The real world based multi-cohorts study aims to evaluate the safety and effectiveness of function preserving gastrectomy including pylorus-preserving distal gastrectomy, proximal gastrectomy and wedge gastrectomy for T1 and T2 gastric cancer patients.
Gastric cancer patients with clinical stage T1/2 will be screened for the study. For the patients enrolled, a multidisciplinary discussion will be performed to evaluate the proper gastrectomy for the patients and functional preserving gastrectomy will be considered for the indicated patients. For patients not proper for functional preserving gastrectomy, standard gastrectomies will be suggested. After surgery, a close follow up will be performed. During the study, a thorough data collection will be performed to evaluate the safety and effectiveness of functional preserving gastrectomy and recovery and postoperative function of remnant stomach.
Study Type
OBSERVATIONAL
Enrollment
300
Function preserving gastrectomy include pylorus preserving gastrectomy, proximal gastrectomy, and partial gastrectomy.
Standard gastrectomy include distal gastrectomy and total gastrectomy with standard lymphadenectomy according to the Japanese gastric cancer treatment guideline.
Beijing Cancer Hospital
Beijing, Beijing Municipality, China
RECRUITINGR0 resection rate
Pathologic R0 resection rate with negative proximal and distal margin based on the postoperative pathologic result.
Time frame: 30 days after surgery
Extent of lymphadenectomy of different gastrectomy
resected lymph node number
Time frame: 30 days after surgery
Distribution of metastatic lymph node
metastatic lymph node number
Time frame: 30 days after surgery
postoperative morbidity
postoperative complication rate according to the clavien-dindo classification
Time frame: 30 days after surgery
postoperative mortality
postoperative death rate with 30 days
Time frame: 30 days after surgery
remnant stomach function
volume of remnant stomach
Time frame: 3 years after surgery
disease free survival
disease free survival after surgery
Time frame: 3 years after surgery
Quality of life after surgery
Quality of life evaluated by EORTC-STO22 by questionnaire
Time frame: 3 years after surgery
overall survival
overall survival after surgery
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Time frame: 3 years after surgery