Abstract
Background
Combined-Endoscopic-Laparoscopic-Surgery (CELS) was developed for benign colonic polyps, endoscopically unresectable, to avoid segmental colectomy. This observational study aims to compare surgical outcomes of endoscopically unresectable colonic polyps treated laparoscopically before and since the institutional introduction of CELS. Primary endpoint was postoperative morbidity and mortality; secondary endpoints were time of hospitalization and histopathological findings.
Methods
Charts of all patients with preoperative diagnosis of benign colonic tumors, treated laparoscopically at our institution from 1/2010 to 2/2020 were reviewed. Patients with polyps (1) affecting ileocecal valve, (2) occupying > 50% of the circumference, (3) ≥ 3 endoscopically unresectable polyps, (4) inflammatory bowel disease, (5) polyps within diverticular area post diverticulitis, (6) rectal polyps (7) foreseen impossibility of laparoscopy (8) preoperatively biopsy proven invasive adenocarcinoma were excluded. Group I consists of all patients potentially treatable by CELS but operated by laparoscopic colonic resection as CELS was not yet institutionally established. Group II includes all patients treated with CELS (since 11/2017).
Results
One hundred-fifteen consecutive patients were reviewed. Applying exclusion criteria, twenty-three patients form group I and twenty-three group II (female 30.4%, median age 68 years). Groups distributed homogenously for age, BMI (body mass index) and polyps´ localization with most polyps (60.4%) localized in right colon; group II patients had significantly higher American Society of Anesthesiologists (ASA) score. Median operating time, hospital stay and morbidity were significantly less in group II. Postoperative morbidity occurred overall in 14 patients (30.4%), mostly Clavien-Dindo class I-II (26.1%) and significantly less in group II (p = 0.017), Clavien-Dindo III-IV distributed equally (one patient each group) without postoperative mortality. Definitive histopathology showed invasive adenocarcinoma in 8.3% without differences between groups. Two patients with invasive adenocarcinoma after CELS were advised for oncological resection.
Conclusion
CELS is safe and efficient to treat complex, benign colonic polyps by a complete minimal invasive laparoscopic approach. CELS showed better surgical outcomes with less morbidity, no mortality and appropriate pathological results avoiding unnecessary laparoscopic surgery with intestinal anastomosis.
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Acknowledgements
The authors thank Mr. Bernat Miguel, Data Manager of the Colorectal Unit, General and Digestive Surgery, Bellvitge University Hospital and IDIBELL, University of Barcelona, for the statistical analysis. Authors thank Dr. Federica Mento for the drawings.
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Drs. Thomas Golda, Claudio Lazzara, Maria Sorribas, Antonio Soriano, Ricardo Frago, Abdulrahman Alrasheed, Esther Kreisler and Sebastiano Biondo have no conflict of interest or financial ties to disclose.
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Presented, in part, at the XXIII Reunion Nacional de la Fundación Asociación Española de Coloproctología, Spain, November 2019.
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Video 1 (LAER: laparoscopy assisted endoscopic resection). Laparoscopic dissection and presentation of the colonic segment, endoscopic en-bloc resection of the polyp (mp4 70586 kb)
Video 2 (EAWR: endoscopy assisted wedge resection). Endoscopic localization of the polyp. Placement of two or more assistance sutures under endoscopic guidance. Uplifting of the colonic segment to perform a wedge resection. The suture line is over-sewn by laparoscopy (mp4 190711 kb)
Video 3 (LAER combined with EAWR). Joint venture procedure of endoscopic polyp reduction and colonic wedge resection. Endoscopic and laparoscopic identification of a large submucosal lipoma provoking invagination and clinical suboclusion. Reduction of the tumor´s diameter by fragmented endoscopic polypectomy; once the – most definitely – benign submucosal tumor is reduced to its base, a wedge resection of the lipoma´s base is performed. Over-sewing the suture line is not shown (mp4 186797 kb)
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Golda, T., Lazzara, C., Sorribas, M. et al. Combined endoscopic-laparoscopic surgery (CELS) can avoid segmental colectomy in endoscopically unremovable colonic polyps: a cohort study over 10 years. Surg Endosc 36, 196–205 (2022). https://doi.org/10.1007/s00464-020-08255-3
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DOI: https://doi.org/10.1007/s00464-020-08255-3