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. 2012 Jan;38(1):20-7.
doi: 10.1111/j.1524-4725.2011.02158.x. Epub 2011 Sep 14.

Multiple pass ultrasound tightening of skin laxity of the lower face and neck

Hyoun Seung Lee  1 , Woo Sun Jang, Young-Joo Cha, Young-Hwan Choi, Yoonsik Tak, Eenjun Hwang, Beom Joon Kim, Myeung Nam Kim
Affiliations

Multiple pass ultrasound tightening of skin laxity of the lower face and neck

Hyoun Seung Lee et al. Dermatol Surg. 2012 Jan.

Abstract

Background: Skin laxity is a common complaint of patients who request skin rejuvenation. Radiofrequency and infrared light are widely used for nonablative treatment of skin laxity. Intense focused ultrasound (IFUS) has been investigated as a tool for the treatment of solid benign and malignant tumors for many decades but is only now beginning to emerge as a potential noninvasive alternative to conventional nonablative therapy.

Objectives: To evaluate the efficacy of IFUS for the treatment of face and neck laxity.

Methods: Twelve female volunteers were enrolled in the study, and 10 were ultimately evaluated. The device under investigation was an IFUS. Areas treated included the face and neck. For treatment, the 4-MHz, 4.5-mm probe was used first, followed by the 7-MHz, 3.0-mm probe. Two blinded, experienced clinicians evaluated paired pretreatment and post-treatment (day 90) photographs. Patient self-assessments were also obtained.

Results: On the first primary outcome measure, two blinded clinicians felt that 8 of 10 subjects (80%) showed clinical improvement 90 days after treatment. Nine of 10 subjects (90%) reported subjective improvement.

Conclusions: IFUS has many advantages for skin tightening.

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