Role of a Preoperative Completion Colonoscopy in Patients With Obstructed Colorectal Cancer Post…

Cohort studyAsian journal of endoscopic surgery· 2026

Role of a Preoperative Completion Colonoscopy in Patients With Obstructed Colorectal Cancer Post Self-Expandable Metallic Stent (SEMS) Placement as a Bridge to Surgery (BTS).

Jiwei Guo, Cherylin Wan Pei Fu

Colon & Rectal SurgeryCohort studyClinical practiceQ3IF 1.1

A synchronous colorectal tumor was found in 1 of 24 preoperative stent colonoscopies

Role of a Preoperative Completion Colonoscopy in Patients With Obstructed Colorectal Cancer Post Self-Expandable Metallic Stent (SEMS) Placement as a Bridge to Surgery (BTS).

Jiwei Guo, Cherylin Wan Pei Fu

Asian journal of endoscopic surgery · 2026 · Q3 in Gastroenterology

Background

In patients with obstructed colorectal cancer (colorectal cancer), a self-expandable metallic stent (self-expandable metallic stent) can be placed across the tumor as a bridge-to-surgery (BTS).

Purpose

The aim of this study is to examine the role of a preoperative completion colonoscopy in the management of stented patients prior to definitive surgery and to determine whether this affects operative management.

Methods

From 2004 to 2023, all patients admitted under the Department of Colorectal Surgery in our institution who underwent self-expandable metallic stent for obstructed colorectal cancer were retrospectively reviewed from a prospectively collected database.

n = 140 patients

Results

1

of 24

one patient had a second, separate cancer found on the same colonoscopy

n = 140 patients

More results

A total of 140 patients with obstructed colorectal cancer underwent self-expandable metallic stent.

Self-expandable metallic stent was successful in 126 patients.

One hundred and two patients had self-expandable metallic stent as a BTS, and a preoperative colonoscopy was attempted in 30 of these patients.

More results

Twenty-eight out of 78 stented patients (35.9%) who did not have preoperative colonoscopy never underwent completion colonoscopy even after surgery.

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Conclusion

Preoperative completion colonoscopy after self-expandable metallic stent placement in patients with obstructed colorectal cancer is safe, aids in surgical planning, and prevents missed lesions.

Role of a Preoperative Completion Colonoscopy in Patients With Obstructed Colorectal Cancer Post Self-Expandable Metallic Stent (SEMS) Placement as a Bridge to Surgery (BTS).

Role of a Preoperative Completion Colonoscopy in Patients With Obstructed Colorectal Cancer Post Self-Expandable Metallic Stent (SEMS) Placement as a Bridge to Surgery (BTS).

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