Low-energy CO2 laser intestinal anastomosis: an experimental study

Area of Science:

• Surgical Innovation
• Gastrointestinal Surgery
• Biomedical Engineering

Background:

• Intestinal anastomosis is a critical surgical procedure.
• Conventional suturing techniques can be time-consuming and prone to complications.
• Laser tissue welding presents a potential alternative for tissue approximation.

Purpose of the Study:

• To evaluate the efficacy and safety of low-energy CO2 laser tissue welding for intestinal anastomosis.
• To compare laser welding with conventional suturing in terms of integrity, healing, and procedure time.
• To assess the long-term histological outcomes of laser-welded anastomoses.

Main Methods:

• Intestinal anastomosis was performed in Wistar rats using low-energy CO2 laser tissue welding (n=17).
• Anastomotic integrity was assessed manometrically immediately and 20 days post-surgery.
• A control group underwent conventional interrupted one-layer anastomosis (n=10).
• Histological examinations were conducted up to 90 days post-surgery.

Main Results:

• Laser tissue welding demonstrated significant superiority in intestinal anastomosis integrity compared to conventional suturing.
• The procedure time for laser welding was significantly shorter than for manual suturing.
• Histological examinations revealed complete healing and epithelization at the anastomotic site up to 90 days post-surgery.
• Postoperative courses were uneventful in the laser-welded group.

Conclusions:

• Low-energy CO2 laser tissue welding is a safe and effective method for intestinal anastomosis in rats.
• This technique offers significant advantages over conventional suturing, including improved integrity and reduced procedure time.
• Laser tissue welding promotes excellent long-term healing of intestinal anastomoses.