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Am J Clin Dermatol. 2008;9(1):33-7.

Fractional photothermolysis for the treatment of striae distensae in Asian skin.

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1
Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea.

Abstract

BACKGROUND:

Striae distensae (SD) are dermal scars characterized by linear atrophic depressions. Fractional photothermolysis (FP) is an effective modality for the treatment of cutaneous scars.

OBJECTIVE:

To evaluate the safety and efficacy of FP for the treatment of SD in Asian skin.

METHODS:

Six female volunteers aged between 20 and 35 years with chronic striae albae phase SD on both buttocks were enrolled. SD lesions on the right buttock were irradiated with a 1550-nm FP laser and patients were followed every 4 weeks for a total of 8 weeks. Outcome assessments included serial photographs, erythema index and melanin index tracking, skin elasticity, histologic examination, and the patients' subjective satisfaction scores.

RESULTS:

FP treatment was associated with a substantial improvement in the appearance of SD at 8 weeks post-treatment. The erythema index and melanin index of the treated SD lesions tended to converge with those of the control skin at 4-week follow-up. Skin elasticity was found to be partially normalized after FP. In addition, there was a significant increase in epidermal thickness, collagen, and elastic fiber deposition after FP as demonstrated by histologic examination. Adverse effects of FP included mild and transient pain and hyperpigmentation.

CONCLUSION:

FP can reduce SD by stimulating new collagen and elastic fiber synthesis. In addition, repetitive treatments might constitute an effective approach to improving the treatment of SD.

PMID:
18092841
[Indexed for MEDLINE]
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