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Chinese Journal of Clinicians(Electronic Edition) ›› 2018, Vol. 12 ›› Issue (11): 605-608. doi: 10.3877/cma.j.issn.1674-0785.2018.11.003

Special Issue:

• Clinical Research • Previous Articles     Next Articles

Risk factors for lymph node metastasis in esophageal cancer

Kai Gao1, Jia Shi1, Chunyang Zhang1, Lu Han1, Yu Qi1,()   

  1. 1. Department of Thoracic Surgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
  • Received:2018-02-20 Online:2018-06-01 Published:2018-06-01
  • Contact: Yu Qi
  • About author:
    Corresponding author: Qi Yu, Email:

Abstract:

Objective

To analyze the potential risk factors for lymph node metastasis in esophageal cancer.

Methods

A retrospective study was performed on 150 patients who underwent radical surgery for esophageal cancer at the First Affiliated Hospital of Zhengzhou University from December 2016 to December 2017. The patient′s medical records and postoperative pathological data were recorded. Age, sex, lesion location, and tumor differentiation were analyzed. Risk factors related to lymph node metastasis in esophageal carcinoma, such as tumor infiltration depth and tumor length (long tumor diameter), were identified using single factor χ2 test and Logistic multivariate analysis.

Results

Among 150 patients with esophageal cancer, 60 had lymph node metastasis, and the positive rate was 40%. Univariate χ2 test showed that lymph node metastasis was significantly associated with tumor differentiation and tumor length (χ2=16.928, P<0.001; χ2=12.06, P=0.002). Lymph node metastasis was not significantly associated with age, gender, lesion location, or depth of tumor invasion (P>0.05). Logistic multivariate analysis showed that tumor differentiation and tumor length were independent risk factors for lymph node metastasis.

Conclusion

Tumor differentiation and lesion length are independent risk factors for lymph node metastasis in esophageal cancer. Lymph node dissection and postoperative treatment should be comprehensively evaluated according to lymph node metastasis status.

Key words: Esophageal cancer, Lymph node metastasis, Risk factors

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