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Novel Ileocecal Valve-Sparing Anastomosis in Laparoscopic Right Hemicolectomy

NCT07095985 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 43

Last updated 2025-07-31

No results posted yet for this study

Summary

This is a single-center retrospective cohort study conducted by the Department of General Surgery at the Second Affiliated Hospital of Army Medical University (Xinqiao Hospital). The study aims to evaluate the safety and clinical efficacy of a novel anastomotic technique designed to reconstruct ileocecal valve (ICV) function during laparoscopic right hemicolectomy for right-sided colon cancer.

Background: Standard right hemicolectomy necessitates resection of the ICV, a critical structure regulating ileocolonic transit and acting as a bacterial barrier. Its loss can lead to small intestinal bacterial overgrowth (SIBO), diarrhea, malabsorption, and reduced quality of life. While preserving the ICV is ideal when oncologically feasible, it's often unavoidable. This study proposes an innovative anastomosis technique ("Revolute Insert Side-End Ileocecal Valve Reconstruction" - "RISE anastomosis") to functionally reconstruct the ICV.

Study Design:

Population: 50 patients who underwent laparoscopic right hemicolectomy at the center, meeting inclusion/exclusion criteria (age 18-80, ASA ≤3, primary tumors in appendix, cecum, ascending colon, hepatic flexure, or proximal 1/3 transverse colon, complete data).

Groups:

Conventional Anastomosis Group (n=30): Standard side-to-side ileocolic anastomosis using a linear stapler.

RISE anastomosis Group (n=20): Novel technique involving everting the ileal stump with sutures to create an artificial valve, then implanting it into an incision on the colonic wall and suturing it circumferentially.

Primary Objective: Assess safety and feasibility of RISE anastomosis.

Secondary Objective: Evaluate the clinical efficacy of RISE anastomosis on bowel function recovery.

Key Outcomes:

Safety (Primary): 30-day postoperative complications (anastomotic leak, bleeding, stricture), severe complications (Clavien-Dindo).

Efficacy (Secondary): Time to first flatus, first defecation, first formed stool; Bristol stool scale; defecation frequency/urgency; incontinence rates; length of stay; reoperation/readmission rates.

Other: Operative time, anastomosis time, blood loss, lymph node yield, inflammatory markers, follow-up assessments (contrast studies, endoscopy).

Data Analysis: Data extracted from electronic medical records. Statistical analysis using SPSS 22.0 (χ² test for categorical data, t-test for normally distributed continuous data; significance p\<0.05).

Ethics: Approved by the institutional ethics committee. Conducted in accordance with the Declaration of Helsinki and Chinese regulations. Patient privacy and data confidentiality are prioritized.

Timeline: Patient data collection and analysis (Jun-Aug 2024); Statistical analysis and manuscript preparation (Sep-Dec 2024).

Significance: This study investigates a potentially transformative surgical technique. If proven safe and effective, RISE anastomosis could significantly improve postoperative bowel function and quality of life for patients requiring ICV resection during right hemicolectomy, addressing a major unmet clinical need related to ICV loss.

Conditions

  • Radical Right Hemicolectomy

Sponsors & Collaborators

  • Army Medical University, China

    lead OTHER

Principal Investigators

  • Weidong Xiao, MD · Second Affiliated Hospital of Army Medical University

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-07-01
Primary Completion
2024-08-30
Completion
2024-12-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07095985 on ClinicalTrials.gov