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

From: Tubeless uniportal thoracoscopic wedge resection with modified air leak test and chest tube drainage

Perioperative outcomes Tubeless group (n = 55) Drainage group (n = 55) P-value
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%)  
  1. POD post-operation day