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Table 2 Surgical outcomes, pathologic findings and recovery courses

From: Short-term and long-term outcomes of single-incision plus one-port laparoscopic surgery for colorectal cancer: a propensity-matched cohort study with conventional laparoscopic surgery

 

SILS + 1 (n = 258)

N (%) or mean (SD)

CLS (n = 516)

N (%) or mean (SD)

p

Operating time (min)

131.80 (43.40)

153.78 (57.39)

< 0.001

Estimated blood loss (ml)

25.45 (29.88)

51.11 (52.16)

0.01

Intraoperative blood transfusion

3 (1.2)

7 (1.4)

0.82

Additional trocar†

10 (3.8)

–

–

 Additional 1

7 (2.7)

–

–

 Additional 2

2 (0.7)

–

–

 Additional 3

1 (0.4)

–

–

Conversion to open surgery

1 (0.4)

11 (2.1)

0.06

Incision length (cm)

6.12 (1.12)

8.23 (2.33)

< 0.01

Tumor size (cm)

2.97 (1.32)

3.01 (1.21)

0.91

Differentiation

  

0.96

 Well

24 (9.3)

68 (13.2)

 

 Moderate

202 (78.3)

365 (70.7)

 

 Poor

36 (14.0)

83 (16.1)

 

No. of harvested lymph nodes

21.41 (11.12)

23.52 (10.71)

0.41

Proximal resection margin (cm)

9.72 (3.41)

10.40 (3.82)

0.26

Distal resection margin (cm)

6.31 (2.63)

6.62 (2.82)

0.68

Depth of invasion

  

0.95

 T1

23 (8.9)

42 (8.1)

 

 T2

35 (13.6)

76 (14.7)

 

 T3

54 (21.0)

122 (23.6)

 

 T4

135 (52.3)

276 (53.4)

 

Lymph node metastasis

  

0.97

 N0

160 (62.0)

338 (66.5)

 

 N1

74 (28.7)

113 (21.9)

 

 N2

24 (9.3)

65 (12.6)

 

Pathologic TNM stage‡

  

0.33

 I

60 (23.3)

118 (22.9)

 

 II

98 (38.0)

227 (44.0)

 

 III

100 (38.8)

171 (33.1)

 

Time to ambulation (day)

1.82 (0.9)

2.21 (1.2)

0.02

Time to first flatus (day)

1.77 (0.87)

2.61 (1.07)

< 0.01

Time to first defecation (day)

2.37 (1.32)

3.19 (1.16)

< 0.01

Time to liquid diet (day)

2.11 (0.79)

2.98 (1.29)

< 0.01

Time to soft diet (day)

3.80 (1.18)

4.69 (1.54)

< 0.01

VAS

   

 POD 1

2.72 (0.54)

2.86 (0.67)

0.48

 POD 2

2.50 (0.41)

2.53 (0.61)

0.85

 POD 3

2.01 (0.45)

2.28 (0.42)

0.04

 POD 4

1.65 (0.61)

1.89 (0.39)

0.02

 Discharge day

1.35 (0.49)

1.42 (0.51)

0.76

Postoperative hospital stay (day)

5.23 (2.2)

7.42 (3.6)

< 0.01

  1. †Including patients required one to three additional trocars during operation
  2. ‡According to 8th edition AJCC staging system
  3. Abbreviation: SILS + 1, single-incision plus one-port laparoscopic surgery; CLS, conventional laparoscopic surgery; VAS, visual analogue scale; POD, postoperative day; TNM, tumor-node-metastasis; SD, standard deviation
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BMC Gastroenterology

ISSN: 1471-230X

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