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Cecal Resection with Bipolar Sealing Devices in a Rat Model.

E Tagkalos1, A Heimann2, T Gaiser3

  • 1Department of General, Visceral and Transplantation Surgery, Johannes Gutenberg University Hospital Mainz, Mainz, Germany.

Journal of Investigative Surgery : the Official Journal of the Academy of Surgical Research
|May 19, 2018
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Summary
This summary is machine-generated.

Bipolar sealing devices are safe for experimental appendectomies in rats, showing comparable results across different energy devices. Further research is needed to confirm efficacy in humans.

Keywords:
bipolarbipolar sealing devicescecal resectionratsstapler

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Area of Science:

  • Surgical innovation
  • Experimental surgery
  • Animal models

Background:

  • Bipolar sealing devices are standard for vascular sealing.
  • Their efficacy in colonic sealing for appendectomy models is unexplored.
  • Rats serve as a model for evaluating experimental appendectomy techniques.

Purpose of the Study:

  • To assess the feasibility and safety of colonic sealing using bipolar energy devices.
  • To compare bipolar sealing devices against linear staplers in a rat appendectomy model.
  • To evaluate the mechanical strength and histological outcomes of colonic sealing.

Main Methods:

  • Seventy-five male Wistar rats underwent cecal resection using four bipolar devices or a linear stapler.
  • Specimens were harvested immediately or on postoperative day 7.
  • Bursting pressure, clinical examination, hydroxyproline levels, and histopathology were assessed.

Main Results:

  • No mortality or insufficiencies were observed.
  • Bipolar devices showed comparable results, with bursting pressure increasing by 30.8% from day 0 to day 7.
  • Linear staplers yielded higher bursting pressures but more ischemic necrosis histopathologically.

Conclusions:

  • Cecal resection and sealing with bipolar energy devices is feasible and safe in a rat appendectomy model.
  • Different bipolar energy devices produced similar outcomes in this study.
  • Further investigation into early-stage wound healing mechanisms is required before human clinical application.