Does Lymphadenectomy with at Least 15 Perigastric Lymph Nodes Retrieval Promise an Improved Survival for Gastric Cancer: A Retrospective Cohort Study in Southern China

Ye, Jinning; Ren, Yufeng; Dai, Weigang; Chen, Jianhui; Cai, Shirong; Tan, Min; He, Yulong; Yuan, Yujie

doi:10.7150/jca.28413



International Journal of Biological Sciences

International Journal of Medical Sciences

Theranostics

Journal of Genomics

Nanotheranostics

Global reach, higher impact

Full Text | PDF

J Cancer 2019; 10(6):1444-1452. doi:10.7150/jca.28413 This issue Cite

Research Paper

Does Lymphadenectomy with at Least 15 Perigastric Lymph Nodes Retrieval Promise an Improved Survival for Gastric Cancer: A Retrospective Cohort Study in Southern China

Jinning Ye^1,3*, Yufeng Ren^2*, Weigang Dai^1,3*, Jianhui Chen^1,3, Shirong Cai^1,3, Min Tan^1,3, Yulong He^1,3,4✉, Yujie Yuan^1,3✉

1. Center of Gastrointestinal Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Prov., P.R. China
2. Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Prov., P.R. China
3. Center of Gastric cancer, Sun Yat-Sen University, Guangzhou, 510080, Guangdong Prov., P.R. China
4. Center of Digestive Medicine, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518106, Guangdong Prov., P.R. China
*These authors contributed equally to this study.

Citation:

Ye J, Ren Y, Dai W, Chen J, Cai S, Tan M, He Y, Yuan Y. Does Lymphadenectomy with at Least 15 Perigastric Lymph Nodes Retrieval Promise an Improved Survival for Gastric Cancer: A Retrospective Cohort Study in Southern China. J Cancer 2019; 10(6):1444-1452. doi:10.7150/jca.28413. https://www.jcancer.org/v10p1444.htm

Other styles

Abstract

Background: Specific guidelines recommend at least 15 or 16 lymph nodes (LNs) be examined to adequately assess nodal category of gastric cancer (GC), but the requirement for minimum number of regional LNs retrieval is not mentioned. This study aims to investigate survival significance from various numbers of perigastric (N1) LNs retrieval and to determine an optimal number harvested in such region.

Study design: From April 1994 to March 2012, 1003 resectable GC patients with at least 15 LNs examined were included. Patients with at least 15 N1 nodes retrieval were assigned into study group, with the rest into control group. The 5-year overall survival (OS) rate was compared between two groups, and an optimal number of examined N1 nodes was detected by a survival joinpoint analysis.

Results: 635 (63.3%) patients in study group had median 22 (range, 15-75) N1 nodes and 3 (range, 0-74) positive N1 nodes retrieval, with median 10 (range, 0-14) N1 nodes and 1 (range, 0-29) metastatic N1 nodes examined in control group. The number of N1 nodes retrieval was associated with tumor location (P=0.007), tumor stage (P<0.001) and total number of harvested LNs (r=0.691, P<0.001). Median survival time (79.0 vs. 72.0 months, P=0.462) and actual 5-year OS rate (41.0% vs. 39.2%, P=0.463) were slightly improved in study group compared with control group, with significance obtained via stage-by-stage analysis. The joinpoint analysis indicated that at least seven N1 nodes retrieval achieved survival significance (81.0 vs. 35.0 months, P=0.036), with survival superiority remained until reaching up to 15 N1 nodes.

Conclusion: Adequate retrieval of perigastric LNs is essential for radical gastrectomy. A harvest of at least 7-15 perigastric LNs could achieve long-term survival benefit for GC patients.

Keywords: gastric cancer, regional lymph nodes, lymphadenectomy, survival, tumor staging

Citation styles

APA

Ye, J., Ren, Y., Dai, W., Chen, J., Cai, S., Tan, M., He, Y., Yuan, Y. (2019). Does Lymphadenectomy with at Least 15 Perigastric Lymph Nodes Retrieval Promise an Improved Survival for Gastric Cancer: A Retrospective Cohort Study in Southern China. Journal of Cancer, 10(6), 1444-1452. https://doi.org/10.7150/jca.28413.

ACS

Ye, J.; Ren, Y.; Dai, W.; Chen, J.; Cai, S.; Tan, M.; He, Y.; Yuan, Y. Does Lymphadenectomy with at Least 15 Perigastric Lymph Nodes Retrieval Promise an Improved Survival for Gastric Cancer: A Retrospective Cohort Study in Southern China. J. Cancer 2019, 10 (6), 1444-1452. DOI: 10.7150/jca.28413.

NLM

CSE

Ye J, Ren Y, Dai W, Chen J, Cai S, Tan M, He Y, Yuan Y. 2019. Does Lymphadenectomy with at Least 15 Perigastric Lymph Nodes Retrieval Promise an Improved Survival for Gastric Cancer: A Retrospective Cohort Study in Southern China. J Cancer. 10(6):1444-1452.

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) license (https://creativecommons.org/licenses/by-nc/4.0/). See http://ivyspring.com/terms for full terms and conditions.