Laser surgery in exsanguinating liver injury

Area of Science:

• Veterinary Surgery
• Surgical Technology

Background:

• Hepatic resections present hemostasis challenges.
• Evaluating novel hemostatic techniques is crucial for improving surgical outcomes.

Purpose of the Study:

• To compare the hemostatic efficacy of the CO2 laser, Bovie electrocautery, and traditional scalpel with ligatures during canine liver surgery.
• To assess postoperative outcomes and laboratory parameters associated with each hemostatic method.

Main Methods:

• Thirty-two dogs underwent partial left lateral hepatic lobectomy following induced injury.
• Hemostasis was achieved using either a CO2 laser, Bovie electrocautery, or scalpel with suture ligatures.
• Postoperative monitoring included mortality rates and comprehensive laboratory evaluations.

Main Results:

• The CO2 laser demonstrated significantly superior hemostasis compared to the Bovie and scalpel methods.
• Postoperative mortality rates were 11% (Bovie), 30% (scalpel), and 23% (laser), with laser-related deaths linked to device bulk.
• No significant differences were observed in most postoperative laboratory parameters (SGOT, LDH, albumin, etc.) between groups, though laser group had lower white blood cell counts.

Conclusions:

• The CO2 laser is an effective tool for achieving hemostasis in hepatic resections, potentially minimizing tissue damage.
• Further research and device refinement are warranted to optimize the clinical application of CO2 laser in liver surgery.