Laparoscopic vs.open lower mediastinal lymphadenectomy for Siewert typeⅡ/Ⅲadenocarcinoma of esophagogastric junction:An exploratory,observational,prospective,IDEAL stage2b cohort study(CLASS-10 study)  

作　　者：Shuangxi Li Xiangji Ying Fei Shan Yongning Jia Zhemin Li Kan Xue Rulin Miao Yinkui Wang Zhaode Bu Xiangqian Su Ziyu Li Jiafu Ji 

机构地区：[1]Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing),Gastrointestinal Cancer Center,Peking University Cancer Hospital&Institute,Beijing 100142,China

出　　处：《Chinese Journal of Cancer Research》2022年第4期406-414,共9页中国癌症研究（英文版）

基　　金：supported by the Chinese Medical Foundation(No.2020064)。

摘　　要：Objective:This study aims to verify the feasibility and efficacy of laparoscopic lower mediastinal lymphadenectomy for Siewert typeⅡ/Ⅲadenocarcinoma of esophagogastric junction(AEG).Setting:An exploratory,observational,prospective,cohort study will be carried out under the Idea,Development,Exploration,Assessment and Long-term Follow-up(IDEAL)framework(stage 2 b).Paritcipants:The study will recruit 1,036 patients with cases of locally advanced AEG(Siewert typeⅡ/Ⅲ,clinical stage cT2-4 aN0-3 M0),and 518 will be assigned to either the laparoscopy group or the open group.Interventions:Patients will receive lower mediastinal lymphadenectomy along with either total or proximal gastrectomy.Primary and secondary outcome measures:The primary endpoint is the number of lower mediastinal lymph nodes retrieved,and the secondary endpoints are the surgical safety and prognosis,including intraoperative and postoperative lower-mediastinal-lymphadenectomy-related morbidity and mortality,rate of rehospitalization,R0 resection rate,3-year local recurrence rate,and 3-year overall survival.Conclusions:The study will provide data for the guidance and development of surgical treatment strategies for AEG.Trial registration number:The study has been registered in ClinicalTrials.gov(No.NCT04443478).

关 键 词：Esophagogastric junction LAPAROSCOPY lymph node excision stomach neoplasms 

分 类 号：R735[医药卫生—肿瘤]