Skip to main content

Table 2 Postoperative outcomes of propensity score-unmatched and matched patients

From: Short-term outcomes of robot-assisted minimally invasive esophagectomy for esophageal cancer: a propensity score matched analysis

Postoperative outcomes

Before matching

After matching

RAMIE (n = 27)

VAMIE (n = 88)

P value

RAMIE (n = 27)

VAMIE (n = 27)

P value

Operation time (minutes)

349 ± 45

294 ± 52

< 0.001

349 ± 45

285 ± 66

< 0.001

Blood loss (mL)

118 ± 71

165 ± 107

0.030*

119 ± 72

158 ± 82

0.062*

Number of harvested LNs

20 ± 7

18 ± 6

0.214*

20 ± 7

19 ± 5

0.420*

Postoperative hospital stay (day)

13.8 ± 2.0

14.1 ± 4.2

0.548*

13.8 ± 2.0

12.8 ± 2.7

0.128

Overall complication (at least one) [n (%)]

10 (37.0)

37(42.0)

0.643

10 (37.0)

9 (33.3)

0.776

RLN injury [n (%)]

4 (14.8)

14 (15.9)

0.891

4 (14.8)

3 (11.1)

1.000†

Pulmonary complication [n (%)]

5 (18.5)

16 (18.2)

0.968

5 (18.5)

2 (7.4)

0.224

Arrhythmia [n (%)]

1 (3.7)

8 (9.1)

0.362

1 (3.7)

0

1.000†

Anastomotic leak [n (%)]

3 (11.1)

9 (10.2)

0.763

3 (11.1)

1 (3.7)

0.351†

Chylothorax [n (%)]

0

1 (1.1)

1.000†

0

1 (3.7)

1.000†

Bleeding [n (%)]

1 (3.7)

2 (2.3)

0.556†

1 (3.7)

1 (3.7)

1.000†

Delayed gastric emptying [n (%)]

1 (3.7)

7 (8.0)

0.448

1 (3.7)

0

1.000†

90-day mortality [n (%)]

0

2 (2.3)

1.000†

0

1 (3.7)

1.000†

  1. Data were presented as mean ± standard deviation for continuous variables or number (%) for categorical data
  2. *Mann-Whitney U test; †Fisher’s exact test
  3. RAMIE robot-assisted minimally invasive esophagectomy, VAMIE video-assisted minimally invasive esophagectomy, RLN recurrent laryngeal nerve