colorectal cancer
Conditions
Interventions
Experimental group:Slowly and uniformly inject the methylene blue solution into the rectal cancer specimen through the open inferior mesenteric artery channel through the intravenous indwelling needle
Conrol group:Visual touch
Sponsors
West China Hospital of Sichuan University
Eligibility
Sex/Gender
All
Age
20 Years to 80 Years
Inclusion criteria
Inclusion criteria: 1. Over 18 years old; 2. Preoperative colonoscopy and biopsy pathology confirmed rectal cancer, and it was a single-source tumor; 3. The TNM staging of the tumor is stage I-III, and the staging method adopts the seventh edition of AJCC guidelines for tumor staging; 4. No liver, lung and other organs distant metastasis.
Exclusion criteria
Exclusion criteria: 1. Patients with tumor located more than 15 cm from the anal verge; 2. Patients undergoing palliative resection; 3. Patients admitted to the hospital for emergency surgery; 4. Patients with recurrence of rectal cancer after surgery; 5. Patients with heart, lung, kidney and other organ dysfunction who cannot tolerate surgery; 6. Patients with T4b requiring combined organ resection; patients who have previously received radiotherapy and chemotherapy for non-rectal cancer.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The proportion of postoperative lymph node harvest greater than or equal to 12; | — |
Secondary
| Measure | Time frame |
|---|---|
| Positive rate of postoperative lymph node metastasis diagnosed by pathology of rectal cancer; | — |
Countries
China
Contacts
Public ContactWang Ziqiang
West China Hospital of Sichuan University
Outcome results
None listed