The Investigation For Common Hepatic Cartery Lymph Node Dissection Of Esophageal Squamous Cell Carcinoma

Objective:To investigate the best surgical method for Common hepatic ca rtery lymph node dissection of esophageal squamous cell carcinoma.Methods:From 2015 to 2017,413 patients with esophageal squamous cel l carcinoma who were dissected the common hepatic cartery lymp node were admitted in Cancer hospital of Sichuan.The relationship between m etastatic of rates of Common hepatic cartery lymp node and the clinical data including Sex,age,tumor site,diameter of tumor,invasion depth,di fferentiation degree,pathological stage,neurovascular invasion status werereviewed retrospectively.Results:A total of 10649 lymph nodes were dissected.The lymph node m etastatic rate was 45.27%(187/413),and the metastatic lymph node ratio w as 7.96%(848/10649).Lymph nodes adjacent to the middle esophagus,cer vical esophagus,cardia of stomach had a higher metastatic rate,while the Lymph nodes adjacent to the hilar,supraclavicular,common hepatic carteryhad a lower metastatic rate.A total of 775 lymph nodes were dissected i n Common hepatic cartery.The lymph node metastatic rate was 7.02%(29/413),and the metastatic lymph node ratio was 4.51%(35/775).To analysisthe relationship between metastatic of rates of Common hepatic cartery l ymp node and the clinical data.We conclusion that The common hepatic artery lymph node metastatic rates of upper,middle and lower esophageal squamous cell carcinoma were 2.89%(2/69),5.35%(12/224)and 12.50%(15/120),with significant difference.The common hepatic artery lymph node m etastatic rates of patients with diameter of tumor under 3cm,3-5cm andabove 5cm were 5.20%(9/173),5.52%(9/163)and 14.28%(11/77),with si gnificant difference.The common hepatic artery lymph node metastatic rat es of Sex,age,tumor site,diameter of tumor,invasion depth,differentiat ion degree,pathological stage,neurovascular invasion status,with no signif icant difference.Conclusion:The metastatic rates of common hepatic artery lymph node inesophageal squamous cell carcinoma is lower.For the Upper thoracic es ophageal cancer with tumor diameter under 5cm,the dissection of comm on hepatic lymph node can be ommitted in surgery.