Toru Tonooka, Nobuhiro Takiguchi, Yoshihiro Nabeya, Atsushi Ikeda, Hiroaki Souda, Isamu Hoshino, Toshiya Sakamoto, Yousuke Iwadate. Chiba Cancer Center
Aim: The aim of this study is to evaluate the pathological resection margin after laparoscopic intersphincteric resection for low rectal cancer.
Method: From 2010 to 2014, there were eight laparoscopic intersphincteric resection cases for low rectal cancer. We evaluated the clinicopathological findings and the positivity of pathological resection margin.
Results: The median distance from the anal verge to the tumor was 40 mm (range, 10-45), and the median diameter of the tumor was 27mm (range, 15-60). There was no case with neoadjuvant therapy. The estimated tumor depth were cT1 in 5 cases (62.5%) and cT2 in 3 cases (37.5%), and the actual tumor depth were pTis in 3 cases (37.5%) and pT1 in 2 cases (25.0%) and pT2 in 3 cases (37.5%). The median distal resection margin was 10 mm (range, 5-25). Pathological resection margin, such as the proximal, distal and circumferential margin was negative in all cases (100%). There was no mortality, but morbidity occurred in two cases (one case of anastomotic leakage and one case of small bowel obstruction). No recurrence nor distant metastasis was observed in the follow up period.
Conclusion: There was no positive resection margin case in the series. Our patient selection, indication and the technique were considered to be precise and appropriate.
Presented at the SAGES 2017 Annual Meeting in Houston, TX.
Abstract ID: 86455
Program Number: P252
Presentation Session: iPoster Session (Non CME)
Presentation Type: Poster