Treatment of telangiectasia on the cheeks with a compact yellow (585 nm) semiconductor laser and a green (532 nm) KTP laser: a randomized double‐blinded split‐face trial

Karppinen, Toni; Kantola, Emmi; Karppinen, Ari; Rantamäki, Antti; Kautiainen, Hannu; Mordon, Serge; Guina, Mircea

doi:10.1002/lsm.23051

Cited by 8 publications

(7 citation statements)

References 16 publications

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“…A Finnish group performed a split-face double-blinded study that compared the treatment efficacy of a 532 nm KTP laser with a new 585 nm laser in the management of cheek telangiectasias, showing similar results with both lasers, although physicians evaluated the KTP-treated side as the most improved. Pain score reported by patients was also higher on the 585 nm laser side [ 42 ]. Similar results were also obtained comparing the KTP laser with the 595 nm laser, showing that the 532 nm laser was slightly more effective but reporting a relatively higher rate of side effects [ 43 ].…”

Section: Discussionmentioning

confidence: 99%

Combination of Specific Vascular Lasers and Vascular Intense Pulsed Light Improves Facial Telangiectasias and Redness

et al. 2022

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Background and objectives: Facial telangiectasias are dilated blood vessels that can represent a cosmetic issue for patients. They may be associated with other conditions, such as rosacea. Laser and light treatments are nowadays becoming a cornerstone in the management of these lesions. Materials and Methods: In total, 68 patients seeking medical treatment for facial telangiectasias were enrolled from 1 March 2019 to 1 March 2020 at the Dermatological Unit of Magna Graecia University (Catanzaro, Italy). A protocol consisting of a 1064 Nd:YAG laser for darker blue telangiectasias and 532 nm Nd:YAG for red lesions followed by intense pulsed light with an optimized spectrum for vascular lesion 3 weeks after the first procedure was proposed. A three-month follow-up visit assessed patient’s satisfaction using a visual analog scale (VAS). Two dermatologists measured clinical results using a 4-point scale, comparing pictures before treatment and at follow-up. Results: A total of 68 patients (32 males and 36 females) completed the study, performing all requested treatments. No severe side effects were reported. Patient satisfaction was very high (8.15 ± 1.05 out of a 10-point VAS scale), as well as dermatologists’ clinical evaluations (2.19 ± 0.74 out of 3). Conclusions: The combination of vascular lasers and Vascular Intense Pulsed Light acting specifically on small blood vessels may help to improve the aesthetic outcome, reducing side effects. A prospective study with a larger number of participants will be necessary to confirm this study’s findings.

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Section: Discussionmentioning

confidence: 99%

Combination of Specific Vascular Lasers and Vascular Intense Pulsed Light Improves Facial Telangiectasias and Redness

et al. 2022

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“…In the case of enlarged blood vessels on the face (facial telangiectasia), both KTP (532 nm) and PDL (585 nm) have been used [2]. Clinical results for these two lasers have turned out to be similar, but the pain level was higher with the yellow laser (PDL) compared to the green one (KTP).…”

Section: Discussionmentioning

confidence: 99%

“…These lesions are found in 0.3% to 0.5% of newborn children [1]. Attempts to treat PWS and enlarged blood vessels on the face and legs [2] with different lasers started in the early 1980s [3]. However, to date, there is no single laser source that has been 100% effective in the treatment of all cases of PWS.…”

Section: Introductionmentioning

confidence: 99%

Blue Laser (450 nm) in the Treatment of Port Wine Stains and Telangiectasia

Szymańczyk

Trzeciakowski

Ivonyak

et al. 2021

JCM

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This study aimed to test a blue light source for the treatment of port wine stains (PWS) and telangiectasia and to compare this with the application of green and yellow lasers based on data in the literature. A total of 22 patients with PWS were treated with radiation from a novel, high-power 450 nm blue laser that was created for this project. The group contained 15 patients with red PWS and 7 with pink PWS. The best results were achieved for red PWS, using 15–20 ms light pulses and 47 W power. For patients with pink malformations, the results were unsatisfactory. The group with telangiectasia consisted of six patients with facial lesions and three with leg lesions. The recovery was completed for all patients with facial telangiectasia, while the blue laser therapy was ineffective for patients with leg telangiectasia. This study shows that, in some cases, the use of a blue laser may be an alternative to the use of green and yellow lasers.

