Use of hydrogel pad in laser treatment of tattoos.
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Cold Temperature↗
Biomedical subjects
John Kenealy
Publications and source records attributed to John Kenealy.
Pulsed dye laser and non-ablative wrinkle reduction.
BACKGROUND AND OBJECTIVES: Non-ablative wrinkle reduction is currently an issue, which is being widely discussed in the literature and at academic meetings worldwide. We present the findings of our randomized within patient controlled clinical trial into periorbital wrinkle reduction with a 595 nm pulsed dye laser. STUDY DESIGN/MATERIALS AND METHODS: Twenty-six volunteers, 25 female and 1 male were enrolled into our study. The study was set up as a randomized within patient controlled clinical trial. Subjects received one treatment to the periorbital wrinkles around one eye, using the other as the control. They were then observed at 3 and 6 months post treatment. They then received three treatments spaced 4 weeks apart and were again observed at 3 and 6 months. The author and one blinded assessor reviewed them independently. At the end of the trial a panel of three blinded assessors scored photographs of the subjects independently. The Fitzpatrick wrinkle score was used to score the subjects. All data was subjected to statistical analysis using non-parametric t-tests. RESULTS: Statistical analysis revealed no significant differences in the wrinkle scores of the patients upon completion of the trial protocols. CONCLUSIONS: The 595 nm pulsed dye laser set at 0.5 millisecond pulse width is not an effective means of achieving sub-purpuric non-ablative periorbital wrinkle reduction.
Adult↗
Carbon dioxide laser dermabrasion for giant congenital melanocytic nevi.
The management of giant congenital melanocytic nevi remains controversial. There is a balance to be achieved between minimizing the disfiguring appearance of these lesions, both before and after surgical treatment, and limiting the risk of malignant change. A series of seven patients who were treated in the same manner, with carbon dioxide laser dermabrasion, is presented. It has been 6 years since the first patient was treated in this way, and no cases of recurrence have been observed. This technique enables the removal of all or most of the pigmented lesion, with minimal scarring and without the need for disfiguring skin grafts. It has been well proved that there is an increased risk of malignant changes among patients with these lesions, although the amount of increased risk for the patient is not clear. Evidence from a review of the currently available literature is presented to indicate why this management method, at best, should decrease this risk and, at worst, should make no difference to the overall risk for individual patients.
Adolescent↗