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Outcomes After Transanal Endoscopic Microsurgery With Intraperitoneal Anastomosis

Eyvazzadeh, Daniel J. M.D.1; Lee, Janet T. M.D.2; Madoff, Robert D. M.D.2; Mellgren, Anders F. M.D., Ph.D.3; Finne, Charles O. M.D.2

Diseases of the Colon & Rectum: April 2014 - Volume 57 - Issue 4 - p 438–441
doi: 10.1097/DCR.0000000000000063
Original Contributions: Colorectal/Anal Neoplasia

BACKGROUND: Transanal endoscopic microsurgery has gained increasing popularity as a treatment alternative for early stage rectal neoplasms. With continued advances in technique and experience, more proximal rectal tumors are being surgically managed by using transanal endoscopic microsurgery with an intraperitoneal anastomosis.

OBJECTIVE: The purpose of this study was to review the outcomes of patients who have undergone intraperitoneal anastomosis with the use of the transanal endoscopic microsurgery technique.

DESIGN: A prospective, single-surgeon database documented 445 consecutive patients undergoing transanal endoscopic microsurgery from October 1, 1996 through January 1, 2012. We retrospectively reviewed information from all patients who underwent transanal endoscopic microsurgery with an intraperitoneal anastomosis in this prospective database.

SETTINGS: All procedures took place in an inpatient hospital setting.

PATIENTS: All patients satisfied workup criteria to undergo surgery for rectal neoplasm.

INTERVENTIONS: All patients underwent transanal endoscopic microsurgery for rectal neoplasm.

MAIN OUTCOME MEASURES: Size and pathology of lesion, length of procedure, hospital stay, estimated blood loss, margin status, and complications were the outcomes measured.

RESULTS: Twenty-eight patients who underwent transanal endoscopic microsurgery had definitively documented intraperitoneal entry and anastomosis. Median follow-up was 12 months (range, 0.5–111 months). There were no operative mortalities. Procedure-related complications included urinary retention (11%), fever (11%), and fecal seepage (4%). Four patients (14%) had positive margins on final pathology. One patient (3%) required abdominal exploration for an anastomotic leak but did not require diversion.

LIMITATIONS: Although this study analyzes prospectively collected data, it is nonetheless a retrospective analysis that can introduce bias. Because this is a single-center study with a relatively homogenous population, the results may not be generalizable. Our sample size may also be underpowered to detect clinically significant outcomes.

CONCLUSIONS: Transanal endoscopic microsurgery with intraperitoneal anastomosis can be safely performed without fecal diversion by experienced surgeons.

1Colon and Rectal Surgery, Department of Surgery, St. Luke’s University Health Network, Bethlehem, Pennsylvania

2Division of Colon and Rectal Surgery, Department of Surgery, University of Minnesota School of Medicine, Minneapolis, Minnesota

3Division of Colon and Rectal Surgery, University of Illinois at Chicago, Chicago, Illinois

Financial Disclosure: None reported.

Poster presentation at the meeting of The American Society of Colon and Rectal Surgeons, Phoenix, AZ, April 27 to May 2, 2013.

Correspondence: Daniel Eyvazzadeh, M.D., 406 Delaware Ave, Bethlehem, PA 18015. E-mail:

© 2014 The American Society of Colon and Rectal Surgeons