Seirafi Hassan; Fateh Soheil; Farnaghi Farshad; Ehsani Amir Hooshang; Noormohammadpoor Pedram
Volume 13, Issue 1 , 2010, , Pages 1-5
Abstract
Background: Although cryotherapy is still the first-line therapy for solar lentigines, due to side effects such as post-inflammatory hyperpigmentation (PIH), especially in patients with darker skin types, pigment specific lasers should be considered as initial treatment. The aim of this study was to ...
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Background: Although cryotherapy is still the first-line therapy for solar lentigines, due to side effects such as post-inflammatory hyperpigmentation (PIH), especially in patients with darker skin types, pigment specific lasers should be considered as initial treatment. The aim of this study was to evaluate the efficacy and safety of cryotherapy in comparison with 595-nm pulsed dye laser (PDL) with cutaneous compression in the treatment of solar lentigines. Method: Twenty two patients (skin type II- IV) with facial or hand lentigines completed this study. Lesions of one side of the face or each hand were randomly assigned and treated with either cryotherapy or PDL. Treatments were performed with radiant exposures of 10 J/cm2, 7mm spot size and 1.5ms pulse duration with no epidermal cooling. Photographs were taken before treatment and one month later. The response rate and side effects were compared. Results: PDL was more likely to produce substantial lightening of solar lentigines than cryotherapy, especially in skin types III and IV (n=8, n=9; P0.05). PIH was only seen in the cryotherapy group. PDL group only showed minimal erythema. No purpura was observed. Conclusion: PDL with compression is superior to cryotherapy in the treatment of solar lentigines in darker skin types.
Soheila Taheri; Ali Asilian; Gita Faghihi
Volume 12, Issue 2 , 2009, , Pages 36-41
Abstract
Background: Many efforts are made to find new and more effective treatments for psoriasis. Intralesional 5-Fluorouracil (5-FU) +epinephrine is a cheap option which can be administered with long intervals. The effectiveness of Pulse Dye Laser (PDL) on psoriasis has been already assessed. We decided to ...
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Background: Many efforts are made to find new and more effective treatments for psoriasis. Intralesional 5-Fluorouracil (5-FU) +epinephrine is a cheap option which can be administered with long intervals. The effectiveness of Pulse Dye Laser (PDL) on psoriasis has been already assessed. We decided to evaluate the effectiveness of 5-FU+epinephrine and compare it to betamethasone and PDL.Methods: A group of 22 patients with chronic stable plaque psoriasis were included. Three plaques on each patient were treated with 5- FU+epinephrine, PDL and betamethasone, respectively. Psoriasis Severity Index (PSI) scoring was applied to assess each plaque before treatment and in weeks 2, 4, 6, 12, and 24. Photos of each plaque were taken before treatment and at each treatment and follow-up session. They were finally compared and scored by a dermatologist.Results: Decline in mean Psoriasis Severity Index (PSI) in week 6 (2 weeks after treatment) and in week 24 (the last follow-up session) was statistically significant as compared to baseline in all groups. (P<0.001) The highest decline in mean PSI score was in the 5-FU+epinephrine group while the lowest belonged to the PDL group (80% vs. 27%).The mean period of remission in the 5-FU+epinephrine group was significantly longer in comparison to the two other groups. (P<0.001) In photographic evaluation, the best response was observed in the 5- FU+epinephrine group.Conclusion: 5-FU+epinephrine is a cheap option which can provide a rapid response and long remission .With respect to limited effectiveness, short remission and high cost; PDL dose not seem to be a preferred choice in the treatment of psoriasis.