Outcomes of Curative-Intent Surgery and Adjuvant Treatment for Pulmonary Large Cell Neuroendocrine Carcinoma.

Abstract:

BACKGROUND:Pulmonary large cell neuroendocrine carcinoma (LCNEC) is pathologically classified as non-small-cell lung cancer (NSCLC), but its clinical behavior is more aggressive than other types of NSCLC. Accordingly, the optimal treatment strategy for LCNEC, including the indication of adjuvant treatment, remains controversial. METHODS:A retrospective review of 139 patients who underwent curative-intent surgery for LCNEC was performed to investigate clinicopathologic features and survival outcomes and to evaluate whether adjuvant treatment affected survival outcomes. RESULTS:The mean patient age was 64 years (126 men, 90.6%). Operative procedures included 111 lobectomies (79.8%), 12 pneumonectomies (8.6%), and 2 sublobar resections. Pathologic stage was IA in 31 (22%), IB in 36 (26%), IIA in 34 (24%), IIB in 9 (6%), IIIA in 19 (14%), IIIB in 2 (1.4%), and IV in 4 patients (2.9%). Postoperatively, 50 patients (36%) received adjuvant treatment. The median follow-up duration was 33 months. The 5-year overall survival (OS) rate was 53%, and 5-year disease-free survival (DFS) rate was 39%. In patients with pathologic stage I, there was no significant difference in either OS or DFS according to the addition of adjuvant treatment. However, in patients with pathologic stage II or higher, patients who underwent adjuvant treatment showed significantly better OS (p = 0.023) and DFS (p = 0.038). CONCLUSIONS:Our findings showed that patients who underwent curative-intent surgery for LCNEC benefitted from the use of adjuvant treatment especially in pathologic stage II or higher.

journal_name

World J Surg

journal_title

World journal of surgery

authors

Kim KW,Kim HK,Kim J,Shim YM,Ahn MJ,Choi YL

doi

10.1007/s00268-017-3908-8

subject

Has Abstract

pub_date

2017-07-01 00:00:00

pages

1820-1827

issue

7

eissn

0364-2313

issn

1432-2323

pii

10.1007/s00268-017-3908-8

journal_volume

41

pub_type

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