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Updated: Nov 6, 2025
Demonstration of the Rat Ischemic Skin Wound Model
Published on: April 1, 2015
Using Waterless Alcohol-based Antiseptic for Skin Preparation and Active Thermal Support in Laboratory Rats
F Claire Hankenson1, Joshua J Kim2, Thien M Le3
1Campus Animal Resources, Center for Statistical Training and Consulting, Michigan State University, East Lansing, Michigan; College of Veterinary Medicine, Center for Statistical Training and Consulting, Michigan State University, East Lansing, Michigan;,
Waterless alcohol-based antiseptic effectively reduces bacteria on rat skin before surgery. While warming methods did not significantly alter recovery from anesthesia, heavier male rats showed faster recovery, suggesting further research into thermal interventions for rat surgery is warranted.
Area of Science:
- Veterinary Surgery
- Laboratory Animal Science
- Surgical Antiseptics
Background:
- Rats are increasingly used in preclinical research, particularly for neurologic, cardiovascular, and behavioral studies.
- Surgical procedures in rats often require meticulous head and neck preparation for instrumentation.
- Improving surgical outcomes and anesthetic recovery in rats is crucial for research reliability.
Purpose of the Study:
- To evaluate the efficacy of a waterless alcohol-based (WAB) antiseptic for skin disinfection in rats.
- To assess the impact of active warming interventions on perioperative body temperature and anesthetic recovery in rats.
- To investigate factors influencing anesthetic recovery time in rats.
Main Methods:
- Rats underwent surgical preparation using WAB antiseptic.
- Thermal interventions included prewarming cages and warmed fluid (NaCl) supplementation.
- Core body temperatures were monitored, and aerobic cultures were collected from surgical sites.
- Anesthetic recovery times were assessed, noting differences based on sex and weight.
Main Results:
- WAB antiseptic effectively reduced bacterial counts on rat skin, similar to findings in mice.
- No significant differences in intraoperative body temperature were observed between control and warmed groups.
- Heavier male rats demonstrated faster recovery from isoflurane anesthesia compared to lighter males and females.
- Animals warmed for 30 minutes showed a trend towards faster return to the righting reflex.
Conclusions:
- Waterless alcohol-based antiseptic is a suitable option for skin preparation in rat surgery.
- Current active warming strategies did not significantly improve anesthetic recovery times in this study.
- Further investigation into thermal interventions may be beneficial for optimizing rat surgical outcomes and recovery.
