The first experience of using «blue» laser radiation (λ 450 nm) for the layered removal of congenital giant pigmented nevi in children

Congenital giant pigmented nevi (CGPN) are benign formations consisting of melanocyte cells containing the pigment melanin and located in various layers of the skin. CGPN is not only a medical problem, but also causes a violation of social adaptation when localized in open areas of the body. Their removal is accompanied by difficulties in the form of the inapplicability of certain treatment methods or the risk of scarring and functional changes.

 Recently, publications have appeared on the study of the effects of «blue» laser radiation with a wavelength (λ) of 450 nm for use in clinical practice. The problem of the most effective removal of CGPN remains relevant, which requires the research and introduction of new methods of treatment of this pathology in children.

 Purpose. Determination of the possibility of layer-by-layer removal of CGPN with «blue» (λ) 450 nm laser radiation in children.

 Material and methods. The layered removal of the CGPN was carried out with «blue» laser radiation (λ) 450 nm on the Lasermed 10-03 apparatus, Russian Engineering Club LLC (Tula). At the CRIEPST, treatment of various forms of CGPN was carried out in 12 children: 4 patients with a small form, 5 children with an average form and 3 with a truly gigantic form. The children ranged in age from 6 to 18 years old. The localization of CGPN in 5 children was on the face, in 2 on the back, in 2 on the anterior surface of the chest, in 1 patient on the abdominal wall and in 2 children on the lower extremities.

 Results. The final good clinical and aesthetic result was noted in 9 children with small and medium forms of CGPN, a preliminary good clinical and satisfactory aesthetic result in 3 patients with a truly gigantic form at the treatment stage, a bad result was not noted.

Conclusion. The first experience of using «blue» laser radiation with a wavelength (λ) of 450 nm for layered removal of CGPN in children has shown the possibility of its further effective use in the clinical practice of a pediatric surgeon.

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