Endoscopy & Procedures · Article 179

When Should Endoscopic Full-Thickness Resection Be Used?

Full-thickness resection requires a structured, evidence-based clinical approach. This review summarizes the key diagnostic, management, monitoring and decision points for gastroenterology and hepatology practice.

Full-thickness resection clinical reference — Related free clinical resource: Endoscopy and Diagnostic Imaging.

Full-thickness resection: practical clinical approach

This page focuses on Full-thickness resection with emphasis on decisions that change patient care, common pitfalls, and the current evidence base.

External guidance for Full-thickness resection

Clinical takeaway: For Full-thickness resection, decisions should integrate current guidelines, patient-specific risk, and the evidence summarized below.

Answer first: Endoscopic full-thickness resection (EFTR) is most useful for selected lesions that cannot be removed safely or completely by conventional EMR or ESD. Common colorectal indications include small nonlifting adenomas, scarred recurrent lesions and selected lesions at difficult sites such as the appendiceal orifice or diverticular involvement. EFTR is also used for selected subepithelial lesions. Lesion size, anatomy, cancer suspicion and device limitations matter; larger lesions or deep invasive cancer generally require another strategy.

EFTR solves the nonlifting problem

A scarred lesion can be captured and resected through all bowel-wall layers after secure closure.

Size limits are real

Clip-based EFTR devices work best for relatively small lesions that can be drawn fully into the cap.

It is not a substitute for oncologic surgery

Deep invasive cancer with nodal risk still requires lymph-node assessment.

Practical clinical algorithm

1. Confirm that conventional EMR/ESD is unsuitable.

2. Assess lesion size, fibrosis and location.

3. Exclude deep invasive cancer requiring oncologic surgery.

4. Use EFTR in an experienced center with complication-management capability.

5. Plan histologic and site surveillance.

Common mistakes to avoid

Attempting EFTR on lesions too large for reliable capture.
Using EFTR to avoid surgery for cancer with nodal risk.
Ignoring appendicitis risk near the appendiceal orifice.
Performing the procedure without advanced closure/rescue expertise.
Failing to retrieve the specimen intact.

Trainee takeaway

EFTR is a niche organ-preserving tool for small difficult lesions—especially scarred or nonlifting lesions—not a universal alternative to EMR, ESD or surgery.

Frequently asked questions

What is a classic colorectal indication?

A small nonlifting recurrent adenoma in a scarred resection site.

Can EFTR remove subepithelial lesions?

Yes, in selected anatomically suitable cases.

Does EFTR treat lymph nodes?

No, so it is not adequate oncologic therapy for cancers with meaningful nodal risk.

References

1. Thomson ABR. Endoscopy and Diagnostic Imaging. Part I. CAPstone Academic Publishers; 2012.

2. Thomson ABR. Practice Review in Gastroenterology. CAPstone Academic Publishers; 2014.

3. D’Souza LS, et al. AGA Clinical Practice Update on Endoscopic Full-Thickness Resection for Gastrointestinal Subepithelial Lesions. Gastroenterology. 2024.

Educational content only. Clinical decisions should incorporate the individual patient, local resources, product labeling, and the most current applicable guideline or regulatory information.

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