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Therapeutic value of lymph node dissection for esophageal squamous cell carcinoma after neoadjuvant chemotherapy
Author(s) -
Miyata Hiroshi,
Yamasaki Makoto,
Makino Tomoki,
Miyazaki Yasuhiro,
Takahashi Tsuyoshi,
Kurokawa Yukinori,
Nakajima Kiyokazu,
Takiguchi Shuji,
Mori Masaki,
Doki Yuichiro
Publication year - 2015
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.23965
Subject(s) - medicine , chemotherapy , esophageal squamous cell carcinoma , lymph node , neoadjuvant therapy , dissection (medical) , oncology , basal cell , carcinoma , radiology , cancer , breast cancer
Background and objectives The optimal extent of lymphadenectomy in patients with esophageal cancer is controversial. This study aimed to examine the therapeutic value of lymph node (LN) dissection for each LN station in patients with esophageal squamous cell carcinoma (ESCC) who receive neoadjuvant chemotherapy. Methods In 304 patients with ESCC who underwent neoadjuvant chemotherapy, Efficacy Index ( EI ) was calculated by multiplying the incidence of metastasis by the 3‐year survival rate of patients with positive nodes for each LN station. Results Prognosis was better in responders to neoadjuvant chemotherapy than non‐responders (3‐year survival; 66.3% vs 48.1%, P = 0.0035). The total number of resected LNs did not affect survival although the number of positive LNs did. The number of resected LNs did not correlate with the number of metastatic LNs. Cardiac LN and recurrent nerve LN showed high EI , irrespective of tumor location. EI for each LN station did not vary according to the response to neoadjuvant therapy. Conclusions The present study showed that therapeutic value of each LN was not affected by preoperative chemotherapy. The location of resected LNs rather than the total number of resected LNs may be more important to maximize the survival benefit of lymphadenectomy. J. Surg. Oncol. 2015 111:60–65 . © 2015 Wiley Periodicals, Inc.