Abstract
Objective:
To compare the histological changes occurring after three different treatment modalities for telangiectasias.
Materials and Methods:
Thirty 16-week-old New Zealand white rabbits weighing 2.4–3.1 kg were enrolled in the study. The rabbits were divided into three groups. The group 1 received sclerotherapy, he group 2 received phototherapy, and group 3 received high-power diode laser treatments. All animals were treated on the right dorsal marginal ear vein. Biopsies were taken on days 1, 2, 7, and 30 post-treatment, and histopathogical evaluation was performed.
Results:
Clinical and histological thrombosis occurred between days 1 and 7 in all groups. Superficial necrosis, neutrophil infiltration, and recanalization were mostly seen in group 3, whereas thrombosis was prominent in groups 1 and 2.
Conclusions:
All of the methods tested appear to have similar mechanisms of action, but had differing clinical and histological results. Phototherapy and laser treatment are non-invasive and do not require an exact, pinpoint technique, in contrast to sclerotherapy. However, sclerotherapy and phototherapy showed better results, especially with regard to recanalization.
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