A prospective randomized study of 980 nm diode laser-assisted venous ulcer healing on 34 patients.

Venous ulcers are chronic wounds affecting up to 1% of adults in developed countries. Considering that noncontact normothermic therapy has been shown to modify the wound healing process, we conducted a prospective comparative clinical trial aimed at evaluating 980 nm diode laser in laser-assisted venous ulcer healing. Thirty-four Caucasian patients with venous leg ulcers were included in the study and separated into two homogenous groups based on age, sex ratio, size, and etiologies of the ulcers.

[Dermatofibrosarcoma Darier and Ferrand. Immunohistochemistry study of 38 cases. Research on a specific marker].

This is a retrospective pathological and immunohistochemical study of 38 cases of dermatofibrosarcoma protuberans. It is a rare dermal and subcutaneous spindle cell tumor which may be difficult to diagnose. We tested the value of the CD34 antibody and compared this series with 15 fibrous histiocytomas and II neurofibromas.

Relation between skin surface temperature and minimal blanching during argon, Nd-YAG 532, and CW dye 585 laser therapy of port-wine stains.

Laser photocoagulation has proven to be valuable in the treatment of port-wine stains. In this application, the minimal blanching technique is used as an indicator of suitable dosage since it has been demonstrated that the immediate appearance a white mark is required to achieve permanent blanching a few months later. The objective of the investigations undertaken in this study was to correlate the temperature attained at the surface of port-wine stains with immediate blanching, upon irradiation with different laser fluences.

Rationale for automatic scanners in laser treatment of port wine stains.

Laser therapy of port wine stains (PWS) is well established. However, the application of lasers to PWS treatment over the last decade has resulted in the use of many laser systems. The goal of this study is to describe the different laser parameters, treatment techniques, and delivery systems.