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16
Table 1,
Table 1. Patients Characteristics After Propensity Score Matching
Segmentectomy
Lobectomy
(n = 67)
(n = 67)
Age,y
Gender
Male
69.5
69.4
44
41
Female
Smoking History (PY)
Diagnosis
Lung Cancer
Metastases
Malignant lymphoma
Benign diseases
Preoperative FEV1.0/FVC, %
Preoperative FEV1.0, L
Postoperative FEV1.0, L
Resected location
Right
S6
S8
S8+9
S10
S9+10
Left
S6
S8
S8+9
S10
23
28.6
26
23.6
57
73.7
2.23 ± 0.68
2.02 ± 0.63
64
73.7
2.31 ± 0.66
1.98 ± 0.61
34
22
33
21
46
Characteristics
S9+10
Operating time, min
Blood loss, mL
190 ± 58
47.9 ± 60.1
P value
0.928
0.594
0.373
0.049
0.995
0.478
0.704
0.035
21
180 ± 44
74.6 ± 87.2
0.250
0.041
17
Postoperative complications
Prolonged air leak *
Pneumonia
Empyema
Interstitial pneumonia
Atrial fibrillation
Cerebral infarction
8 (11.9)
9 (13.4)
0.797
*Prolonged air leak was defined as air leak lasting longer than 7 days or the use of
pleurodesis.
Value are n, mean ± SD, or n (%)
FEV1.0, forced expiratory volume in 1 second.
PY, pack-year.
18
Table 2,
Table 2. Comparison of patient characteristics and perioperative outcomes between COPD and
non-COPD patients who underwent segmentectomy.
Characteristics
Age,y
Gender
Male
Female
Smoking History (PY)
Postoperative complications
Prolonged air leak *
Pneumonia
Empyema
Atrial fibrillation
COPD
FEV1.0/FVC < 70%
(n= 19)
68.7
17
49.1
4 (21.1)
non-COPD
FEV1.0/FVC ≥ 70%
(n = 48)
71.7
27
21
20.4
4 (8.3)
P-value
0.228
0.009
0.002
0.152
*Prolonged air leak was
defined as air leak lasting longer
than 7 days or the use of
pleurodesis.
Value are n, mean ± SD, or n
(%)
FEV1.0, forced expiratory volume in 1 second.
FVC, forced vital capacity.
PY, pack-year.
19
Figure legends
Figure 1,
A representative case of thoracoscopic left S10 segmentecomy.
A, Computed tomography findings showing a solid nodule (yellow arrow) in the left S10c.
B, Three-dimensional vasculature image and visual guidance of virtual S10 segmentectomy
produced by the Synapse Vincent.
C, After ligation of the segmental artery, vein, and bronchus, the intersegmental plane was
identified using a systemic indocyanine green injection.
D, Operative view after S10 segmentectomy. The intersegmental plane was dissected to preserve
10
the intersegmental veins.
11
12
Figure 2,
13
The regional FEV1.0 of the residual lobe rescued by segmentectomy was measured from the
14
volumetric and spirometric parameters.
15
16
Figure 3,
17
Comparison of the percentage of postoperative/preoperative of FEV1.0 (A) between
18
segmentectomy and lobectomy in the lower lobe, and (B) simple, complex segmentectomy, and
19
lobectomy.
20
21
Figure 4,
20
The change in the left upper residual lobe volume before and after simple (S6) and complex (S10)
segmentectomy (A, C). There were no significant differences in predicted and actual residual lobe
volume (S6; p=0.191, complex; p=0.115) (B, D).
Figure 5,
Comparison of the preservation rate of the residual lobe between simple (S6) and complex
segmentectomies. The preservation rate was not significant different in simple and complex
segmentectomies (p=0.71).
10
21
Figure 1
22
Figure 2
23
Figure 3
24
Figure 4
25
Figure 5
26
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