One-knot microvascular anastomosis. An experimental study in rats

Area of Science:

• Biomaterials Science
• Surgical Innovation
• Vascular Surgery

Background:

• Microvascular anastomosis is crucial for reconstructive surgery.
• Current techniques can be time-consuming and complex.
• Need for simpler, reliable methods for vascular joining.

Purpose of the Study:

• To evaluate a novel
• one-knot anastomosis
• technique using a biodegradable glutide copolymer splint.
• To assess the efficacy and patency of this new method in a rat model.
• To determine the clinical applicability of this technique for various vascular procedures.

Main Methods:

• Experimental microvascular anastomosis performed on 33 rats.
• Utilized a glutide copolymer (lactide:glycolide, 80:20) as an external pipe-splint.
• Carotid artery and jugular vein were joined using a single-stitch technique over the splint.

Main Results:

• Achieved 100% patency rate at the anastomosed site, confirmed by angiography and surgery.
• Anastomosis procedure time ranged from 5 to 7 minutes.
• Light microscopy revealed no thrombus formation at 1 and 5 weeks post-surgery.

Conclusions:

• The
• one-knot anastomosis
• technique using a glutide copolymer splint is highly effective and rapid.
• The method demonstrates excellent patency and biocompatibility, with no observed thrombus formation.
• This technique holds significant potential for clinical use in extracranial-intracranial bypass, venous sinus reconstruction, and other vascular surgeries.