Related Experiment Video
Updated: Jul 20, 2026
Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
Evaluation of anastomotic microcirculation after low anterior rectal resection: an experimental study with different
S Willis1, F Hölzl, C J Krones
1Department of Surgery, RWTH Aachen, Aachen, Germany. swillis@ukaachen.de
Background:
Data on anastomotic microcirculation of coloanal anastomoses are contradictory. Therefore, it was the aim of the present study to investigate perianastomotic blood perfusion in a standardized experimental setting comparing three forms of reconstruction using laser fluorescence videography, a new method for the evaluation of microcirculation.
Methods:
After a standardised rectal resection in dogs, reconstruction was performed as straight end-to-end (n = 6), side-to-end (n = 6), or J-pouch (n = 6) coloanal anastomosis. Bowel perfusion was evaluated using IC-View laser fluorescence videography.
Results:
The perfusion index was significantly reduced in all three groups compared to the reference regions: endto-end anastomosis, median, 93% (range, 63%-136%); side-to-end-anastomosis, 65% (35%-138%); colonic-J-pouch anal anastomosis, 52% (32%-72%); p < 0.001).
Conclusions:
Straight coloanal anastomoses provide better anastomotic microcirculation after rectal resections than colonic-J-pouch anal anastomoses or side-to-end anastomoses. However this effect does not seem to be decisive for the prevention of anastomotic leaks.
