title: A study of multiple full-face treatments with low-energy settings of a 2940-nm Er:YAG fractionated laser.
abstract: OBJECTIVE
  Fractional Er:YAG 2940-nm laser resurfacing is a relatively new approach to the treatment of photodamaged skin. Typically, this approach uses fairly high delivered energies in order to create 'microscopic wounds' of tissue coagulation at various dermal depths. The purpose of this study was to evaluate the efficacy, safety and tolerability of low-energy, multiple-treatment, fractional Er:YAG laser resurfacing for the treatment of photoaged skin.
  
  
  METHODS
  Sixteen subjects with photoaged skin received six, lower-fluence laser treatments with a 2940-nm wavelength Er:YAG laser, using a fractionated handpiece and a maximum energy of 30 mJ per micro-spot. Subject satisfaction, treatment tolerability, and subject outcome assessment were performed.
  
  
  RESULTS
  Of the 12 subjects who completed the trial, all recorded improvement in their treated skin; half reported over 50% improvement. Most patients reported none or only mild stinging and burning during and after treatment. There was no downtime associated with the procedure. No adverse events were reported. Patient satisfaction rates were high.
  
  
  CONCLUSIONS
  Low-energy, multiple treatment, 2940-nm Er:YAG laser resurfacing with this novel device is a safe and well-tolerated method for the treatment of superficial to moderate photoaged skin.
authors.affiliation: Mount Sinai School of Medicine, New York, NY, USA. drdavidgoldberg@skinandlasers.com
authors.forename: David J
authors.initials: DJ
authors.lastname: Goldberg
authors.forename: Mussarrat
authors.initials: M
authors.lastname: Hussain
mesh_terms: D000328:Adult; D003357:Cosmetic Techniques / Q000009:adverse effects; D019583:Dose Fractionation, Radiation; D004890:Erythema / Q000209:etiology; D005145:Face / Q000601:surgery*; D005260:Female; D006801:Humans; D053844:Lasers, Solid-State / Q000009:adverse effects / Q000627:therapeutic use*; D028022:Low-Level Light Therapy / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D011446:Prospective Studies; D012060:Rejuvenation; D015595:Skin Aging; D016896:Treatment Outcome