Electrocautery causes more ischemic peritoneal tissue damage than ultrasonic dissection

Area of Science:

• Surgical Techniques
• Tissue Injury Assessment
• Abdominal Surgery

Background:

• Minimizing peritoneal tissue injury is crucial for reducing postoperative inflammation, pain, and adhesions.
• Ultrasonic dissection is a technique that may offer reduced tissue damage compared to traditional methods.
• Peritoneal tissue ischemia is a key indicator of surgical trauma.

Purpose of the Study:

• To compare the extent of peritoneal tissue ischemia induced by ultrasonic dissection versus electrocautery.
• To evaluate the efficacy of microdialysis in quantifying peritoneal tissue damage from different surgical dissection methods.

Main Methods:

• Wistar rats underwent laparotomy with peritoneal microdialysis catheter implantation.
• Peritoneal incisions were created using either ultrasonic dissection or electrocautery.
• Microdialysis dialysate was collected for 72 hours post-surgery to measure lactate, pyruvate, glucose, and glycerol.

Main Results:

• Electrocautery group showed significantly higher lactate-pyruvate ratio (LPR), lactate-glucose ratio (LGR), and glycerol concentrations compared to ultrasonic dissection.
• Mean areas under the curve for LPR, LGR, and glycerol were substantially greater in the electrocautery group.
• These differences indicate more prolonged and severe peritoneal tissue ischemia with electrocautery.

Conclusions:

• Electrosurgery results in greater ischemic peritoneal tissue damage than ultrasonic dissection.
• Ultrasonic dissection appears to be a safer alternative for minimizing peritoneal injury during abdominal surgery.