Endoscopic Full-Thickness Resection (EFTR) - Polyp Resection Techniques
Technique:
• Planned resection margins marked thermally. The full-thickness resection device (FTRD) system is placed onto the colonoscope. The polyp is grasped and slowly pulled into a cap loaded with a modified over-the-scope clip. The clip is deployed followed by closure of a preloaded snare at the tip of the cap, and the tissue is cut with electrocautery.
Indications:
• En bloc resection for non-lifting mucosal polyps (scarred or polyps with deep submucosal invasion) or submucosal tumors
• Polyps in difficult anatomic locations
Limitations:
• Advancing the FTRD mounted colonoscope to the cecum can be challenging for proximal lesions
• Difficult to achieve en bloc resection for lesions mm
• Tissue must be pulled into cap rather than suctioned, to avoid injury of extracolonic structures; more fibrotic areas may therefor be challenging
• Steps must be performed in rapid sequence to avoid losing grasp of tissue between deploying the clip and closing the snare
• Delayed adverse events may still occur despite adequate clip closure
Dr. Enrik Aguila @enrrikke
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