Impact of warming blood transfusion and infusion toward cerebral oxygen metabolism and cognitive recovery in the perioperative period of elderly knee replacement

Table 2 Impacts of different transfusion temperatures on nasopharyngeal temperature (°C), CERO ₂ (%), SjVO ₂ (%) $(\bar{χ} \pm s, n = 40)$

Item	Group	T0	T1	T2	T3	T4	T5
Nasopharyngeal temperature	WBI	36.45 ± 0.21	36.02 ± 0.43	35.83 ± 0.47^ac	35.68 ± 0.58^ac	35.98 ± 0.47^a	36.09 ± 0.40^b
Nasopharyngeal temperature	Control	36.43 ± 0.21	35.98 ± 0.45	35.22 ± 0.38^c	35.08 ± 0.42^c	35.69 ± 0.32^c	35.90 ± 0.33
CERO₂	WBI	43.95 ± 12.89	38.60 ± 13.68	41.39 ± 11.60	48.32 ± 10.37^c	42.92 ± 10.08	42.69 ± 10.67
CERO₂	Control	45.97 ± 11.70	40.60 ± 16.17	46.04 ± 12.88	49.16 ± 14.53^c	46.13 ± 15.08	45.58 ± 14.52
SjvO₂	WBI	53.12 ± 8.67	62.62 ± 11.67	55.68 ± 8.25	48.05 ± 10.98^c	54.75 ± 6.12	54.80 ± 4.96
SjvO₂	Control	51.75 ± 8.14	60.02 ± 13.43	54.10 ± 6.23	46.85 ± 7.42^c	54.22 ± 7.39	53.98 ± 6.42

Compared with control group, ^aP < 0.01, ^bP < 0.05; compared with T1, ^cP < 0.01.

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