title: Laser treatment of tattoos in darkly pigmented patients: efficacy and side effects.
abstract: BACKGROUND
  Many modalities for the treatment of tattoos and pigmented lesions produce a greater risk of complications in Fitzpatrick types V and VI skin because of an increased incidence of adverse pigmentary changes and keloidal scarring. In fair-skinned persons Q-switched lasers have proved effective in removing pigmented lesions and tattoos without scarring.
  
  
  OBJECTIVE
  This study was conducted to determine the efficacy and effects of Q-switched lasers on a small series of darkly pigmented patients with tattoos.
  
  
  METHODS
  Four patients of Ethiopian origin with facial and neck tribal tattoos were treated with both the Q-switched ruby and Nd:YAG lasers. One black woman with a multicolored tattoo on the mid chest was treated with the Q-switched ruby laser.
  
  
  RESULTS
  Clearing of all lesions was seen. The treatments did not result in scarring or permanent pigment changes other than the ones intended.
  
  
  CONCLUSIONS
  Our results indicate that in darkly pigmented patients, Q-switched laser treatment of tattoos can be performed successfully. The longer wavelength Q-switched Nd:YAG laser is recommended when removing tattoos in darker complected persons. A test treatment is advised before treatment of large skin areas.
authors.affiliation: Dermatology Laser Center, Massachusetts General Hospital, Boston 02114, USA.
authors.forename: J M
authors.initials: JM
authors.lastname: Grevelink
authors.forename: D
authors.initials: D
authors.lastname: Duke
authors.forename: R L
authors.initials: RL
authors.lastname: van Leeuwen
authors.forename: E
authors.initials: E
authors.lastname: Gonzalez
authors.forename: S D
authors.initials: SD
authors.lastname: DeCoste
authors.forename: R R
authors.initials: RR
authors.lastname: Anderson
mesh_terms: D000328:Adult; D000537:Aluminum Oxide; D000538:Aluminum Silicates; D044383:Black People; D002921:Cicatrix / Q000209:etiology; D005002:Ethiopia; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D007627:Keloid / Q000209:etiology; D053685:Laser Therapy / Q000009:adverse effects; D007834:Lasers / Q000009:adverse effects; D009354:Neodymium; D010859:Pigmentation Disorders / Q000209:etiology / Q000532:radiotherapy / Q000601:surgery; D012307:Risk Factors; D012880:Skin Pigmentation; D013653:Tattooing; D016896:Treatment Outcome; D015019:Yttrium
chemical_list: D000538:Aluminum Silicates; D009354:Neodymium; D015019:Yttrium; D000537:Aluminum Oxide