title: Treatment of periorbital wrinkles with a novel fractional radiofrequency microneedle system in dark-skinned patients.
abstract: BACKGROUND
  Periorbital wrinkles as a result of photoaging are a frequent cosmetic concern. Recently, the fractional radiofrequency microneedle system was introduced as a new device for facial rejuvenation, and it has received much recognition for its unique "deep dermal heating with epidermal sparing" feature.
  
  
  OBJECTIVE
  The purpose of this study was to examine the clinical efficacy and safety of the system for the treatment of periorbital wrinkles in Korean patients.
  
  
  METHODS
  Twenty Korean patients (Fitzpatrick skin Type IV-V) with varying degrees of periorbital wrinkles were enrolled in this study. The patients were treated 3 times at 4-week intervals with the system. Changes in periorbital wrinkling were evaluated by 2 independent experts with digital images of the subjects' faces using a 5-point Wrinkle Assessment Scale. At the end of the study, the patients rated their satisfaction with the overall treatment outcome on a numerical scale.
  
  
  RESULTS
  All patients completed the treatment regimen and were satisfied with the treatment. Most patients improved according to clinical and photographic assessments performed 6 months after the treatment. Two patients (10%) reported mild hyperpigmentation.
  
  
  CONCLUSIONS
  The system may be an effective and safe treatment option for periorbital wrinkles in dark-skinned Korean patients.
authors.affiliation: *CleanUp Dermatologic Clinic, Seoul, Korea; †Department of Dermatology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Seung Jae
authors.initials: SJ
authors.lastname: Lee
authors.forename: Jung-In
authors.initials: JI
authors.lastname: Kim
authors.forename: You Jin
authors.initials: YJ
authors.lastname: Yang
authors.forename: Jae Hui
authors.initials: JH
authors.lastname: Nam
authors.forename: Won-Serk
authors.initials: WS
authors.lastname: Kim
mesh_terms: D000328:Adult; D044466:Asian People / Q000706:statistics & numerical data*; D005143:Eyelids / Q000528:radiation effects*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009339:Needles; D017060:Patient Satisfaction; D011446:Prospective Studies; D061208:Pulsed Radiofrequency Treatment / Q000295:instrumentation* / Q000379:methods; D012060:Rejuvenation; D056910:Republic of Korea / Q000453:epidemiology; D015595:Skin Aging / Q000528:radiation effects*; D012880:Skin Pigmentation; D016896:Treatment Outcome