Chinese Colorectal Cancer Database

Study Overview
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Brief Summary
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To establish the Chinese people's own clinical data database of colorectal cancer, reflecting the law and characteristics of colorectal cancer patients in China. Based on colorectal cancer surgery, collect clinical data, especially data on clinical manifestations, complications, laboratory tests, auxiliary examinations, postoperative clinical effects, surgical complications, and colorectal cancer recurrence, so as to lead the direction of clinical practice and academic research of colorectal cancer surgery in China. It provides a certain basis for future research on colorectal cancer. Provide academic consultation and data support to national health authorities.

Official Title
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Chinese Colorectal Cancer Database

Conditions
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Colonic Cancer, Rectal Cancer, Prospective Studies

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: adenocarcinoma of the colon by biopsy tolerable to surgery be able to understand and willing to participate in this trial with signature Exclusion Criteria: can not tolerate the surgery history of serious mental illness the researchers believe the patients should not enrolled in
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Positive rate of circumferential resection margin (CRM) of the specimens | Circumferential resection margin (CRM) is the distance between the deepest point of tumor in the primary cancer and the margin of resection in the retroperitoneum or mesentery by pathological examination. CRM 0-1mm is defined as positive, while >1mm is negative. | 10 days after surgery | 
| The grade score of the specimens integrity | shows the quality of the specimens: grade 1 is bad gross specimen which means incomplete mesorectum and pelvic fascia, and muscle layer can be see >5mm; grade 3 is high quality gross specimen, which means the specimen is cylindrical, mesorectum and pelvic fascia are complete; grade 2 is between 1and 3. | 10 days after surgery | 
| The distance between lower tumor margin and the lower reaction margin | shows the oncological safety of the surgery by pathological examination. Reports should contain the distance between lower tumor margin and the lower reaction margin. | 10 days after surgery | 
| local recurrence rate | show the oncological efficacy by 3-year follow-up according to the NCCN guideline. Participants should report every follow-up examinations which prove tumor recurrence and/or metastasis or not. | 3 years after surgery | 
| the operative time | preoperative safety containing operation information, complication information. | 30 days after surgery | 
| postoperative hospital stay | recovery information. | 3 year after surgery | 
| the score of postoperative life | quality of life contains two scales: Wexner scale and EORTC QLQ-CR29 scale, which show quality of life and the anal function. | 6 months after surgery | 
| disease free survival rate | show the oncological efficacy by 3-year follow-up according to the NCCN guideline. Participants should report every follow-up examinations which prove tumor recurrence and/or metastasis or not. | 3-year after surgery | 
| overall survival rate | show the oncological efficacy by 3-year follow-up according to the NCCN guideline. Participants should report every follow-up examinations which prove tumor recurrence and/or metastasis or not. | 3-year after surgery | 
| the rate of postoperative complications | preoperative safety containing operation information, complication information. | 30 days after surgery |