title: Split-face comparison of the erbium micropeel with intense pulsed light.
abstract: BACKGROUND
  A variety of photorejuvenative techniques have been utilized to reverse the signs of cutaneous photoaging, including ablative and nonablative laser resurfacing as well as light-based devices.
  
  
  OBJECTIVE
  The purpose of this split-face randomized prospective open-label trial was to determine the effectiveness of sequential erbium:yttrium-aluminum-garnet (Er:YAG) laser versus intense pulsed light (IPL) for the treatment of mild to moderate facial photodamage.
  
  
  METHODS
  Ten subjects (ages 35-63) with facial dyschromia and rhytides were enrolled. Study patients were randomized to the two treatment arms, Er:YAG (3.8 J/cm(2), 30% pattern overlap, 0% interpulse overlap, 15 microm per pass with no coagulation) and IPL (560-nm filter, 30 J/cm(2), 2.4/4.0-ms pulse with 10-ms delay), each receiving three sequential treatments spaced 1 month apart. Subjective and blinded physician evaluations were performed at baseline and 4, 8, and 20 weeks posttreatment using a nominal scale from 1 to 4. Erythema and adverse events were assessed 1 week following each treatment.
  
  
  RESULTS
  Ten female subjects with mild to moderate facial photodamage were treated with one pass of either IPL or Er:YAG in a split-face fashion. Patients received three treatments each spaced 1 month apart. Nine of 10 patients completed the trial; 1 withdrew due to pain during the second Er:YAG treatment. Baseline subjective and blinded physician dyschromia and rhytid scores revealed no significant difference between the IPL and Er:YAG randomly assigned sides. Up to three IPL or Er:YAG treatments did not result in a significant improvement in rhytid scores. Subjective and blinded physician dyschromia scores improved 26 and 38%, respectively, 3 months after the final IPL treatment, but only by 7 and 29%, respectively, with Er:YAG. Subjective global facial appearance scores worsened by 5% while blinded physician scores improved by 16% 3 months after 3 Er:YAG treatments, but by 28 and 20% for IPL, respectively. The overall incidence of adverse events and subsequent downtime was increased for Er:YAG (1/10 patients experienced hyperpigmentation, 3/10 exfoliation, 1/10 blistering, and 5/10 discomfort) compared to IPL (1/10 exfoliation and 1/10 discomfort), although no permanent side effects were observed with either treatment arm.
  
  
  CONCLUSIONS
  While low-fluence erbium resurfacing has a modest effect on facial photodamage, patients preferred IPL because it resulted in less downtime. The authors have indicated no significant interest with commercial supporters.
authors.affiliation: Department of Dermatology, Stanford University Medical Center, Stanford, California 94305-5334, USA.
authors.forename: Basil M
authors.initials: BM
authors.lastname: Hantash
authors.forename: Ellen
authors.initials: E
authors.lastname: De Coninck
authors.forename: Howard
authors.initials: H
authors.lastname: Liu
authors.forename: Hayes B
authors.initials: HB
authors.lastname: Gladstone
mesh_terms: D000328:Adult; D005145:Face; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D053685:Laser Therapy; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D008875:Middle Aged; D017060:Patient Satisfaction; D011446:Prospective Studies; D019651:Plastic Surgery Procedures; D015595:Skin Aging; D016896:Treatment Outcome