Study on the Correlation Between Serum and Fecal Sialic Acid Levels and Tumor Characteristics as Well as Postoperative Anastomotic Leakage in Patients With Colorectal Tumors
This is a Single-center bidirectional cohort study combined with prospective sample analysis conducted by the Department of General Surgery at the Second Affiliated Hospital of Army Medical University (Xinqiao Hospital).
The purpose of this study was to retrospectively collect the preoperative serum sialic acid content and postoperative pathological data of colorectal cancer patients in our hospital's medical order system (including tumor size and stage, etc.) and anastomotic leakage, and analyze the correlation between serum sialic acid content and pathological characteristics of tumor and the correlation between anastomotic leakage; and further collect the feces of colorectal cancer patients in our hospital for 16S microbiome sequencing, and detect their sialic acid content, and observe the relationship between fecal sialic acid content and tumor size and stage; Intestinal flora composition and postoperative anastomotic leakage correlation, provide a new theoretical basis for the prevention and treatment of postoperative anastomotic malhealing.
Eligibility
Sex
ALL
Min age
18 Years
Max age
75 Years
Healthy volunteers
No
Inclusion Criteria: For the retrospective Part : Age between 18 and 80 years; Patients who underwent radical resection of colorectal cancer in our hospital from January 2010 to December 2020; Preoperative serum sialic acid level was measured (a routine test item in liver function biochemical tests in our hospital from 2010 to 2020); Complete postoperative pathological data.
* For the prospective Section:Age between 18 and 80 years; Patients who underwent radical resection of colorectal cancer in our hospital from August 2025 to August 2026; Voluntarily sign the informed consent form for fecal sample collection.
Exclusion Criteria:
* Emergency surgery, palliative surgery, or concurrent other malignant tumors; Preoperative neoadjuvant chemoradiotherapy (may affect SA levels and microbiota); Recent infection: history of severe infection within 3 months before surgery.
Primary outcome measure(s)
The occurrence of anastomotic fistula — From enrollment to the end of treatment at 1 month This study will statistically analyze the occurrence of anastomotic fistula in postoperative patients and explore its risk factors
Trial sites (1)
Facility
City
Region
Status
Second Affiliated Hospital of Army Medical University
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
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