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Ultrasound Evaluation of a Single Treatment

J Drugs Dermatol

. 2020 Jan 1;19(1):28-34.

doi: 10.36849/JDD.2020.4568.

Ultrasound Evaluation of a Single Treatment With a Temperature Controlled Multi-Frequency Monopolar Radio Frequency Device for the Improvement of Localized Adiposity on the Abdomen and Flanks

Amy TaubJames Bartholomeusz

Abstract

BACKGROUND AND OBJECTIVES: Energy modalities used for fat reduction include cryotherapy, focused and unfocused ultrasound, radiofrequency, and laser. Two devices have been proven to reduce fat layer thickness using ultrasound as measurement after a single treatment. We hypothesized that a novel, high frequency monopolar radiofrequency device could increase the fat temperature enough to reduce its thickness as measured by ultrasound, without excessively increasing the temperature of the skin, leading to a safe, tolerable, and clinically relevant reduction of fat. STUDY DESIGN/MATERIALS AND METHODS: A high frequency monopolar radiofrequency platform was used to treat twelve patients on the abdomen or flanks (truSculpt® 3D, Cutera, Brisbane, CA). Each patient received one treatment session, consisting of 15-minute increments for four areas (60 minutes total). Each area (approximately 144 cm2) was treated with a gliding handpiece technique to a skin temperature of 44-45˚C, correlating to in vivo measurements of the subcutaneous layer of >45˚C. Patients were evaluated at eight- and twelve-weeks following treatment. Clinical efficacy was measured using 360˚ positioned clinical photography. Fat layer reduction was measured with ultrasound. Safety was assessed by the treating physician; patient comfort was assessed during treatment via a 10-point pain scale. RESULTS: All patients responded to treatment. Ultrasound measurements indicated mean fat layer reduction of 4.6 mm, which correlated with a 24% reduction in fat layer thickness at 12 weeks. A significant improvement was noted between the 8-week and the 12-week follow up. A high level of inter-patient consistency was achieved with most patients (10/12= 83%) having an average fat thickness reduction of >20%. No adverse events were observed, and pain scores during the treatment session ranged from 2 to 4 out of 10. CONCLUSION: High frequency monopolar radiofrequency device produced consistent and statistically significant fat thickness reduction from a single 60-minute treatment session, with minimal discomfort and no demonstrated side effects. Results are comparable to other hypo- and hyper-thermic fat treatment technologies. KEY WORDS: fat reduction, radiofrequency, monopolar RF, fat thickness reduction, body sculpting J Drugs Dermatol. 2020;19(1):28-34. doi:10.36849/JDD.2020.4568

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