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. 2022 Nov 10;12:1023529. doi: 10.3389/fonc.2022.1023529

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Copyright © 2022 Tang, Pi, Zhang, Qiu and Wei

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Surgical procedure. In the non-PDM group, surgical procedures included (A) ligation of the inferior mesenteric artery proximal to its origin. (B) After separating the distal rectum, (C) the anal side of the rectum was transected and the specimen was extracted through the abdominal incision. After (D) dissection of the mesentery at the level of planned transection (black line), (E) Vascular perfusion was observed. In the PDM group, (F) the inferior mesenteric artery was ligated proximal to its origin. (G) the mesentery of the intended transection site with a length greater than 3 cm was separated. After (H) separating the distal rectum, (I) the anal side of the rectum was transected. (J) The vascular perfusion was observed at the level of planned transection (black line) after the specimen was removed from the abdominal incision.