Blood Flow Path Reconstruction in Rectal Cancer

NCT05674097 | Completed

• 1 other identifier: 2020GQliu
• Study Type: observational
• Target: 89
• Locations: 1 country
• Sites: 1

Brief Summary

A total of 89 patients with distal sigmoid and rectal cancer were referred for observation and underwent MS-CTA between June 2020 and March 2022. The distribution of the left colic artery (LCA) was classified, and the presence of the accessory middle colic artery (AMCA) was assessed. Blood flow paths were planned preoperatively based on the classification of LCA branches. High ligation was performed during standard radical surgery. Intraoperatively, particular care was taken to preserve the bifurcation of the ascending and descending branches of the LCA. The planned blood flow paths were then compared with the actual postoperative blood flow paths to validate the previously proposed mechanism.

Conditions

Rectal Cancer; Surgery; Image

Outcome Measures

Primary Outcomes (1)

• Six pattens of blood flow and AMCA based on the preoperative observation

  1 hour after the manual subtraction computed tomography angiography (MS-CTA) procedure

Interventions

no intervention OTHER

no intervention

Eligibility Criteria

• Age: 39 Years - 81 Years
• Sex: all
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Patients with distal sigmoid colon or rectal cancer and they were received routine laparoscopic surgery.

You may qualify if:

• Clinical diagnosis of distal sigmoid colon or rectal cancer
• cTNM stage confirmed as I-III on MRI or CT
• Undergoing laparoscopic anterior resection (LAR)

You may not qualify if:

• Arterial phase scanning initiated too early
• Unclear anatomic structure on imaging
• No postoperative enhanced CT

Sponsors & Collaborators

• Shandong First Medical University: lead
• Jinan Central Hospital: collaborator

Study Sites (1)

Guoqin LIU

Jinan, Shandong, 250013, China

Location

MeSH Terms

Conditions

Rectal Neoplasms

Condition Hierarchy (Ancestors)

Colorectal Neoplasms; Intestinal Neoplasms; Gastrointestinal Neoplasms; Digestive System Neoplasms; Neoplasms by Site; Neoplasms; Digestive System Diseases; Gastrointestinal Diseases; Intestinal Diseases; Rectal Diseases

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: OTHER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Director.Liu

Study Record Dates

• First Submitted: December 21, 2022
• First Posted: January 6, 2023
• Study Start: June 8, 2020
• Primary Completion: March 8, 2022
• Study Completion: March 31, 2022
• Last Updated: September 22, 2025

Record last verified: 2022-12

Data Sharing

• IPD Sharing: Will not share

Locations

CN (1)