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Related Experiment Video

Updated: Jan 31, 2026

Robotic D3 Partial Duodenal Resection with Primary Side-to-Side Anastomosis
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Stapler-Less Robotic Partial Gastrectomy: a Safety and Feasibility Experimental Study.

Tomasz Rogula1,2, David Leifer3, Jacob A Petrosky3

  • 1Case Western Reserve University, School of Medicine, 10900 Euclid Avenue, T402, Cleveland, OH, 44106-4924, USA. txr103@case.edu.

Obesity Surgery
|December 20, 2018
PubMed
Summary
This summary is machine-generated.

This study explored using bipolar electrocautery instead of staplers for robotic partial gastrectomy. Results show this technique is feasible, reducing bleeding during gastric wedge resection.

Keywords:
Animal modelExperimental surgeryPartial gastrectomyStapler-less totally robotic sleeve gastrectomyWedge gastric resection

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Area of Science:

  • Minimally Invasive Surgery
  • Surgical Technology
  • Gastrointestinal Surgery

Background:

  • Limited research exists on using bipolar cautery for gastric transection in sleeve gastrectomy or gastric wedge resection.
  • This study addresses the gap by investigating an alternative to linear surgical stapling devices.

Purpose of the Study:

  • To assess the feasibility and safety of using a bipolar electrosurgical sealing instrument to replace linear surgical stapling devices.
  • To evaluate the technique in totally robotic partial gastrectomy (TRPG).

Main Methods:

  • Ten female pigs underwent TRPG, with five in an intervention group using a robotic bipolar tissue coagulation device and five in a control group using staplers.
  • Outcomes assessed included intraoperative and postoperative bleeding, leaks, and tissue injury at the staple/suture line.

Main Results:

  • The intervention group showed significantly longer operating times (130 min vs. 87 min, p=0.03) but no intraoperative bleeding (0/5 vs. 3/5 in controls).
  • No leaks were detected intraoperatively. Postoperative complications were minimal in both groups.
  • The study group had significantly greater mean injury width (7.88 mm vs. 1.12 mm, p=0.001) and ulceration depth (2.25 mm vs. 0.99 mm, p=0.002) compared to the control group.

Conclusions:

  • The study demonstrates the technical feasibility of performing stapler-less gastric wedge resections using robotic bipolar electrocautery.
  • The technique's success was achieved with the combined use of a tissue clamp and suture, highlighting its potential in specific gastric procedures.