Clinical application of 675 nm laser therapy for dorsal hand skin hyperpigmentation

Abstract

BackgroundNoninvasive skin rejuvenation treatment is growing in recognition to aesthetic medicine.AimThe objective of the study was to assess the efficacy and the safety of the 675‐nm laser source treatment of photodamaged hands.Materials and methodsThe study included 21 patients (6 males and 15 females) with a mean age of 63 (± 9) years. Patients were treated with —two to three sessions of the 675‐nm laser with a 1‐month interval between sessions. Photos of each patient were collected at baseline, and 3 months after the last laser session. The 5‐point Global Aesthetic Improvement Scale (GAIS) was recorded with their final assessment session (3 months).ResultsThe total GAIS scores showed satisfactory results: 15 patients (71%) experienced 4 score (excellent improvement) changes and 6 patients (29%) experienced 3 score (good improvement) changes. Clinical images showed good efficacy and visible aesthetic results for the management of photodamaged skin. No serious adverse effects were recorded.ConclusionThis study demonstrates the safety and efficacy of for the aesthetic improvement of skin pigmentation and texture for photodamaged hands.

Q‐Switched 785 nm laser in the treatment of labial melanotic macules

“…Of course, different laser strategies could have been used to target melanin, such as the 675 nm wavelength devices or the 532/1064 nm lasers, that we previously used in other investigations. 8 Nevertheless, in the clinical case presented we decided to have a conservative approach during the treatment, to focus on the melanotic component only and avoid the vascular one. This way, no side effects were registered, and the treatment was almost pain‐free and bearable by the patient.…”

The treatment of melasma with a 785 nm wavelength laser in darker phototypes: An Egyptian experience

“…3 The goal of laser therapy is to target a particular chromophore that absorbs the laser's wavelength in a specific manner while minimising collateral tissue damage, according to the selective photothermolysis theory. 4 Specifically, picosecond lasers use pulse lengths much less than the target's thermal relaxation period to achieve a higher peak temperature without inflicting thermal damage to the surrounding tissues. Because of this, the picosecond 785-nm laser offers a superior safety profile compared to other laser types.…”

Effectiveness, safety, and patient satisfaction of carboxytherapy as an adjunctive treatment for periorbital hyperpigmentation

“…Periorbital hyperpigmentation manifests with one or more of the following features: widespread and concentrated melanin deposits (hyperpigmentation), excessive or superficial subcutaneous vasculature, and shadows resulting from pseudoherniated orbital fat 2 . Additional risk factors include racial, familial, and genetic predispositions to hyperpigmentation, allergic shiners in atopic patients, thin and semi‐transparent skin on the lower eyelids that accentuates the vascular plexus, post‐inflammatory hyperpigmentation following contact dermatitis, sleep disorders, excessive sun exposure, weight loss, addiction, smoking, and certain medications or disorders that mimic the presentations of oculodermal melanocyte or ashy dermatosis 3,4 . Idiopathic periorbital hyperpigmentation has been documented in numerous cases involving diverse skin issues 5 .…”

“… 2 Additional risk factors include racial, familial, and genetic predispositions to hyperpigmentation, allergic shiners in atopic patients, thin and semi‐transparent skin on the lower eyelids that accentuates the vascular plexus, post‐inflammatory hyperpigmentation following contact dermatitis, sleep disorders, excessive sun exposure, weight loss, addiction, smoking, and certain medications or disorders that mimic the presentations of oculodermal melanocyte or ashy dermatosis. 3 , 4 Idiopathic periorbital hyperpigmentation has been documented in numerous cases involving diverse skin issues. 5 The differentiation between pigmentary causes and those associated with vasculature can be achieved through a Wood's lamp examination, utilizing polarized light in patients presenting with periorbital hyperpigmentation.…”