An experimental study of the effect of infection on microvascular anastomosis

Area of Science:

• Vascular surgery
• Infectious disease
• Surgical pathology

Background:

• Microvascular anastomosis patency is crucial for surgical success.
• Bacterial infections can compromise surgical site healing and patency.
• Penicillin-resistant Staphylococcus aureus poses a significant clinical challenge.

Purpose of the Study:

• To investigate the impact of penicillin-resistant Staphylococcus aureus infection on microvascular anastomosis patency.
• To evaluate the histological and ultrastructural changes associated with infection in vascular repairs.

Main Methods:

• An experimental model using rat femoral artery re-anastomosis was established.
• Infection was induced using penicillin-resistant Staphylococcus aureus.
• Patency rates were assessed, alongside histological and Scanning Electron Microscopy (SEM) analyses.

Main Results:

• The presence of Staphylococcus aureus infection did not significantly reduce the patency rate of the rat femoral artery re-anastomosis.
• Histological and SEM studies provided insights into tissue response but did not reveal significant patency compromise due to infection.

Conclusions:

• Microvascular anastomosis in the rat femoral artery model demonstrated resilience to Staphylococcus aureus infection in terms of patency.
• Further studies are warranted to explore the long-term effects and potential sub-clinical impacts of such infections on vascular patency.