Effects of small-dose remifentanil combined with index of consciousness monitoring on gastroscopic polypectomy: a prospective, randomized, single-blinded trial

Table 5 Comparison of MAP, HR, and SpO₂ in the three groups

Item	Time point	Group R2	Group R4	Group R6	P
MAP, mm Hg	T₀	89.7 ± 8.7	85.8 ± 9.5	87.2 ± 9.1	0.162
	T₁	76.4 ± 7.7^&&	73.1 ± 7.6^&&*	71.8 ± 6.9^&&**	0.018
	T₂	79.4 ± 9.5^&&	76.5 ± 10.8^&&	73.2 ± 6.5^&&**	0.010
	T₃	84.6 ± 13.4	80.6 ± 13.2	76.9 ± 7.2^&&**	0.014
	T₄	82.6 ± 8.8^&&	83.1 ± 9.5	80.7 ± 6.4^&&	0.392
HR, beats/min	T₀	80.0 ± 11.3	77.3 ± 10.0	78.7 ± 10.4	0.511
	T₁	71.1 ± 7.9^&&	69.3 ± 7.1^&&	72.6 ± 14.2	0.345
	T₂	72.8 ± 10.9^&	71.8 ± 12.0^&	75.4 ± 14.0	0.400
	T₃	75.3 ± 10.0	75.8 ± 14.5	78.2 ± 11.3	0.526
	T₄	76.7 ± 7.9	78.2 ± 10.8	76.1 ± 9.5	0.601
SpO₂, %	T₀	97.8 ± 1.1	97.9 ± 1.1	98.1 ± 1.1	0.476
	T₁	96.6 ± 2.8^&	95.5 ± 3.9^&&	93.8 ± 4.8^&&**	0.006
	T₂	96.2 ± 2.4^&&	95.7 ± 2.9^&&	95.0 ± 3.8^&&	0.200
	T₃	96.9 ± 2.4	96.5 ± 2.3^&&	96.4 ± 2.2^&&	0.658
	T₄	97.8 ± 1.2	98.0 ± 0.9	98.1 ± 0.8	0.482

Compared with group T₀, ^&P <0.05, ^&&P <0.01; compared with group R2, ^*P <0.05, ^**P <0.01
Abbreviations: HR heart rate, MAP mean arterial pressure, SpO₂ pulse oxygen saturation

ISSN: 1745-6215