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A single center randomized prospective study on the criteria for lymph node sorting for pathological examination after curative surgery for gastric cancer
(**DJY001 Trail**)
Edition Number: 1.0 Edition Generation Date: Qct 30, 2017 Principal Investigator: Jingyu Deng and Han Liang Research Institute: Cancer Hospital & Institute of Tianjin Medical University
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protocol

- Gastric adenocarcinoma identified by histopathologic examination
- Undergo potentially curative gastrectomy plus D2 lymphadenectomy (cTanyNanyM0)
- Age between 18 and 70 years
- KPS score >60
- No neoadjuvant therapy - No seriously chronic diseases of important organs
- No other malignancies Randomized included in the study  
  
Group A(Fine sorting lymph nodes)  
  
(n=138)
Group B(Regional sorting lymph nodes)
(n=138)
Undergo curative gastrectomy plus D2 lymphadenectomy Fine sorting lymph nodes from samples for pathological examination Regional sorting lymph nodes from  
  
  
samples for pathological examination  
| Differences of lymph node  count for pathological  examination between above  mentioned two groups of  patients according to each  pTNM classification, pN  stage and pT stage   | Differences of overall  survival between  above mentioned two  groups of patients  according to each  pTNM classification   | Differences of   |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------|------------------|
| recurrence between  above mentioned  two groups of  patients according  to each pN stage                                                                                         | Differences of overall  survival and pN stage  between above  mentioned two groups  of patients according to  each pT stage |                  |  
Elucidation the influences of lymph node metastatic migration in gastric  
 adenocarcinoma patients underwent curative surgery by different lymph node sorting methods to evaluate the optimal method for pathological examination after surgery