Scar Clinical Trial
Official title:
Comparison Between Effectiveness of Different Densities of Fractional Carbon Dioxide Laser in Treatment of Postburn Scar.
This study aims to compare effectiveness of different densities of carbon dioxide fractional laser in the treatment of postburn scar.
The study included 25 Egyptian patients with burn scars recruited from the Out Patient
Clinic, Dermatology Department, Cairo University. Each has three post burn scars, assigned to
monthly fractional Carbon dioxide laser sessions with a total of 3 sessions. parameters are :
Lesion A or part A parameters: 20 W, 800-1000μs dwell time, 2 to 3 stacks according to scar
thickness, 900µm spacing (7.4% density).
Lesion B or part B parameters: 20 W, 800-1000μs dwell time, 2 to 3 stacks according to scar
thickness, 600µm spacing (12.6% density).
Lesion C or part C parameters: 20 W, 800-1000μs dwell time, 2 to 3 stacks according to scar
thickness, 300 µm spacing (25.6% density).
3 mm punch biopsy is taken before and one month after last session for assessment of collagen
via (Masson's trichrome strain). In addition clinical evaluation is done via Vancouver &
Patient and Observer Scar Assessment Scale .
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