Side-to-Side Microvascular Anastomosis Using Rat Cervical Vessels.

Area of Science:

• Microsurgery
• Vascular Surgery
• Surgical Education

Background:

• Side-to-side anastomosis presents significant technical challenges due to complex intraluminal suturing.
• Proficiency in this technique requires dedicated practice in microsurgical laboratory settings.
• Developing effective training models is essential for preparing surgeons for clinical application.

Purpose of the Study:

• To describe and evaluate two novel side-to-side microvascular anastomosis training models.
• To utilize readily available rat cervical vessels for realistic surgical simulation.
• To assess the feasibility and efficacy of these models in a preclinical setting.

Main Methods:

• Two models were developed: common carotid artery to common carotid artery (CCA-CCA) and common carotid artery to anterior facial vein (CCA-EJV) anastomosis.
• Key parameters including vessel diameters, clip distances, arteriotomy lengths, and clipping times were meticulously recorded.
• Vascular patency was assessed immediately post-procedure and at a 7-day follow-up interval.

Main Results:

• Vessel diameters ranged from 1.00-1.20 mm for CCAs and 1.40-1.80 mm for the anterior facial vein.
• Mean temporary clipping distances were 6.48 ± 0.66 mm (CCA-CCA) and 8.02 ± 0.45 mm (CCA-EJV).
• Mean vascular temporary clipping times were 40.05 ± 3.92 minutes (CCA-CCA) and 42.50 ± 4.82 minutes (CCA-EJV), with 100% patency rates achieved.

Conclusions:

• The described CCA-CCA and CCA-EJV anastomosis models using rat cervical vessels are feasible.
• These models provide an effective platform for training side-to-side microvascular anastomosis.
• Successful implementation of these models can enhance surgical proficiency and patient outcomes.