Table 2 Postoperative data of patients who underwent non-intubated uni-port video-assisted thoracoscopic wedge resection with or without chest tube drainage

Operation time (range) (min)

59.3 ± 10.6

52.8 ± 11.4

0.16

SpO₂ (%)

96.1 ± 2.8

96.0 ± 2.6

0.97

EtCO₂ (mmHg)

44.9 ± 4.8

45.1 ± 5.3

0.82

Blood loss (range) (ml)

10.7 ± 6.9

10.2 ± 7.1

0.83

Preoperative CT-guided localization

50 (90.9%)

51 (92.7%)

0.92

Thoracic adhesion (%)

0.79

 Adhesion

3 (5.4%)

2 (3.6%)

 No adhesion

52 (94.6%)

53 (96.4%)

Operative method

0.11

 Wedge resection only

36 (65.4%)

33 (60.0%)

 Wedge resection with lymphadenectomy

19 (34.6%)

22 (40.0%)

Number of lymph node resection

2.1 ± 1.9

2.4 ± 2.1

0.85

Time to drink water (range) (min)

129 ± 22.5

133 ± 19.9

0.57

Drainage duration (range) (days)

N/A

1.9 ± 0.9

/

Hospital stays after surgery

1.5 ± 0.5

2.5 ± 0.8

 < 0.01

Pneumothorax

0.94

 No

40 (72.7%)

43 (78.2%)

 Pneumothorax (observation)

15 (27.3%)

12 (21.8%)

 Pneumothorax (intervention required)

0 (0.0%)

0 (0.0%)

Subcutaneous emphysema

0.81

 No

46 (83.6%)

47 (85.4%)

 Subcutaneous emphysema (observation)

9 (16.4%)

8 (14.6%)

 Subcutaneous emphysema (intervention required)

0 (0.0%)

0 (0.0%)

Pleural effusion required drainage

1 (1.8%)

1 (1.8%)

1.00

Prolonged tube drainage > 3 days

0 (0.0%)

0 (0.0%)

1.00

Irritable cough

6 (10.9%)

7 (12.7%)

0.86

Postoperative hemoptysis

21 (38.2%)

24 (43.6%)

0.52

Atrial fibrillation

0 (0.0%)

0 (0.0%)

1.00

Mortality

0 (0.0%)

0 (0.0%)

1.00

VAS score (POD1)

1.0 ± 0.7

3.0 ± 0.9

< 0.01

VAS score (POD3)

0.5 ± 0.5

1.1 ± 1.5

< 0.01

VAS score (POD7)

0.4 ± 0.4

0.7 ± 0.4

0.31

VAS score (POD30)

0.2 ± 0.3

0.4 ± 0.5

0.64

VAS score (POD60)

0.1 ± 0.2

0.1 ± 0.2

1.00

Wound healing

0.15

 Satisfied

54 (98.2%)

51 (92.7%)

 Unsatisfied

1 (1.8%)

4 (7.3%)

 Debridement required

0 (0%)

0 (0%)