Table 2

- Analysis of vital signs.

Vital signs	Beginning	10^th min	30^th min	60^th min	Extubation	Postoperative
HR (beat/min)
High-flow	94 ± 13	96 ± 11	89 ± 13	84 ± 12	78 ± 19	84 ± 15
Low-flow	91 ± 17	86 ± 15	80 ± 15	84 ± 15	82 ± 14	79 ± 13
P-value	0.366	0.035	0.074	0.772	0.499	0.188
SAP (mm Hg)
High-flow	156 ± 21	136 ± 51	117 ± 17	124 ± 25	141 ± 36	139 ± 26
Low-flow	142 ± 21	125 ± 30	114 ± 23	119 ± 20	129 ± 21	130 ± 19
P-value	0.089	0.419	0.772	0.426	0.242	0.098
DAP (mm Hg)
High-flow	94 ± 18	73 ± 17	68 ± 15	80 ± 23	81 ± 21	81 ± 20
Low-flow	85 ± 17	74 ± 21	68 ± 18	74 ± 14	78 ± 17	76 ± 17
P-value	0.151	0.781	0.894	0.267	0.587	0.267
MAP (mm Hg)
High-flow	117 ± 19	92 ± 18	86 ± 13	93 ± 17	99 ± 24	102 ± 20
Low-flow	110 ± 16	92 ± 3	85 ± 20	92 ± 16	98 ± 18	98 ± 16
P-value	0.252		0.990	0.655	0.952	0.347
SPO2 (%)
High-flow	95 ± 3	97 ± 3	98 ± 2	96 ± 4	94 ± 3	96 ± 5
Low-flow	95 ± 4	97 ± 4	98 ± 2	98 ± 2	95 ± 3	97 ± 3
P-value	0.496	0.835	0.639	0.669	0.133	0.370
EtCO2 (mm Hg)
High-flow	36 ± 7	34 ± 4	34 ± 3	38 ± 4	36 ± 4	36 ± 5
Low-flow	35 ± 7	34 ± 4	37 ± 5	38 ± 5	35 ± 2	37 ± 5
P-value	0.838	0.904	0.173	0.913	0.405	0.673

SpO₂: peripheral oxygen saturation, HR: heart rate, SAP: full meaning, MAP: full meaning, EtCO2: end-tidal carbon dioxide