Beneficial Effect of Low Fluence 1,064 nm Q-Switched Neodymium:Yttrium-Aluminum-Garnet Laser in the Treatment of Senile Lentigo

Abstract

BackgroundLow fluence 1,064 nm Q-switched (QS) Neodymium:Yttrium-Aluminum-Garnet (Nd:YAG) laser treatment, also known as laser toning, is widely used for pigmentary disorders. There has been no reliable evaluation of the effect of low fluence 1,064 nm QS Nd:YAG laser for senile lentigo.ObjectiveTo investigate the beneficial effect of low fluence 1,064 nm QS Nd:YAG laser in the treatment of senile lentigo on the face.MethodsA retrospective review was conducted on patients treated only with repetitive low fluence 1,064 nm QS Nd:YAG laser. Among them, 12 patients with multiple senile lentigines before treatment were included. All side effects were recorded to assess the safety of the modality.ResultsMean age was 56.1±7.8 years old and male-to-female ratio was 1:11. Mean treatment fluence was 1.62±0.16 J/cm2 and mean total treatment session was 8.8±2.6. Mean interval period between each session was 28.0±11.4 days and mean treatment session to reach marked and near total improvement was 8.7±2.8. At the final visit, seven of 12 (58.3%) patients reached marked and near total improvement, and three of 12 (25.0%) reached moderate improvement. No side effects occurred.ConclusionRepetitive low fluence 1,064 nm QS Nd:YAG laser treatment may be an effective and safe optional modality for senile lentigo.

Successful Treatment of Riehl's Melanosis With Mid‐Fluence Q‐Switched Nd:YAG 1064‐nm Laser

“…This phenomenon occurs due to inflammation after photothermolysis, which stimulates melanocytes, eventually leading to an increase in melanin pigmentation. Due to these concerns, several studies were conducted to demonstrate the efficacy and safety of the low‐fluence QSNY 1064‐nm laser for the treatment of lentigo and melasma 7,23. Although we used the mid‐fluence QSNY 1064‐nm laser for every patient, we did not observe postinflammatory hyperpigmentation after treatment.…”

Triple Combination Treatment Using Intense Pulsed Light, Picosecond Laser, and Chemical Peels for Photoaging

“…Picosecond lasers were used initially to remove tattoo inks, then for various kinds of benign pigmentary problems. 7 The picosecond laser toning (use of a low fluence 1,064-nm picosecond Nd:YAG laser) shows faster treatment effect, better successful outcomes, and less side effects than Q-switched laser toning. Superficial chemical peels work on the epidermis.…”

Effective removal of solar lentigines by combination of pre– And post–fluorescent light energy treatment with picosecond laser treatment

“…2 Solar/senile lentigines (age spots) are benign hyperpigmented macules typically occurring in elderly individuals. 3 Associated with acute or chronic UV radiation-induced photodamage, they present in areas of high sun exposure, for example, the face and dorsal hands. While not precancerous, these macules are aesthetically displeasing to patients who choose to have them removed.…”