Comparison of Two Q-Switched Lasers and a Short-Pulse Erbium-Doped Yttrium Aluminum Garnet Laser for Treatment of Cosmetic Tattoos Containing Titanium and Iron in an Animal Model

Abstract

The SP Er:YAG laser was superior to the Q-switched lasers for removing cosmetic tattoos.

Rising Concern over Cosmetic Tattoos

“…Red ink absorbs the 532-nm Nd: YAG laser, and the red and infrared wavelengths of the 755-nm alexandrite and 1,064-nm Nd:YAG lasers are each effective for the treatment of black, blue, and green inks. 51 To preclude paradoxical darkening, alternative treatments may include pulsed CO 2 52 and erbium-doped YAG lasers, 53 which have been shown to be effective in vaporizing red, pink, and flesh-colored cosmetic tattoos. 50 Chemical reduction of ferric oxide to ferrous oxide is thought to be responsible for the potentially permanent darkening of tattoos.…”

Pigmente Lezyonlarda Lazer

“…Bu yapısal özelliklerinden dolayı nanosaniye atım süresine sahip Q-anahtarlı lazerler pigment hedeflerine en spesifik etki eden lazer sistemleridir. Bu sayede pigment parçacıkları termal hasara uğratılırken, çevredeki sağlıklı dokuya minimal hasar verilir 3 . Q-anahtarlı frekansı katlanmış Nd:YAG lazer (Q-anahtarlı FK Nd:YAG lazer) pigmente lezyonlarda kullanılan en kısa dalga boyuna sahip lazer sistemidir.…”

“…lazerdir 3 . Bunlardan dalgaboyu 532 nm olanlar epidermal pigmentleri, 694 ve 755 nm olanlar epidermal ve dermal pigmentleri, 1064 nm olanlar derin dermal pigmentleri hedef alır 4 .…”

“…Son zamanlarda pigment spesifik olmayan CO2 lazer (10600 nm) ve Er:YAG (2940 nm) lazer ablatif özelliklerinden dolayı yüzeysel pigmente lezyonların tedavisinde kullanılmaktadır 5 . Pigmente deri lezyonlarında tedavisinde doğru lazer sistemi, pigmentin türüne (melanin, tatuaj boyası) ve anatomik yerleşimine (epidermal, dermal veya bileşik) göre belirlenmektedir [1][2][3][4][5] .…”

Treatment of cosmetic tattoos with nonablative fractional laser in an animal model: A novel method with histopathologic evidence

“…These pigments turn black by a reduction reaction upon laser excitation 3. Although repeated Q‐switched laser treatments of up to 10–20 sessions can lighten these laser‐darkened tattoos, the prolonged treatment course causes significant distress for both physicians and patients 4, 5. Non‐selective ablative lasers such as carbon dioxide laser and erbium: YAG laser are preferred for treatment‐resistant tattoos.…”