The Effect of Astaxanthin on Random Pattern Skin Flaps

Area of Science:

• Regenerative Medicine
• Antioxidant Research
• Surgical Innovation

Background:

• Skin flaps are crucial for reconstructing skin defects.
• Ischemia-reperfusion injury is a significant complication in flap surgery.
• Astaxanthin, a potent antioxidant, is being investigated for its protective effects.

Purpose of the Study:

• To evaluate the efficacy of astaxanthin in preventing ischemia-reperfusion injury in random pattern skin flaps.
• To determine the optimal dosage of astaxanthin for improving skin flap survival.

Main Methods:

• Thirty-two rats underwent random pattern skin flap surgery and were divided into four groups.
• Groups received varying oral doses of astaxanthin (1, 4, or 16 mg/kg/day) or a placebo.
• Flap survival, perfusion, and histological parameters were assessed on postoperative day 7.

Main Results:

• Increased astaxanthin dosage correlated with higher flap survival rates and improved perfusion.
• Significant improvements in flap viability and vascular density were observed at doses of 4 mg/kg and 16 mg/kg compared to controls.
• Histological analysis showed enhanced vascularization without significant changes in inflammatory cell infiltration.

Conclusions:

• Oral astaxanthin, particularly at doses exceeding 4 mg/kg, enhances skin flap viability and vascularization.
• Astaxanthin demonstrates potential as an adjunctive therapeutic agent for improving outcomes in flap surgery.
• Further research is warranted to explore clinical applications of astaxanthin in reconstructive surgery.