Funding sources None.
DERMATOLOGICAL SURGERY AND LASERS
A study of the efficacy of carbon dioxide and pigment-specific lasers in the treatment of medium-sized congenital melanocytic naevi
Article first published online: 11 APR 2011
© 2011 The Authors. BJD © 2011 British Association of Dermatologists
British Journal of Dermatology
Volume 164, Issue 5, pages 1037–1042, May 2011
How to Cite
August, P.J., Ferguson, J.E. and Madan, V. (2011), A study of the efficacy of carbon dioxide and pigment-specific lasers in the treatment of medium-sized congenital melanocytic naevi. British Journal of Dermatology, 164: 1037–1042. doi: 10.1111/j.1365-2133.2011.10236.x
Conflicts of interest None declared.
This study was presented at the British Society of Dermatological Surgery session of the 90th Annual Meeting of the British Association of Dermatologists, Manchester, July 2010.
- Issue published online: 26 APR 2011
- Article first published online: 11 APR 2011
- Accepted manuscript online: 28 JAN 2011 12:29PM EST
- Accepted for publication 24 November 2010
Background Treatment of medium-sized congenital melanocytic naevi (CMN) can be challenging.
Objectives To present the results of treatment of 55 CMN with the carbon dioxide (CO2) and pigment-specific lasers.
Methods CO2 and Q-switched lasers (frequency-doubled Nd:YAG, Nd:YAG and alexandrite) were used to treat 55 CMN. Patients were treated at 3-month intervals until maximum clearance. Clinical response at 3–6 months after final treatment was graded as poor (< 50%), good (50–75%) or excellent (> 75%). Outcomes were evaluated on case note review and questionnaire.
Results Thirty-six of the 55 CMN were macular and 19 were mammillated. Twenty-seven CMN were present on the head and neck. For macular CMN, outcomes were better for truncal CMN. Scarring and pallor were seen in three lower limb macular CMN treated with a CO2 laser. Mammillated CMN on the head and neck showed most improvement. Pigment-specific lasers were of no additional benefit. Repigmentation occurred in 6% of macular and 21% of mammillated CMN. Partial or complete regimentation of CMN was reported by 46% of patients.
Conclusions Compared with macular CMN, mammillated CMN show a marginally better response to laser treatment. CMN on the limbs respond poorly. Pigment-specific lasers do not lighten mammillated CMN. Adverse effects can occur with CO2 laser treatment of macular CMN on lower limbs.