Pulmonary function changes after sublobar resection in patients with peripheral non-subpleural nodules

BMC Surgery

Table 1 Clinical details of all patients

	Wedge resection	Segmentectomy	P value
n	46	42
Age (year)	46.9 ± 13.0	46.5 ± 12.2	0.724
Gender			0.583
Female	30	24
Male	16	18
Preoperative imaging diagnosis			0.426
Pure GGN	30	32
Mixed GGN	16	10
Target lung segment
S¹		6
S¹⁺²		14
S⁴⁺⁵		4
S⁶		10
S⁹⁺¹⁰		8
Intraoperative frozen section diagnosis
AHH	0	0
AIS	34	28
MIA	6	6
IAC	0	0
Benign lesion	6	8
Tumor diameter	12.4 ± 3.6	10.2 ± 4.6	0.095
Distance from nodule to pleura (Mm)	24.0 ± 5.4	28.1 ± 11.8	0.347
Smoking history
Yes	4	4
No	42	38
Duration of surgery (min)	70 ± 22	111 ± 52	0.0002***
Postoperative drainage (mL)	85 ± 45	287 ± 672	0.0123*
Air leak time (days)	1.7 ± 0.7	2.5 ± 1.7	0.062
Length of hospitalization (days)	2.7 ± 0.7	3.5 ± 1.7	0.051
Complication	0	0
Pathological type
AHH	0	2
AIS	34	26
MIA	6	6
IAC	0	0
Benign lesion	6	8
Treatment and hospitalization expenses (CNY)	35,148 ± 889	52,502 (38,276–57,772)	0.0002***

Wedge resection has a shorter duration of surgery, less postoperative drainage and less hospitalization cost than segmentectomy. No significant differences were detected between two groups in the air leak time and hospitalization time. No significant difference was found in the distance from nodule to pleura between the two groups, indicating that the depth of pulmonary nodules was similar between the two groups. The length of stapler trace on chest CT 3 months after operation was measured for each patient, traces of staplers on chest CT scan were relatively more obvious when patients who underwent segmental pneumonectomy came for review 3 months after operation
AHH atypical adenomatous hyperplasia, AIS adenocarcinoma in situ, MIA minimally invasive adenocarcinoma, IAC invasive adenocarcinoma cancer

ISSN: 1471-2482