Effect of acute normovolemic hemodilution on anesthetic effect, plasma concentration, and recovery quality in elderly patients undergoing spinal surgery

Table 3 Comparison of hemodynamic index between the two groups (n = 30, \(\stackrel{-}{x}\pm s\))

Item	Groups	T₁	T₂	T₃	T₆	T₉
MAP(mmHg)	ANH group	87 ± 10	76 ± 9	84 ± 12	114 ± 20^abc	109 ± 17^abc
MAP(mmHg)	Control group	84 ± 5	90 ± 10*	91 ± 15	122 ± 10^abc	114 ± 12^abc
HR(bpm)	ANH group	69 ± 12	66 ± 9	63 ± 10	75 ± 21	79 ± 14^b
HR(bpm)	Control group	63 ± 7	60 ± 7	59 ± 13	72 ± 15^bc	77 ± 13^abc
CO(L/min)	ANH group	4.5 ± 1.1	4.2 ± 1.4	5.0 ± 2.0	6.9 ± 2.2^abc	6.7 ± 1.9^abc
CO(L/min)	Control group	4.4 ± 1.8	4.6 ± 1.9	4.9 ± 2.3	6.0 ± 2.1^a	6.3 ± 2.0^ab
SVV(%)	ANH group	8.7 ± 1.6	11.7 ± 2.2	11.6 ± 4.5	7.9 ± 5.1^b	8.7 ± 3.1
SVV(%)	Control group	7.9 ± 2.7	6.7 ± 2.7*	7.5 ± 1.7*	3.9 ± 1.0*^abc	6.0 ± 2.0*^a

Compared with ANH group, *P < 0.05; Compared with T1, ^aP < 0.05; Compared with T₂, ^bP < 0.05; Compared with T₃, ^cP < 0.05

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