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Segmentectomy Versus Lobectomy for Radiologically Pure Solid Clinical T1a-bN0M0 Lung Cancer.

Abstract：

BACKGROUND:Segmentectomy for radiologically pure solid tumors is still controversial because these tumors are more aggressive in malignancy than those with ground-glass opacity. This study aimed to determine the feasibility of intentional segmentectomy for pure solid small-sized lung cancer. METHODS:We retrospectively analyzed 96 radiologically pure solid tumors in clinical T1a-bN0M0 lung cancer. Patients whose tumor was located at a central region or right middle lobe were excluded. Forty-four patients who underwent lobectomy were compared with 52 those who underwent segmentectomy. Segmentectomy got converted to lobectomy if lymph node metastases or inadequate surgical margin was confirmed. Factors affecting survival were assessed using Cox regression. Propensity score stratification analysis was also performed. RESULTS:Eight patients (8%) were identified as a histological type other than adenocarcinoma or squamous cell carcinoma. Moreover, 14 patients (14%) displayed lymph node metastasis. Among those who underwent segmentectomy, nine patients (16%) were converted to lobectomy due to lymph node metastasis or inadequate surgical margin. The 3-year recurrence-free survival rates were 84.1 and 82.2% in patients who underwent segmentectomy and lobectomy, respectively (P = 0.745). In addition, the recurrence-free survival was not statistically significant between segmentectomy and lobectomy, as determined via multivariable Cox regression analysis (hazard ratio 1.11; 95% confidence interval 0.40-3.06), even after propensity score stratification (hazard ratio 1.17; 95% confidence interval 0.38-3.65). CONCLUSIONS:Segmentectomy with intraoperative assessment of lymph node metastasis and adequate surgical margin may be a feasible surgical procedure for pure solid tumors in clinical T1a-bN0M0 lung cancer.

journal_name

World J Surg

journal_title

World journal of surgery

authors

Tsubokawa N,Tsutani Y,Miyata Y,Handa Y,Misumi K,Hanaki H,Hida E,Okada M

doi

10.1007/s00268-018-4514-0

subject

Has Abstract

pub_date

2018-08-01 00:00:00

pages

2493-2501

issue

8

eissn

0364-2313

issn

1432-2323

pii

10.1007/s00268-018-4514-0

journal_volume

42

pub_type

杂志文章

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