4.3 Article

Preclinical evaluation for removal of bulging lower eyelid fat using ultrasound-assisted lipolysis on a Yorkshire pig

Journal

SKIN RESEARCH AND TECHNOLOGY
Volume 27, Issue 1, Pages 93-100

Publisher

WILEY
DOI: 10.1111/srt.12916

Keywords

fat bulging; small diameter probe; ultrasound-assisted lipolysis; Yorkshire pig

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The study evaluated the efficacy and safety of treating lower eyelid fat bulging with ultrasound-assisted lipolysis (UAL) on a Yorkshire pig. Treatment with UAL successfully reduced fat bulging and increased collagen contraction, suggesting it may be a beneficial and well-tolerated option.
Purpose The purpose of this study is to evaluate the efficacy and safety of treating lower eyelid fat bulging with ultrasound-assisted lipolysis (UAL) by performing a preclinical evaluation of the procedure on a Yorkshire pig. Methods Two white Yorkshire pigs had lower eyelid fat bulging treated with UAL using a probe with a diameter of 1.0 mm or less. Fourteen days after treatment, we evaluated the changes in fat thickness from ultrasound, changes in skin contour (volume and height) from the Antera 3D (TM), and the disruption of fat cells and changes in collagen synthesis from histological evaluation. Results Fourteen days after treatment, the fat layer was significantly reduced with no damage to the skin surface. The mean change in the subcutaneous fat layer thickness was decreased 1.51-0.75 mm in ultrasound analysis. The skin contour of the treated area also decreased with time from 202.5 to 163.5 mm in mean volume and 0.8111 to 0.646 mm in mean height. Masson's trichrome staining showed that the UAL treatment induced the regeneration and remodeling of collagen. Conclusion The results of this study demonstrate that UAL successfully reduced the bulging lower eyelid fat of a Yorkshire pig and also increased collagen contraction to tighten skin. UAL may be a beneficial and well-tolerated treatment option for lower eyelid fat bulging.

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