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Laparoscopic highly selective vagotomy using CO2 laser: experimental study in dogs
S Sakuramachi1, T Kimura, N A Choudhury
1First Department of Surgery, Hamamatsu University School of Medicine, Japan.
Surgical Laparoscopy & Endoscopy
|October 1, 1996
Summary
This study introduces a novel laparoscopic highly selective vagotomy using a CO2 laser in dogs. This minimally invasive technique proved effective and faster than traditional surgery, with no complications observed.
Area of Science:
- Minimally Invasive Surgery
- Gastrointestinal Surgery
- Surgical Technology
Background:
- Highly selective vagotomy is a standard treatment for peptic ulcers.
- Conventional vagotomy can be performed via laparotomy or laparoscopy.
- Exploring novel techniques to improve efficacy and reduce invasiveness is ongoing.
Purpose of the Study:
- To establish and evaluate a modified laparoscopic highly selective vagotomy using CO2 laser in a canine model.
- To assess the effectiveness, feasibility, and safety of this novel technique.
Main Methods:
- Determined optimal CO2 laser dosage based on gross and histologic findings.
- Performed anterior CO2 laser vagotomy with posterior truncal vagotomy laparoscopically (lap-laser vagotomy) in five dogs.
- Performed anterior selective vagotomy with posterior truncal vagotomy via laparotomy (open surgical vagotomy) in five dogs for comparison.
Main Results:
- Lap-laser vagotomy showed no complications, including gastric perforation.
- Operating time for lap-laser vagotomy was approximately 50% shorter than open surgical vagotomy.
- Both groups exhibited significant and sustained reduction in acid secretion for 6 months post-surgery.
Conclusions:
- Anterior CO2 laser vagotomy with posterior truncal vagotomy is a safe and effective alternative to conventional vagotomy.
- The laparoscopic approach is easier to perform and reduces operative time.
- This technique is recommended as a method for laparoscopic highly selective vagotomy.