Laser toning qswitched or picosecond evidence for Hori macules

Abstract summary (English) BACKGROUND: Epidermal growth factor (EGF) may promote wound healing and decrease laser-induced postinflammatory hyperpigmentation (PIH). OBJECTIVES: To evaluate the effectiveness of an EGF-containing cream on PIH, post-laser erythema, and transepidermal water loss (TEWL) after 1,064-nm Q-Switched Nd: YAG laser treatment of Hori's nevus. METHODS: This is a split-face, double-blinded, randomized, controlled study...

Journal Article, Randomized Controlled Trial

Abstract summary (English) BACKGROUND: Whether picosecond lasers outperform Q-switched lasers in treating pigmented lesions has not been clearly evaluated. OBJECTIVE: To compare the efficacy and safety of picosecond and Q-switched lasers in treating epidermal and dermal pigmented lesions in Asians. METHODS: Eight subjects with lentigines and 6 subjects with acquired bilateral nevus of Ota-like macules were enrolled.

Clinical Trial, Phase IV, Comparative Study, Journal Article, Randomized Controlled Trial

Abstract summary (English) BACKGROUND: Post-inflammatory hyperpigmentation (PIH) after laser treatment of Hori nevus remains problematic. Prevention and treatment of PIH have limited success. OBJECTIVE: To study the effects on hyperpigmentation using topical antibiotic alone versus combined antibiotic and betamethasone/valerate after 1064 nm Q-switched Nd:YAG laser treatment of Hori nevus.

Journal Article, Randomized Controlled Trial

Abstract summary (English) BACKGROUND: Q-switched laser treatment for pigment disorders commonly leads to postinflammatory hyperpigmentation (PIH) in Asians. OBJECTIVES: To evaluate the effect of spot size and fluence on Q-switched alexandrite laser (QSAL) treatment for pigmentation in Asians. METHODS: Ten patients with freckles, 18 with lentigines, and 8 with acquired bilateral nevus of Ota-like macules (ABNOM) received 1 session of QSAL...

Comparative Study, Journal Article, Randomized Controlled Trial

Abstract summary (English) OBJECTIVE: To investigate the effect of cold air cooling on the incidence of postinflammatory hyperpigmentation (PIH) after laser treatment in Asian patients. DESIGN: Randomized, controlled, split-face study. SETTING: Skin laser center of a university hospital.

Journal Article, Randomized Controlled Trial

Abstract summary (English) BACKGROUND: Post-laser melasma induction/exacerbation remains a critical challenge in treating acquired bilateral nevus of Ota-like macules (ABNOMs). While laser parameters are well-studied, patient-specific risk factors across evolving therapeutic eras require elucidation. METHODS: This retrospective cohort analyzed 2675 ABNOMs patients treated with Q-switched lasers in two eras: C1 (2010-2013; 1064 nm-only, n =...

Journal Article, Comparative Study

Abstract summary (English) BACKGROUND: Acquired bilateral nevus of Ota-like macules (Hori's nevus) is a common dyschromatosis among Asian women. Q-switched lasers have been used successfully as a treatment modality. OBJECTIVE: The purpose of this study was to compare the efficacy of using the Q-switched 532 nm neodymium:yttrium-aluminum-garnet (Nd:YAG) laser followed by the 1,064 nm laser versus the Q-switched 1,064 nm Nd:YAG laser alone in...

Clinical Trial, Comparative Study, Journal Article, Research Support, Non-U.S. Gov't

Abstract summary (English) Facial melanoses (FM) present complex diagnostic and therapeutic challenges, particularly in the setting of dermal melanocytoses (DM). We present a case that illustrates these challenges as it does not fit within existing classification frameworks. Initially considered as Ota nevus, characterized by blue or dark pigmentation and scleral involvement, histopathological findings suggested acquired bilateral nevus of...

Case Reports, Journal Article

Abstract summary (English) Although ultraviolet (UV) light or exogenous hormones have been associated with the development or exacerbation of melasma, the use of laser as a treatment modality has not been cited as a factor linked to the development of melasma lesions. It is unclear whether epidermal trauma caused by laser or other treatment can lead to the formation of a new melasma lesion. We report on the formation of new melasma lesions in...

Case Reports, Journal Article

Abstract summary (English) Q-switched neodymium-yttrium aluminum-garnet (Q-switched Nd:YAG) laser has been reported as an effective treatment for nevus of Ota and acquired bilateral nevus of Ota-like macules (ABNOM). Data on ectopic Mongolian spots have rarely been reported.The present study was performed to investigate the treatment efficacy of a high-fluence 1064 nm Q-switched Nd:YAG laser without tissue whitening in ectopic Mongolian...

Journal Article