Endoscopic Resection of Colorectal Circumferential and Near-circumferential Laterally Spreading Lesions: Outcomes and Risk of Stenosis

Overview

Journal Int J Colorectal Dis

Specialties Gastroenterology
General Surgery

Date 2019 Feb 21

PMID 30783739

Authors

Andrew Emmanuel

Anil Ghosh

Christo Lapa

Shraddha Gulati

Margaret Burt

BuHussain Hayee

Amyn Haji

Affiliations

Soon will be listed here.

Abstract

Purpose: Almost any colorectal superficial neoplastic lesion can be treated by endoscopic resection (ER) but very little is known about outcomes of ER leaving circumferential or near-circumferential mucosal defects. We report the outcomes of ER leaving ≥ 75% circumferential mucosal defects performed in a western expert centre.

Methods: Five hundred eighty-seven ERs of large colorectal lesions ≥ 20 mm were grouped according to the extent of the mucosal defect and comparisons made between those with < 75% and ≥ 75% defects. Independent predictors of stenosis were identified.

Results: Forty-seven patients had ER leaving ≥ 75% circumference defect, most located at or distal to the rectosigmoid, with ≥ 90% defects in 5 and 100% in 11. There were no significant colonic muscle injuries in patients with ≥ 75% defect and no differences in post-procedure bleeding (OR 1.6, 95% CI 0.2-13.7, p = 0.64) between patients with ≥ 75% and < 75% defects. Stenosis developed in 9 patients. ≥ 90% circumference defect was the only independent risk factor for stenosis (OR 286, p < 0.001). Three of 4 patients with asymptomatic stenosis had successful expectant management. The remainder were treated with dilatation. Recurrence was more likely in those with ≥ 75% defect (OR 7.9, 95% CI 3.8-16.4, p < 0.001) but was managed with further ER in all but 2 cases.

Conclusion: ER of colorectal lesions resulting in defects ≥ 75% of the luminal circumference is challenging but safe and effective when performed in an expert centre. The only independent predictor of stenosis is ≥ 90% circumference defect but some patients improve with expectant management; therefore, pre-emptive intervention may not be warranted.

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