Use of the Q-switched Nd:YAG laser for the treatment of pigmentary disorders in Egyptians

Salem, A.M.; Harras, Mona; Ramadan, Ali; Gamil, Hend; Rahman, Amany Abdul; El-Said, Khalid

doi:10.3109/14764171003706109

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…Nd:YAG and QS ruby lasers have shown promise in treating nevi of Ota and Hori macules, two pigmented lesions that disproportionately affect ethnic groups with darker skin phototypes [ 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 ]. Fluences should be kept to a minimum in darker skin types to reduce the risk of post-inflammatory hyperpigmentation [ 65 , 66 , 67 , 68 ], and a test patch in the covered area may help determine the optimal fluence. Indeed, in our practice, laser treatments are started with a low fluency and gradually increase.…”

Section: Discussionmentioning

confidence: 99%

Efficacy and Safety of Q-Switched 1064/532 nm Nd:YAG Lasers on Benign Hypermelanosis in Dark-Skinned Individuals—A Preliminary Study

Piccolo,

Fusco,

Crisman

et al. 2024

JCM

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Background: Facial hypermelanosis is a major cosmetic issue that causes severe social embarrassment and psychological pain, particularly among Asians and dark-skinned individuals. Aim: This study assesses the safety and effectiveness of Q-switched 1064/532 nm nanosecond/picosecond lasers in removing benign hypermelanosis in dark-skinned individuals, evaluating the possible associated side effects. Material and methods: A total of 30 participants (80% females and 20% males) with Fitzpatrick skin types IV–V–VI who presented superficial benign hypermelanoses on the facial and décolleté area were enrolled. All patients underwent to one to two laser treatment sessions with a 1064/532 nm Q-switched laser system. Three months after the final laser session, results were assessed by comparing before- and after-treatment photos and using a quartile scale for lesion clearance (4-point Investigator Global Assessment scale). Results: All patients observed global improvements in their pigmented lesions: 53% of patients achieved excellent clearance, 30% of patients achieved good to moderate clearance, 10% of patients achieved slight clearance, and 7% of patients did not respond to the therapy. No serious adverse event occurred. Photos showed the clinical improvement achieved at 3 months follow-up. Conclusions: The Q-switched 1064/532 nm laser proved to be a key tool for treating benign hypermelanosis in all skin types, including dark-skinned persons.

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Section: Discussionmentioning

confidence: 99%

Efficacy and Safety of Q-Switched 1064/532 nm Nd:YAG Lasers on Benign Hypermelanosis in Dark-Skinned Individuals—A Preliminary Study

Piccolo,

Fusco,

Crisman

et al. 2024

JCM

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“…All of these leaded to faster wound healing and absence of scar formation. Also, treatment of suchlike lesions with various laser-and light-based systems displayed less satisfactory results, [14][15][16] even with multiple sessions, [17][18][19] and different device combinations. 20 In a study performed on swine tissues, radio-wave surgery revealed less inflammatory response and smaller lateral thermal damage compared with CO 2 laser.…”

Section: Ta B L Ementioning

confidence: 99%

The use of radio‐wave surgery: An underestimated method for small hyperpigmented flat or macular lesions on face

Pekmezci

2022

J of Cosmetic Dermatology

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Humans' demand to look attractive is increasing ever and it is quite usual for individuals to refer to a cosmetic surgery unit for the esthetic removal of nevi and various other benign lesions, including seborrheic keratosis, lentigo simplex, sebaceous hyperplasia, and syringoma. 1,2 There are numerous ways of treating benign lesions; nevertheless, electrosurgery, laser removal, liquid nitrogen, and surgical excision are the main techniques that have been used for this purpose. 2,3 Although choosing the appropriate treatment method is relatively easy and acceptable for papular or protuberant lesions, for small macular lesions that will be removed for cosmetic purposes it may not be so, because they are generally percepted as mild lesions by the patient and she/he usually has the anxiety of final disfigurement which may result esthetically worse than the original one.The main hurdles of cryotherapy and electrosurgery are hypopigmentation and scar depression due to excessive lateral cryodamage and lateral thermal damage, respectively. 2 Unesthetic surgical scar

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“…10 Study done in population similar to ours for various pigmented lesions took one to six sessions for epidermal lesions, four to six sessions for dermal lesions, and two to three sessions for mixed lesions. 11 Thirty four patients (56.7%) showed excellent response, seven patients (11.7%) showed good response, nine patients (15%) showed fair response and 10 (16.6%) showed poor response. These results correspond to our result which showed good response to treatment after fourth treatment session.…”

Section: Nevusmentioning

confidence: 99%

Q-Switched Neodymium-Doped Yttrium Aluminum Garnet Laser Therapy for Pigmented Skin Lesions: Efficacy and Safety

Karn

Amatya

Razouria

et al. 2013

Kathmandu Univ. Med. J.

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BackgroundNepalese population with Fitzpatrick skin types III-V has high prevalence of pigmentary disorders and it is a growing cosmetic concern. Q-Switched NeodymiumDoped Yttrium Aluminum Garnet (QS Nd-YAG) laser is an efficacious tool in the treatment of pigment disorders. ObjectiveTo highlight the efficacy and safety profile of various pigment disorders. MethodsA prospective study done in Dhulikhel Hospital, Kathmandu University Hospital from January 2009 to January 2011. Patients undergoing laser for pigmented skin lesions were followed for response and safety profile. We included total 270 patients in the study with various disorders especially nevus, tattoos and melasma. Settings were repeated at 3-4 weeks interval and response was evaluated on clinical basis. Efficacy was then evaluated according to various parameters. ResultsFor nevus, total 840 treatment sessions had been performed with an average of 6.88 sessions (range 3-11). Nd: YAG laser was very efficacious in removal of blue and black colored tattoos with an average of 7.9 and 9.5 sessions respectively. However, red mixed with blue and or green tattoos were relatively resistant to treatment and required average 10.33 treatment sessions. Melasma and freckles both responded to the therapy but recurrence rate was high. ConclusionOur results indicate that QS Nd: YAG laser is an effective modality for pigment disorders among Nepalese population. Nevus and melasma respond well but recurrence rate of melasma is high. Blue tattoos respond well while mixed colored tattoos are quite resistant to Nd: YAG laser alone. Transient pain and temporary hyperpigmentation are common side effects.

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Use of the Q-switched Nd:YAG laser for the treatment of pigmentary disorders in Egyptians

Abstract: The Q-switched Nd:YAG laser is an effective and safe technique for the treatment of pigmented skin lesions. Adverse hyperpigmentation can occur but is transient.

Cited by 7 publications

References 11 publications

Efficacy and Safety of Q-Switched 1064/532 nm Nd:YAG Lasers on Benign Hypermelanosis in Dark-Skinned Individuals—A Preliminary Study

Efficacy and Safety of Q-Switched 1064/532 nm Nd:YAG Lasers on Benign Hypermelanosis in Dark-Skinned Individuals—A Preliminary Study

The use of radio‐wave surgery: An underestimated method for small hyperpigmented flat or macular lesions on face

Q-Switched Neodymium-Doped Yttrium Aluminum Garnet Laser Therapy for Pigmented Skin Lesions: Efficacy and Safety

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