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Journal of Gastrointestinal Surgery

, Volume 23, Issue 2, pp 256–263 | Cite as

Should Pyloric Lymph Nodes Be Dissected for Siewert Type II and III Adenocarcinoma of the Esophagogastric Junctions: Experience from a High-Volume Center in China

  • Huihua Cao
  • Marie Ooi
  • Zhan Yu
  • Qing Wang
  • Zhong Li
  • Qicheng LuEmail author
  • Yugang WuEmail author
Original Article
  • 133 Downloads

Abstract

Background

The optimal extent of lymph node (LN) dissection remains controversial in adenocarcinoma of the esophagogastric junction (AEG), especially in Siewert types II and III. The aim of this study was to analyze clinicopathological characteristics of patients with Siewert type II and III AEGs to clarify whether pyloric (no. 5 and no.6) lymphadenectomy is essential in these patients.

Methods

A retrospective analysis was performed in the Third Affiliated Hospital of Soochow University from September 2008 to December 2012, and clinicopathological characteristics on all patients with Siewert type II and III AEGs, who underwent curative total gastrectomy with lymphadenectomy were collected. The index of estimated benefit from lymph node dissection (IEBLD) was used to evaluate the efficacy of lymph node dissection of no. 5 and no. 6. Both clinicopathological characteristics and IEBLDs were set as the standards in the assessment of the value of pyloric lymph nodes dissection.

Results

A total of 216 patients with AEG (Siewert type II: 141, Siewert type III: 75) were included into the study. Type III AEG had a larger tumor size and relatively advanced T stage compared to Type II AEG. The 5-year overall survival (OS) rates in type II and type III AEGs were almost similar (type II 50.4% vs. type III 46.7%, p = 0.782). There was a very low incidence of pyloric lymph nodes metastases in type II AEG (no. 5 is 1.4% and no. 6 is 0.7%). Hence, the IEBLDs of no. 5 and no. 6 lymph node were negligible regardless of the T stage and tumor differentiation. In type III AEG, metastasis rates of no. 5 and no. 6 lymph node were 9.3 and 5.3%, respectively. The IEBLDs of no. 5 and no. 6 lymph node were 2.7 and 1.3, respectively.

Conclusions

Based on the IEBLDs of pyloric lymph nodes, dissection of no. 5 and no. 6 lymph nodes were worthwhile for Siewert type III AEG but not essential for Siewert type II AEG.

Keywords

Adenocarcinoma of the esophagogastric junction Lymphadenectomy Siewert type II Siewert type III 

Notes

Author Contribution

Huihua Cao and Marie Ooi wrote the manuscript and analyzed clinicopathological data. Zhan Yu, Qing Wang and Zhong Li carried out the follow-ups and collected the clinicopathological data of patients. Yugang Wu and Qicheng Lu assisted Huihua Cao and Marie Ooi to complete the work and Yugang Wu funded the study.

Funding Information

The present study was supported by the Changzhou Municipal Scientific Research grant (grant no. CE20125020).

Compliance with Ethical Standards

Disclosures

The authors have no financial conflict of interest.

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Copyright information

© The Society for Surgery of the Alimentary Tract 2018

Authors and Affiliations

  1. 1.Department of General SurgeryThe Third Affiliated Hospital of Soochow University and The First People’s Hospital of ChangzhouChangzhouChina
  2. 2.Gastroenterology DepartmentRoyal Adelaide HospitalAdelaideAustralia

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