Research Article| Volume 46, ISSUE 3, P247-251, 1993

Clinical experience with the PLDL-1 (Pigmented Lesion Dye Laser) in the treatment of pigmented birthmarks: a preliminary report

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      Twenty patients aged between 2 years and 17 years (mean 9 years) with pigmented birthmarks, mainly of the head and neck, were treated with the PLDL-1 laser (Pigmented Lesion Dye Laser—Candela Corporation, Wayland, Massachusetts, USA) which emits light with a wavelength of 510 nanometers and a pulse duration of 300±50 nano-seconds.
      Nine patients (45%) showed excellent results after a test-patch was performed. Two patients (10%) showed some lightening of colour after initial test-patch. Six patients (30%) showed no improvement and 3 patients (15%) showed some hyperpigmentation at the test-patch sites which had not disappeared at 6 months follow-up.
      There was no change in the clinical behaviour at 6 months follow-up and no evidence of scarring was encountered.


        • Maiman TH
        Stimulated optical radiation in ruby.
        Nature. 1960; 187: 439
        • Anderson RR
        • Parrish JA
        Selective photothermolysis: Precise microsurgery by selective absorption of pulsed radiation.
        Science. 1983; 220: 524
        • Cosman B
        • Apfelberg DB
        • Druker D
        An effective treatment for Ota's naevus.
        Ann Plast Surg. 1989; 22: 36-43
        • Landthaler M
        • Haina D
        • Waidelich W
        • Braun-Falco O
        Argon laser therapy of verrucous nevi.
        Plast Reconstr Surg. 1984; 74: 108-111
        • Nakaoka H
        • Ohtsuka H
        • Miki Y
        The square and uniform intensity ruby laser for the treatment of pigmented skin lesions.
        Eur J Plast Surg. 1992; 15: 23-30