SciELO - Scientific Electronic Library Online

vol.16 issue2Anesthesia model in rabbits for thoracic surgeryRifamycin and peritoneal adhesions induction, in rats author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Acta Cirurgica Brasileira

Print version ISSN 0102-8650On-line version ISSN 1678-2674


NORONHA, Lúcia de et al. Comparative study of alterations found in 2 and 4 Erbium: YAG laser passes in Wistar rats with 0% overlap of spots. Acta Cir. Bras. [online]. 2001, vol.16, n.2, pp.97-102. ISSN 0102-8650.

CO2 lasers has been presented with the purpose of rejuvenating the face by means of resurfacing. Though each laser systems has the same base principle, there is a significant difference among lasers which could result in variations in the clinical and histological effects of the tissue. The Erbium:YAG laser has the characteristic of having the wavelength with 10 times more affinity for water than the CO2 laser. The purpose of this experimental study was to compare the morphometric alterations found in 2 and 4 Erbium:YAG laser passes with 0% overlap of spots. It was evaluated the homogeneity of ablation in length and was used the dorsal skin of 3 living mice. It was selected a control area in each mouse. Finally, in the maximum period of three hours, the skin was resected and sent to histopathology for evaluations proposed. As a result there was more homogeneity in the length of the ablation with 4 passes than with 2 passes. The conclusions of the experiment indicated that the length and homogeneity of the ablation were larger with 4 passes. The use of 0% overlap of spots does not guarantee homogeneity in ablation.

Keywords : Laser; Resurfacing; Erbium.

        · abstract in Portuguese     · text in Portuguese


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License