Table 1 Perioperative Characteristics of Patients with and without Postoperative TNEs (Transient Neurological Events)

Age (y)

45.11 ± 9.96

43.14 ± 9.83

46.13 ± 9.89)

Male, n (%)

145(46.47)

63(59.43)

82(39.81)

Body mass index (kg/m2)

24.2 ± 2.85

24.24 ± 2.96

24.19 ± 2.81

Preoperative platelets(10^9/L)

190.13 ± 56.59

184.79 ± 54.09

192.88 ± 57.76

Preoperative Hemoglobin (g/dL)

129.32 ± 14.18

132.68 ± 14.57

127.59 ± 13.69

Preoperative NA+(mmol/L)

141.4 ± 1.94

141.47 ± 1.92

141.36 ± 1.95

Fasting blood glucose(mmol/L)

4.86 ± 0.88

4.73 ± 0.74

4.93 ± 0.94

Comorbidities, n (%)

Hypertension

112 (35.9)

33 (31.13)

79 (38.35)

Diabetes

19 (6.09)

4 (3.77)

15 (7.28)

Stroke

39 (12.5)

19 (17.92)

20 (9.71)

Blood types, n (%)

O

82 (26.28)

18 (16.98)

64 (31.07)

A

86 (27.56)

33 (31.13)

53 (25.73)

B

103 (33.01)

38 (35.85)

65 (31.55)

AB

41 (13.14)

17 (16.04)

24 (11.65)

Preoperative albumin(g/L)

40 ± 2.86

40.23 ± 2.99

39.88 ± 2.79

Onset symptoms, n (%)

Ischemic

77(24.68)

35(33.02)

42(20.39)

Hemorrhagic

50 (16.03)

14 (13.21)

36(17.48)

Others

185 (59.29)

57(53.77)

128 (62.13)

Intraoperative hypotension, n (%)

103(33.01)

45(42.45)

58(28.16)

Angiographic Suzuki Grade^#, n (%)

Grade III

73 (23.4)

31 (29.25)

42 (20.39)

Grade IV

64 (20.51)

26 (24.53)

38 (18.45)

Grade V

118 (37.82)

34 (32.08)

84 (40.78)

Grade VI

57 (18.27)

15 (14.15)

42 (20.39)

Duration of surgery(min)

341.34 ± 53.15

342.87 ± 53.66

340.55 ± 53

Duration of anesthesia(min)

387.43 ± 52.39

388.84 ± 50.69

386.7 ± 53.35

Infusion volume(ml)

4186.25 ± 1014.65

4191.98 ± 1090.68

4183.3 ± 975.98

Postoperative Hemoglobin(g/dL)

111.58 ± 14.26

114.44 ± 14.16

110.1 ± 14.11

Postoperative platelets(10^9/L)

185.04 ± 50.96

185.35 ± 51.09

184.87 ± 51.02

Postoperative albumin(g/L)

33.13 ± 3.1

33.48 ± 3.34

32.95 ± 2.97