High-Intensity Focused Ultrasonography (I-SHURINK®): A Satisfactory, Non-invasive Procedure for Crow’s Feet Wrinkles
Gyu Sik Jung1 In Kook Cho2 Hyung Min Sung3
1GLAD Plastic Surgery Clinic, Daegu, Korea 2Lavian Plastic Surgery Clinic, Seoul, Korea 3V Plastic Surgery Clinic, Daegu, Korea
Correspondence to: Gyu Sik Jung
GLAD Plastic Surgery Clinic, 31 Dongsung-ro 5-gil, Jung-gu, Daegu 41941, Korea
Tel.: +82-53-710-0103
Fax: +82-53-710-0133
E-mail: jksheart@naver.com
Received: August 4, 2019; Accepted: September 5, 2019; Published online: September 30, 2019.
© Korean Society for Laser Medicine and Surgery. All rights reserved.

Abstract
Background and Objectives
High-intensity focused ultrasonography (HIFU) has been developed as an effective, non-invasive, skin-tightening method in response to the increasing demand for improvements in skin laxity and tightening with minimal risk and recovery time. This study evaluated the efficacy and safety of HIFU for non-invasive skin tightening of crow’s feet wrinkles, with the aim of determining how long the tightening can be main tained.
Materials and Methods
Between January and March 2019, 21 female patients with crow’s feet wrinkles were treated with HIFU. The treatment involved 200 shots, three times every 2 weeks. Three blinded, experienced plastic surgeons and patients evaluated satisfaction at 2 weeks after the first procedure, 2 weeks after the second procedure, 2 weeks after the third procedure, and 6 weeks after the first procedure based on photographs according to the Global Aesthetic Improvement Scale (GAIS). The Friedman test was used to compare data.
Results Of the 21 patients treated using HIFU, one was lost to follow-up for nonstudy-related reasons. Therefore, 20 patients were evaluated and ranged in age from 28 to 48 years. Plastic surgeons’ GAIS scores were 2.6, 2.3, 1.7, and 1.3 and patients’ GAIS scores were 2.6, 2.2, 1.8, and 1.4 at 2 weeks after the first procedure, 2 weeks after the second procedure, 2 weeks after the third procedure, and 6 weeks after the third procedure. No serious adverse effects were observed.
Conclusion
The aging face with crow’s feet wrinkles can be improved by using HIFU, while minimizing epidermal and dermal injury.
Keywords: Skin aging; High-intensity focused ultrasound therapy; Skin wrinkling


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