Clinical observation of laparoscopic cholecystectomy combined with endoscopic retrograde cholangiopancreatography or common bile duct lithotripsy

Table 4 Comparison of stress response index levels before and after surgery between the two groups (mean ± SD)

Groups	ACTH (ng/ml)	COR (ng/ml)	A (nmol/L)	NE (nmol/L)
Pre-operative
Research Group (n = 47)	14.78 ± 2.28	126.67 ± 11.59	1.39 ± 0.15	3.68 ± 0.65
Control group (n = 47)	15.36 ± 2.35	130.68 ± 12.01	1.42 ± 0.12	3.83 ± 0.72
t value	1.214	1.647	1.071	1.060
P value	0.228	0.103	0.287	0.292
1 d after surgery
Research Group (n = 47)	6.19 ± 2.05a	91.79 ± 10.44a	0.71 ± 0.24a	1.41 ± 0.51a
Control group (n = 47)	8.68 ± 3.88a	105.32 ± 11.65a	0.96 ± 0.37a	2.21 ± 0.73a
t value	3.890	5.929	3.886	6.159
P value	0.000	0.000	0.000	0.000

^aP < 0.05 vs this group preoperatively.

ACTH: Serum adrenocorticotrophic; COR: Cortisol; A: Epinephrine; NE: Norepinephrine.