Experience in colon sparing surgery in North America: advanced endoscopic approaches for complex colorectal lesions

Abstract

Background

Need for colon sparing interventions for premalignant lesions not amenable to conventional endoscopic excision has stimulated interest in advanced endoscopic approaches. The aim of this study was to report a single institution's experience with these techniques.

Methods

A retrospective review was conducted of a prospectively collected database of all patients referred between 2011 and 2015 for colorectal resection of benign appearing deemed endoscopically unresectable by conventional endoscopic techniques. Patients were counseled for endoscopic submucosal dissection (ESD) with possible combined endoscopic–laparoscopic surgery (CELS) or alternatively colorectal resection if unable to resect endoscopically or suspicion for cancer. Lesion characteristic, resection rate, complications, and outcomes were evaluated.

Results

110 patients were analyzed [mean age 64 years, female gender 55 (50%), median body mass index 29.4 kg/m²]. Indications for interventions were large polyp median endoscopic size 3 cm (range 1.5–6.5) and/or difficult location [cecum (34.9%), ascending colon (22.7%), transverse colon (14.5%), hepatic flexure (11.8%), descending colon (6.3%), sigmoid colon (3.6%), rectum (3.6%), and splenic flexure (2.6%)]. Lesion morphology was sessile (N = 98, 93%) and pedunculated (N = 12, 7%). Successful endoscopic resection rate was 88.2% (N = 97): ESD in 69 patients and CELS in 28 patients. Complication rate was 11.8% (13/110) [delayed bleeding (N = 4), perforation (N = 3), organ-space surgical site infection (SSI) (N = 2), superficial SSI (N = 1), and postoperative ileus (N = 3)]. Out of 110 patients, 13 patients (11.8%) required colectomy for technical failure (7 patients) or carcinoma (6 patients). During a median follow-up of 16 months (range 6–41 months), 2 patients had adenoma recurrence.

Conclusions

Advanced endoscopic surgery appears to be a safe and effective alternative to colectomy for patients with complex premalignant lesions deemed unresectable with conventional endoscopic techniques.

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