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Table 3 Surgical characteristics in patients treated with ACP or RIVP + ACP during TARS

From: Retrograde inferior vena caval perfusion for total aortic arch replacement surgery: a randomized pilot study

Variable

ACP group

(n = 38)

RIVP + ACP group

(n = 38)

P value

Time from first symptom to surgery (h)

66 (60, 130)

42 (29, 126)

0.26

Time from admission to surgery (h)

41 (22, 56)

26 (18, 36)

0.42

Surgery type, n (%)

 Elephant trunk

34 (90)

35 (92)

1.00

 Aortic valve replacement

19 (50)

14 (37)

0.25

 Aortic valvuloplasty a

1 (3)

0 (0)

1.00

 Coronary artery bypass grafting a

2 (5)

1 (3)

1.00

Arterial cannulation site, n (%)a

  

0.80

 Femoral artery

25 (66)

27 (71)

 

 Descending aorta

12 (32)

11 (29)

 

 Subclavian artery

1 (3)

0 (0)

 

Variables during lower body arrest

Lowest temperature (°C)

 Nasopharyngeal

25.3 (24.5, 25.7)

27.8 (27.6, 28.1)

 < 0.001

 Rectal

27.2 (25.9, 27.8)

28.9 (28.6, 29.3)

 < 0.001

Antegrade cerebral perfusion

 Flow (mL/min/kg)

5.8 ± 1.3

7.2 ± 1.5

0.001

 Unilateral/bilateral

14/24

31/7

 < 0.001

 Left radial artery pressure (mmHg)

15 ± 8

14 ± 7

0.46

Retrograde inferior vena caval perfusion

 Flow (mL/min/kg)

11 ± 2

 Pressure (mmHg)

22 ± 3

Cardiopulmonary bypass times (min)

 From initiation to low body arrest

112 ± 33

120 ± 33

0.27

 The specific circulatory arrest

34.4 ± 9.2

34.5 ± 8.3

0.96

 From rewarming to weaning pump

151 ± 60

97 ± 23

 < 0.001

 Cross-clamping time

198 ± 55

189 ± 36

0.39

 Surgery duration (hour)

8.27 (6.75,9.75)

8.08 (7.08,9.00)

0.33

  1. Continuous data are expressed as mean ± SD or median (interquartile range); categorical data, as n (%)
  2. ACP antegrade cerebral perfusion, RIVP retrograde inferior vena caval perfusion, TARS total aortic replacement surgery
  3. aChi-squared test