Melasma is an acquired disorder of hyperpigmentation affecting millions of individuals worldwide. It is mostly observed in the facial area of darker-complexioned individuals (skin types IV-VI) exposed to intense ultraviolet (UV) radiation 1 and shorter wavelengths of visible light (VL). 2 At least 90% of those affected are women. 1 Melasma is characterized by symmetrically oriented hyperpigmented macules and patches, with varying presentations including blotchy, irregular, arcuate, and polycyclic. 3 One way of dividing the disorder into different subtypes is based on the distribution pattern: centrofacial (the most common), malar, and mandibular. Another division is
Background: Non-ablative fractional laser is an effective modality for the treatment of periorbital wrinkling, one of the earliest signs of skin aging. Thermomechanical fractional injury (TMFI) therapy (Tixel ® , Novoxel ® , Israel) is an innovative technology that is now being used for facial skin rejuvenation. Our study compares the clinical results, side effects, and downtime profile between TMFI treatment and non-ablative fractional 1565 nm laser (ResurFX ® , Lumenis, Israel). METHODS: This was a prospective study of 68 patients (64 women, 4 men) with skin types I-VI in two medical centers (34 from Israel, 34 from the USA) that were randomized to receive either TMFI or NAFL treatment for periorbital wrinkling. Patients received 3-5 treatments, 3-5 weeks apart. Six months after the last treatment, the change in Fitzpatrick Wrinkling Classification System (FWCS) was calculated by three non-involved physicians and compared to pretreatment results. Side effects and downtime profiles were assessed in each group (including VAS pain assessment, time required to refrain from work and social activity, and time required for the resolution of redness, edema, and crusts.) RESULTS: A moderate improvement in periorbital wrinkling was demonstrated in both groups, with an average improvement of 1.6 ± 0.6 in FWCS in the TMFI group and an average improvement of 1.7 ± 0.8 in the NAFL group (p < 0.001). Postprocedural VAS score was 5.86 ± 2.3 in the NAFL group and 4.01 ± 2.6 in the Tixel ® group. Approximately 80% of subjects returned to both work and social activities two days postprocedure. Crusts were reported by 52% of patients in the TMFI group, compared to 16% of patients in the NAFL group more than 48 hours postprocedure (p < 0.05). There were no statistically significant differences in the other parameters between the two groups. CONCLUSION: TMFI is an effective and safe modality for the treatment of periorbital wrinkling, with comparable results to the 1565 nm NAFL.
Background: Pulsed diode array laser systems are utilized extensively for various aesthetic indications such as removal of unwanted hair, treatment of vascular and pigmented lesions, and wrinkle reduction.Objective: The purpose of this study was to report and assess the experience of using a diode laser system delivering pulsed infrared laser light at the near-infrared (NIR) spectrum at wavelengths of 805 and 1060 nm. Methods:The study was a retrospective analysis of treatment outcomes in adult subjects treated at the clinic between January 2017 and April 2018 for wrinkles and pigmentation with a noninvasive aesthetic diode laser system. Subjects were treated at nominal wavelengths of 805 nm for pigmentation and 1060 nm for wrinkles reduction. Improvement in pigmentation and wrinkles, adverse events, and patient tolerability to treatment and satisfaction were evaluated. Results:Of 44 subjects with Fitzpatrick skin types II-IV, eight were treated for pigmentation and 36 for wrinkles. For both treatments, subjects reported tolerable pain levels. All immediate responses resolved within 48 hours post-treatment.Evaluation of treatment outcomes by two blinded evaluators demonstrated significant pigmentation clearance mean of 2.50 ± 0.15, (P < .05) in subjects treated for pigmentation, as well as significant improvement mean of 0.46 ± 0.12 (P = .005) in wrinkles in 13 subjects (41%) whose "before" and "after treatment" photographs were correctly identified by both blinded evaluators. Subjects were satisfied with the treatments. Conclusions:Use of the Diode laser effectively resulted in improvement in pigmentation and wrinkles, while maintaining a high safety profile with limited downtime. K E Y W O R D S diode laser, pigmentation, wrinkles 1 | INTRODUC TI ON Pulsed diode array laser systems deliver noninvasive laser energy in a pulse mode in the near-infrared (NIR) wavelengths, among them 805 and 1060 nm nominal wavelengths. These wavelengths penetrate the human skin to a depth of several milliliters and are absorbed by three chromophores that are abundant in the skin, namely, water, melanin, and hemoglobin. 1 These properties of diode
Background The Chemical Reconstruction of Skin Scars (CROSS) technique was first described in 2002 and has since demonstrated safety and efficacy in multiple studies. We describe the treatment of six patients with a modified version of the CROSS method—the Painting CROSS trichloroacetic acid (TCA) technique. This technique has the advantage of offering even higher tissue selectivity and better control of the scar edges, enhancing both safety and efficacy. Methods We retrospectively evaluated 31 scars of six patients who underwent a single treatment by the Painting CROSS TCA method. A 0.3 ml insulin syringe with a 30‐gauge needle was filled with 0.05 ml of 85% TCA solution and then applied to the scar base with slight pressure until frosting was achieved. Patients were evaluated before and 3 months after treatment for scar volume deficit by a high‐resolution three‐dimensional imaging system. Results The average volume of the 31 scars assessed in our study was 2.71 mm3 before treatment and 1.96 mm3 after treatment. There was a 26.3% average decrease in the volume of the scars after one treatment. Transient mild hyperpigmentation was noted in two patients after the treatment. Conclusion Painting CROSS TCA technique has demonstrated efficacy in the treatment of acne scars after a single treatment.
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