Evaluation of 4 Presurgical Skin Preparation Methods in Mice

Area of Science:

• Veterinary Medicine
• Surgical Research
• Microbiology

Background:

• Surgical procedures in mice are common in research.
• Effective skin preparation is crucial for surgical antisepsis.
• Limited studies exist on optimal skin preparation techniques for rodent surgery.

Purpose of the Study:

• To evaluate and compare four different skin preparation methods for surgical antisepsis in mice.
• To assess the impact of depilatory agents versus electric clippers combined with different scrubbing solutions on bacterial load and wound healing.

Main Methods:

• Four treatment groups were established: depilatory agent or electric clippers followed by povidone-iodine and either alcohol or saline scrub.
• Bacterial cultures were taken post-hair removal and post-scrubbing to quantify bacterial load reduction.
• Surgical incisions were assessed using ASEPSIS wound scores and histological examination on days 0, 1, and 7.

Main Results:

• No significant differences in bacterial load reduction were found among the four preparation methods.
• ASEPSIS wound scores and histological findings did not differ significantly between treatment groups.
• All tested methods achieved acceptable bacterial load reduction and supported wound healing.

Conclusions:

• The choice between depilatory agents and electric clippers, or between alcohol and saline scrubs, does not impact surgical site antisepsis or healing in mice.
• Standard skin preparation protocols using povidone-iodine are effective for reducing bacterial load and ensuring good surgical outcomes in rodent research.
• Further research could explore long-term effects or specific bacterial challenges, but current methods are adequate for routine use.