Efficacy of Serial Excisions of Melanocytic Nevi on the Face Using a Carbon Dioxide Laser: A Cosmetic Point of View

2014 ◽  
Vol 38 (2) ◽  
pp. 316-321 ◽  
Author(s):  
Mine Ozaki ◽  
Hirotaka Suga ◽  
Hitomi Eto ◽  
Yoh Kobayashi ◽  
Rei Watanabe ◽  
...  
QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Mohamed Abd Elnaeem Sallam ◽  
Khaled El Zawahry ◽  
Abdul Rahman Muhammed Ali Mustafa

Abstract Background Acne scars, is a challenge for dermatologists, despite having multiple treatment modalities like microneedling, dermabrasion, Fractional CO2 Laser, dermal fillers, etc. However, monotherapy has been hardly satisfactory because of the polymorphism seen with the scars. Objective Comparison between microneedling with platelet rich plasma versus Fractional carbon dioxide laser with platelet rich plasma in treatment of atrophic post acne scars. Patients and methods This study was carried out in department of dermatology, venereology and andrology, in Kobry El-Kobba Military complex during the period (from September 2018 to July 2020 ) on 20 patients of both sexes aged from 20 to 60 years old presenting with Goodman and Baron Grade II, III, IV acne scars . Results The study revealed a statistically significant difference (p = 0.017) between Goodman and Baron scar grades on the right side of the face before and after treatment indicating that microneedling with platelet rich plasma was effective in improving acne scars. Also, there is a statistically significant difference (p = 0.010) between Goodman and Baron scar grades on the left side of the face before and after treatment, indicating that fractional CO2 laser with platelet rich plasma was effective in improving acne scars. Conclusion and recommendation Further controlled and randomized studies are needed to validate our findings in a larger cohort of patients and longer follow up. Also, number of sessions might be more than 3 sessions.


2020 ◽  
pp. 074880682097736
Author(s):  
Nader Gomaa Elmelegy

Congenital melanocytic nevi of the face cause substantial psychological and cosmetic problems in affected patients. The treatment of giant congenital nevi has been a long-standing challenge, but currently, various treatment options, such as cryotherapy, chemical peeling, electrical cautery, laser therapy, and surgery, have been tried for the treatment of congenital melanocytic nevi. In this article, we present our experience and the outcomes of the use of controlled carbon dioxide gas as a cryogen in the treatment of congenital melanocytic nevi. This study included 42 patients with varying sizes of congenital melanocytic nevi seen from January 2014 to April 2019. Cryocarboxy surgery was performed in all cases. The average evaluation score of our patients was excellent in 28 (66.6%) cases, good in 9 (21.4%) cases, satisfactory in 5 (12%) cases, and we had no poor results. Cryocarboxy surgery is a good addition to the armamentarium for the treatment of congenital melanocytic nevi. Carbon dioxide is a cheap, non-explosive, and readily available gas.


1997 ◽  
Vol 9 (1) ◽  
pp. 49-63
Author(s):  
Kenneth S. Rotskoff ◽  
Roy D. Bedrock

Author(s):  
K. C. Tsou ◽  
J. Morris ◽  
P. Shawaluk ◽  
B. Stuck ◽  
E. Beatrice

While much is known regarding the effect of lasers on the retina, little study has been done on the effect of lasers on cornea, because of the limitation of the size of the material. Using a combination of electron microscope and several newly developed cytochemical methods, the effect of laser can now be studied on eye for the purpose of correlating functional and morphological damage. The present paper illustrates such study with CO2 laser on Rhesus monkey.


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