Endoscopic resection of "giant" colorectal lesions: long-term outcome and safety

Abstract

Background: Today, endoscopic resection is a standard procedure for the resection of colonic polyps. Before the establishment of endoscopic techniques, the surgical approach was a clearly preferred method for removal of polyps with a size larger than three centimeters. The safety and effectiveness concerning endoscopic resections of colorectal polyps also with a size of more than 3 cm have been demonstrated in numerous studies.

Patients and methods: Data from 165 patients (age: 68 +/- 10.4 years) harboring 167 polyps with a minimum diameter of 3 cm were retrospectively evaluated. Objects of interest were macroscopic morphology and histopathology of the polyps, their localization in the colon, the modality of endoscopic resection and follow-up. In those cases with macroscopic signs of malignancy the patients were excluded.

Results: Successful endoscopic resections were obtained in 72.5 %. Therefrom, resection in the piecemeal-technique was necessary in 73.6 %. Recurrence polyps after endoscopic complete resections occurred in 26.3 % after a mean follow-up of 16 +/- 12.5 months. We registered a complication rate of 19.2 %. Relevant bleeding and perforation were registered as early complications in 18.6 %. We observed no intervention-related mortality.

Conclusion: Endoscopic mucosal resection is a safe and efficient method even for removing giant colorectal polyps. Controls are recommended at defined intervals for detecting polyp recurrence.