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Table 1 Characteristics of patients who underwent uni-port video-assisted thoracoscopic segmentectomy using near-infrared fluorescence imaging or inflation-deflation method(FEV1: percentile forced expiratory volume in 1 s; %FEV1: percentile forced expiratory volume in 1 s; FVC: forced vital capacity; %DLCO: percentile diffusing capacity of carbon monoxide)

From: Near-infrared intraoperative imaging with indocyanine green is beneficial in video-assisted thoracoscopic segmentectomy for patients with chronic lung diseases: a retrospective single-center propensity-score matched analysis

 

Before propensity score matching

After propensity score matching

NIF-VATS(n = 92)

ID-VATS(n = 149)

P-value

NIF-VATS(n = 92)

ID-VATS(n = 92)

P-value

Gender

  

0.54

  

0.66

 Male

43(46.7%)

72(48.3%)

 

43(46.7%)

45(48.9%)

 

 Female

49(53.3%)

77(51.7%)

 

49(53.3%)

47(51.1%)

 

Age

69.8 ± 5.2

71.3 ± 6.1

0.36

69.8 ± 5.2

70.9 ± 3.5

0.79

Smoking History (no. of smokers) (%)

47(51.1%)

73(49.0%)

0.43

47(51.1%)

46(50.0%)

0.55

FEV1(L)

1.69 ± 0.54

1.53 ± 0.67

0.42

1.69 ± 0.54

1.58 ± 0.41

0.73

%FEV1 (%)

82.1 ± 17.8

83.5 ± 18.6

0.72

82.1 ± 17.8

82.7 ± 16.9

0.81

FEV1/FVC (%)

63.8 ± 11.1

68.4 ± 10.1

0.44

63.8 ± 11.1

65.5 ± 9.2

0.64

%DLCO (%)

77.1 ± 18.3

78.6 ± 17.0

0.79

77.1 ± 18.3

77.9 ± 16.3

0.83

Body mass index (kg/m2) (median and range)

22.8 ± 2.7

23.6 ± 3.3

0.31

22.8 ± 2.7

23.2 ± 2.1

0.58

Comorbid Chronic lung disease

  

0.83

  

0.95

 COPD

90(97.8)

147(98.6%)

 

90(97.8)

90(97.8)

 

 IP

3(3.2%)

5(3.3%)

 

3(3.2%)

2(2.2%)

 

 CFPE

1(1.0%)

2(1.3%)

 

1(1.0%)

1(1.0%)

 

 IPF

1(1.0%)

3(1.5%)

 

1(1.0%)

1(1.0%)

 

Other Comorbidity

  

0.19

  

0.76

 Hypertension

8(8.6%)

19(12.7%)

 

8(8.6%)

9(9.7%)

 

 Diabetes mellitus

3(3.2%)

9(6.0%)

 

3(3.2%)

3(3.2%)

 

 coronary heart disease

1(1.1%)

4(2.7%)

 

1(1.1%)

1(1.1%)

 

 Other

4(4.3%)

6(4.0%)

 

3(3.2%)

2(2.2%)

 

Maximal lesion size(mm)

10.2 ± 4.3

11.5 ± 3.9

0.21

10.2 ± 4.3

10.9 ± 3.7

0.71

Lesion location

  

0.34

  

0.68

 Right upper lobe

25(27.2%)

40(26.8%)

 

25(27.2%)

23(25.0%)

 

 Right lower lobe

19(20.6%)

36(24.1%)

 

19(20.6%)

21(22.8%)

 

 Left upper lobe

26(28.3%)

38(25.5%)

 

26(28.3%)

25(27.1%)

 

 Left lower lobe

22(23.9%)

35(23.4%)

 

22(23.9%)

23(25.0%)

 

Type of segmentectomy

  

0.245

  

0.73

 Simple segmentectomy

30(32.6%)

58(38.9%)

 

30(32.6%)

32(34.7%)

 

 Complex segmentectomy

62(67.4%)

91(61.1%)

 

62(67.4%)

60(65.3%)