Copper vapour laser treatment of port-wine stains in brown skin

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Copper vapour laser treatment of port-wine stains in brown skin
February 1997
To cite this article: Jin Ho Chung, Woo Seok Koh, Dong Youn Lee, Young Suk Lee, Hee Chul Eun, Jai Il Youn (1997)
Copper vapour laser treatment of port-wine stains in brown skin
Australasian Journal of Dermatology 38 (1), 15Ò21.
doi:10.1111/j.1440-0960.1997.tb01092.x

Jin Ho Chung11Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea, Woo Seok Koh22Department of Dermatology, Inje University College of Medicine, Seoul, Korea, Dong Youn Lee11Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea, Young Suk Lee11Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea, Hee Chul Eun11Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea and Jai Il Youn11Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea1Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea2Department of Dermatology, Inje University College of Medicine, Seoul, Korea
Correspondence: Dr Jin Ho Chung, Department of Dermatology, Seoul National University Hospital, 28 Chongno-Ku, Yunkun-Dong, Seoul 110-744, Korea.
JH Chung, Assistant Professor. WS Koh, Instructor. DY Lee, MD. YS Lee, MD. HC Eun, Professor. JI Youn, Professor.

SUMMARY

Forty-seven Korean patients with port-wine stains were treated with a copper vapour laser and clinical responses were assessed at three months after the last treatment by comparing photographs taken before each treatment The immediate histologic changes within 15min after laser treatment were also observed by routine H & E and nitroblue tetrazolium chloride staining. When we treated port-wine stains with minimal whitening doses of 6-8 J/cm2, no or slight colour changes were obtained. Thus, all port-wine stain lesions in this study were treated with non-specific energy densities ranging from 10-20 J/cm2. Good to excellent results were obtained in 18 (38.2%) of 47 Korean patients with port-wine stains. Repeated treatment can continue to reduce colour. Darker lesions (purple or red) are more likely to result in a marked colour change. At above threshold dose, there was wedge-shaped diffuse coagulation necrosis and loss of viability of the epidermis and underlying dermis. Even though copper vapour laser treatment of port-wine stains in brown skin is not as selective as in white skin because of epidermal melanin, our clinical data demonstrate the usefulness of the copper vapour laser for the treatment of port-wine stains in brown skin.

This article is cited by:
Otavio Macedo & Tina S. Alster. (2000) Laser treatment of darker skin tones: a practical approach. Dermatologic Therapy 13:1, 114Ò126

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