Safety and efficacy of a microneedle fractional radiofrequency for facial photoaging / 中华医学美学美容杂志

ABSTRACT

Objective Microneedle fractional radiofrequency (MFR) is a novel method for reju-venation that combines radiofrequency and microneedles .The aim of this study was to evaluate pro-spectively the efficacy and safety of MFR in the treatment of facial photoaging .Methods Between De-cember 2017 and December 2018 ,a total of 24 female subjects with facial photoaging aged 45 to 60 (45 .9 ± 8 .7)years ,the course of 1 to 20 (8 .88 ± 5 .06) years ,were collected from the Department of Dermatology ,Pepole's Hospital of Xinjiang Uygur Autonomous Region .They received 3 treatments at 4-week intervals .Global scores for photoaging (GSP) were evaluated at baseline ,after 1 treatment and 3 treatments respectively .Facial wrinkles ,skin texture ,pigmentation ,telangiectasia ,and skin tightness were evaluated by the 4-point method after 1 treatment and 3 treatments respectively .Visual analogue scale (VAS) was used for self-assessment of pain during treatment .At the third treatment self assessment on the degree of satisfaction with therapeutic effects was conducted in subiects .The adverse reactions were evaluated at every treatment immediately and the third day and seventh day .Results The GSP score of 24 subjects before treatment was (2 .83 ± 0 .92) ,(2 .25 ± 0 .95) after 1 treatment ,and (1 .67 ± 0 .48) after 3 treatments .The difference between before and after 1 treatment was statistically significant (t = 2 .17 , P < 0 .05) ,and between before and after 3 treatments , the difference was statistically significant (t = 5 .52 , P < 0 .05) .There were statistically significant differ-ences in facial wrinkles ,skin texture and skin tightness improvement scores between the first treat-ment and the third treatment (t = 5 .48 ,3 .88 ,5 .46 , P < 0 .05) .There were statistically significant differences in pigmentation and telangiectasia scores between the first treatment and the third treat -ment (t = 2 .46 and 2 .17 ,P < 0 .05) .After the third treatment ,the VAS value was 3 .2 ± 1 .2 ,indica-ting mild to moderate pain .The total satisfactory rate of the 24 subjects was 83 .33％ .The subjects had no adverse reactions .Conclusions MFR can effectively improve the symptoms of facial photoaging without obvious adverse reactions .