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“…In medicine, yellow laser emission has the highest ratio of oxyhemoglobin absorption versus melanin absorption, reducing the laser power needed for macular photocoagulation treatments in a 30–40% in comparison with green lasers and thus decreasing the risk of retinal damage . Yellow lasers have also proven their advantageous potential in skin therapies, such as treatment of vascular lesions, among others …”

Section: Introductionmentioning

confidence: 99%

“…[3] Yellow lasers have also proven their advantageous potential in skin therapies, such as treatment of vascular lesions, among others. [4] Despite the rapid progress in laser research in the past nearly 60 years, up to now there is no convincing simple and easy to handle solution to generate continuous-wave (cw) laser emission in the yellow spectral range. The most straightforward approach to generate laser emission relies on electrically pumped semiconductor materials.…”

Section: Introductionmentioning

confidence: 99%

Diode‐Pumped Laser Operation of Tb³⁺:LiLuF₄ in the Green and Yellow Spectral Range

Castellano‐Hernández

Kalusniak

Metz

et al. 2020

Laser & Photonics Reviews

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Here, a diode‐pumped laser based on trivalent terbium (Tb3+) as the active ion is reported. Optical pumping of a Tb3+‐doped lithium‐lutetium‐fluoride (LiLuF4) crystal with up to 200 mW from a diode laser emitting at a wavelength of 488.2 nm enables continuous‐wave lasing directly in the green and in the yellow. At an emission wavelength of 542 nm, the laser reaches an output power of up to 43.8 mW with a high slope efficiency of 52% with respect to the absorbed pump power. The yellow laser at 587 nm exhibits a slope efficiency of 22% and the output power of 13.8 mW is only limited by the available pump power. Laser thresholds as low as 14 and 27 mW of absorbed pump power are observed for the green and yellow, respectively. The investigations toward further optimization of the laser performance reveal that highly Tb3+‐doped materials are suitable for compact, efficient, and affordable diode‐pumped solid‐state lasers with direct emission in the visible spectral range. These results are of high relevance, as in particular for the yellow spectral range such systems are currently not available.

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Treatment of telangiectasia on the cheeks with a compact yellow (585 nm) semiconductor laser and a green (532 nm) KTP laser: a randomized double‐blinded split‐face trial

Abstract: Conclusions:The investigational PhotoLase laser enables significantly faster treatments, but the process is somewhat more painful than with KTP, otherwise providing a similar clinical outcome in the treatment of facial telangiectasia. Treatment Protocol Lasers Surg. Med. 51:223-229, 2019.

Cited by 8 publications

References 16 publications

Combination of Specific Vascular Lasers and Vascular Intense Pulsed Light Improves Facial Telangiectasias and Redness

Combination of Specific Vascular Lasers and Vascular Intense Pulsed Light Improves Facial Telangiectasias and Redness

Blue Laser (450 nm) in the Treatment of Port Wine Stains and Telangiectasia

Diode‐Pumped Laser Operation of Tb³⁺:LiLuF₄ in the Green and Yellow Spectral Range

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Treatment of telangiectasia on the cheeks with a compact yellow (585 nm) semiconductor laser and a green (532 nm) KTP laser: a randomized double‐blinded split‐face trial

Abstract: Conclusions:The investigational PhotoLase laser enables significantly faster treatments, but the process is somewhat more painful than with KTP, otherwise providing a similar clinical outcome in the treatment of facial telangiectasia. Treatment Protocol Lasers Surg. Med. 51:223-229, 2019.

Cited by 8 publications

References 16 publications

Combination of Specific Vascular Lasers and Vascular Intense Pulsed Light Improves Facial Telangiectasias and Redness

Combination of Specific Vascular Lasers and Vascular Intense Pulsed Light Improves Facial Telangiectasias and Redness

Blue Laser (450 nm) in the Treatment of Port Wine Stains and Telangiectasia

Diode‐Pumped Laser Operation of Tb3+:LiLuF4 in the Green and Yellow Spectral Range

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Diode‐Pumped Laser Operation of Tb³⁺:LiLuF₄ in the Green and Yellow Spectral Range