Clinical Responses of Flashlamp-Pumped Pulsed Dye Laser(PLTL-1) for Cutaneous Pigmented Lesions

Many conventional modalities such as dermabrasion, depigmenting creams as well as several types of lasers have been used for the treatment of cutaneous pigmented lesions without countable effects.

Flashlamp-pumped pulsed dye laser(PLTL-1) is one of the selective photothermolysis laser. This laser system incorporates two separate lasers, having an emission wave length of 510nm,a pulse duration 400nanoseconds and 5mm spot size, a flashlamp-excited pulsed dye laser is used to treat superficial cutaneous lesions, and flashlamp-excited, Q-switched alexandrite laser(TATULAZR), having an emission wavelength of 755nm, a pulse duration 100nanoseconds and 3mm spot size is designed for the treatment of blue-black tatoos.

Purpose of this study is to evaluate efficacy of PLTL-1 laser for treatment of cutaneous pigmented lesions.

The results were as follows ;

1) Excellent and good responses were observed in nevus spilus, freckles, senile lentiginesand Peutz-Jegher's syndrome.

2) Fair responses were observed in melanocytic nevus, Hocker's nevus.

3) Poor responses were observed in melasma and cafe-au-lait spot.

4) Good to fair responses were observed in nevus of Ota, ABNOM, and tattoos.

5) There were mild complications such as transient hyperpigmentation, transient hypopigmentation and recurrence.