t₀	92.15 ± 8.08	91.19 ± 7.43	0.674
	t₁	80.30 ± 6.63	82.77 ± 5.83	0.181
	t₂	81.10 ± 5.15	83.14 ± 6.09	0.231
	t₃	80.65 ± 4.71	83.29 ± 6.00	0.110
DBP (mmHg), mean (± SD)	t₀	53.20 ± 5.00	52.59 ± 4.90	0.679
	t₁	51.60 ± 6.35	53.03 ± 6.49	0.453
	t₂	52.15 ± 7.01	50.33 ± 6.51	0.371
	t₃	49.65 ± 5.90	50.51 ± 6.48	0.640

SD; standard deviation; t₀, time at preinduction just before administration of propofol; t₁, at the moment of the surgical incision; t₂, at the time of transanal operation; t₃, 10 min after transanal operation

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