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Table 3 Surgery related factors for AL

From: Risk and early predictive factors of anastomotic leakage in laparoscopic low anterior resection for rectal cancer

Surgery related factors

Leakage (−), n = 88

Leakage (+), n = 13

p value

Intraoperative

 Operation time (min), median [range]

233 [151~438]

263 [157~376]

0.32

 Blood loss (ml), median [range]

10 [0~180]

15 [0~1115]

0.15

 Lymph node dissection, n = No. (%)

  D2

18 (20.5)

1 (7.7)

0.45

  D3

70 (79.5)

12 (92.3)

 LCA preserving, n = No. (%)

  Yes

36 (40.9)

4 (30.8)

0.56

  No

52 (59.1)

9 (69.2)

 Mobilization of splenic flexure, n = No. (%)

  Yes

3 (3.4)

1 (7.7)

0.43

  No

85 (96.6)

12 (92.3)

 Number of linear staple, n = No. (%)

  1

66 (75.0)

6 (46.1)

0.046

  2

22 (25.0)

7 (53.9)

 Size of circular staple (mm), n = No. (%)

  25

7 (8.1)

1 (7.7)

1.00

  29

80 (91.9)

12 (92.3)

 Trans anal drain, n = No. (%)

  Yes

51 (58.0)

8 (61.5)

1.00

  No

37 (42.0)

5 (38.5)

 Qualified surgeon, n = No. (%)

  Yes

65 (73.9)

11 (84.6)

0.51

  No

23 (26.1)

2 (15.4)

Postoperative

 WBC (/μl) median [range]

  POD1

8280 [2790~13,510]

8340 [5640~12,440]

0.069

  POD3

6975 [3220~15,450]

8100 [3390~17,570]

0.15

 CRP (mg/dl) median [range]

  POD1

4.95 [1.61~12.7]

4.43 [2.35~14.7]

0.75

  POD3

6.86 [0.37~23.4]

8.77 [1.24~34.6]

0.036

 Fever ( 38 °C), n = No. (%)

  POD1

40 (45.5)

9 (69.2)

0.14

  POD3

5 (5.7)

7 (53.8)

< 0.0001

 Tachycardia ( 100 bpm), n = No. (%)

  POD1

6 (6.8)

4 (30.8)

0.023

  POD3

7 (8.0)

1 (8.0)

1.00

 Watery stool, n = No. (%)

  Yes

34 [39.0]

6 [50.0]

0.54

  No

53 [61.0]

6 [50.0]

 First defecation day (POD), median [range]

4 [1~13]

2 [0~7]

0.022

  1. AL anastomotic leakage, LCA left colic artery, WBC white blood cell, CRP C-reactive protein, POD postoperative day
  2. p < 0.05