Method for skin blood flow studies in the pig

Area of Science:

• Physiology
• Surgical Techniques
• Biomedical Engineering

Background:

• Accurate measurement of blood flow is essential for understanding skin physiology and evaluating treatments.
• Existing techniques may have limitations in precision or applicability to specific tissues like porcine skin.

Purpose of the Study:

• To describe a novel quantitative technique for measuring blood flow in porcine skin.
• To emphasize the anatomical considerations, technical preparation, and surgical methodology for successful implementation.

Main Methods:

• Development and application of a quantitative blood flow measurement technique.
• Surgical preparation and cannulation of vessels in porcine skin.
• Baseline recordings of total blood flow and oxygen consumption at a controlled dermal temperature.

Main Results:

• Established baseline total blood flow at 6.6 ± 0.9 cc/100 g/min.
• Determined baseline oxygen consumption at 0.16 ± 0.02 cc/100 g/min at 35°C dermal temperature.
• Achieved a 75% success rate, with primary failure causes being malignant hyperthermia or cannulation difficulties.

Conclusions:

• The described method provides a reliable quantitative assessment of blood flow in porcine skin.
• Understanding potential challenges like malignant hyperthermia is key for successful application of this technique.
• This methodology serves as a valuable tool for preclinical research involving skin perfusion.