Table 2.

Postoperative data of patients who underwent uniportal video-assisted thoracoscopic segmentectomy using NIF imaging or inflation-deflation method.(POD: Post-Operation Day)

Perioperative outcomes	NIF-VATS(n = 92)	ID-VATS(n = 92)	P-value
Operation time (range) (min)	79 ± 29	96 ± 38	< 0.01
Blood loss (range) (ml)	46 ± 32	58 ± 36	0.38
Not clear intersegmental plane	8(8.6%)	33(35.8%)	< 0.01
Number of lymph node resection	3.2(1–6)	3.4(1–6)	0.85
Drainage duration (range) (days)	4.6 ± 2.9	5.9 ± 3.3	0.02
Hospital stays after surgery	5.6 ± 2.1	7.1 ± 3.2	0.01
Pathology			0.77
AAH	3	3
AIS	24	22
MIA	30	29
IAC	29	33
Other benign lesion	6	5
Postoperative early complications
Pulmonary infection	1(1.0%)	1(1.0%)	1
Prolonged air leak (> 5 days), n (%)	7(7.6%)	13(14.1%)	0.01
Postoperative hemoptysis	21(22.8%)	24(26.0%)	0.25
Irritable cough	19(20.6%)	25(23.5%)	0.35
Atelectasis	0(0.0%)	0(0.0%)	1
Chylothorax	0(0.0%)	0(0.0%)	1
Phrenic nerve palsy	0(0.0%)	0(0.0%)	1
Atrial fibrillation	5(5.4%)	5(5.4%)	1
Pleural effusion required drainage	6(6.5%)	8(8.7%)	0.19
Mortality	0	0	1
Postoperative wound pain
VAS score(POD1)	2.9(2–6)	3.0(2–7)	0.53
VAS score(POD3)	2.8(1–6)	2.7(1–7)	0.68
VAS score(POD7)	1.6(0–5)	1.7(0–5)	0.47
VAS score(POD30)	1.1(0–3)	1.1(0–3)	0.65
VAS score(POD60)	0.6(0–1)	0.7(0–2)	0.87