Index of consciousness monitoring during general anesthesia may effectively enhance rehabilitation in elderly patients undergoing laparoscopic urological surgery: a randomized controlled clinical trial

Table 4 perioperative arterial blood gas analysis

	Group control (n = 60)	Group IoC (n = 60)	t-value	P-value	SE difference (95%Cl)
pH
Pre-operative	7.43 ± 0.03	7.43 ± 0.02	0.146	0.889^a	0.01(-0.01, 0.01)
Postoperative	7.32 ± 0.05	7.31 ± 0.05	0.241	0.814^a	0.01(-0.02, 0.02)
PaCO₂(mmHg)
Pre-operative	36.69 ± 3.44	37.80 ± 3.14	1.846	0.069^a	0.6(-2.29, 0.09)
Postoperative	45.96 ± 5.78	46.45 ± 5.78	0.425	0.677^a	1.19(-2.84, 1.85)
Blood glucose(mmol/L)
Pre-operative	6.93 ± 1.46	6.70 ± 1.41	0.872	0.385^a	0.26(-0.29, 0.75)
Postoperative	9.17 ± 2.04	7.11 ± 1.35	6.523	0.000^a	0.32(1.44, 2.69)
Blood lactic acid(mmol/L)
Pre-operative	1.52 ± 0.54	1.35 ± 0.65	1.599	0.113^a	0.11(-0.04, 0.39)
Postoperative	1.23 ± 0.41	1.24 ± 1.24	0.071	0.945^a	0.17(-0.35, 0.32)

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