Comparison of hair removal efficacy and side effect of neodymium:Yttrium‐aluminum‐garnet laser and intense pulsed light systems (18‐month follow‐up)

Szima, Georgina Zita; Janka, Eszter Anna; Kovács, A; Bortély, Blanka; Bodnár, Edina; Sawhney, Irina; Szabó, Éva; Remenyik, Éva

doi:10.1111/jocd.12312

Cited by 16 publications

(6 citation statements)

References 27 publications

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“…All studies comparing IPL and Nd:YAG systems in terms of pain have used therapies for purposes of epilation. However, since the systems used differ, it is not possible to perform any direct comparison between them, although, in contrast to our findings, studies have generally reported that IPL systems caused less pain than Nd:YAG procedures [37][38][39][40][41] . Goh CL reported that patients described a prolonged burning sensation with the IPL system, but a transient stinging sensation with Nd:YAG 41 .…”

Section: Discussioncontrasting

confidence: 99%

The first-year experience of a university hospital laser unit

Arıca¹,

Selçuk²,

Yayli³

et al. 2019

TURKDERM

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Background and Design: The aim of this study was to evaluate the efficacy and safety of neodymium-doped yttrium aluminum garnet (Nd:YAG) laser and intense pulsed light (IPL) systems, and the variety of indications involved. Materials and Methods: First-year treatments in our clinic were evaluated retrospectively. Results were classified according to improvement rates: <25% as mild improvement; 25-75% as moderate improvement and >75% as excellent improvement. Results: One hundred thirty-three patients aged 3-79 years (mean: 35.91) with 14 different indications were treated. Pigmented lesions were treated with IPL, and vascular lesions with IPL and/or Nd:YAG. Combined therapy with IPL and Nd:YAG at two-week intervals resulted in excellent improvement in 70.21% of vascular lesions (34 rosacea, 8 nevus flammeus, and 5 hemangioma), and moderate improvement in the rest. Telangiectasia and angiomatous lesions exhibited excellent improvement in 93.65% of patients with Nd:YAG, and moderate improvement in the rest. IPL resulted in excellent improvement in 78.49% of cases of solar lentigo, and moderate improvement in the rest. Moderate improvement was observed in 66.67% of patients with melasma using IPL, and mild improvement in the rest. Pain scores were significantly lower with Nd:YAG than IPL (p<0.05). Complications related to treatment were observed in 3 patients (vesicles in two patients and atrophic scar in 1), all of which developed after Nd:YAG laser application. Conclusion: Nd:YAG and IPL were successful with very low side-effect rates in a wide range of indications. Our study is the first evaluation of the efficacy of Nd:YAG and IPL combination therapy applied at 2-week intervals, and high efficiency was observed with no increase in any complication rate by intermittently combining different wavelengths.

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Section: Discussioncontrasting

confidence: 99%

The first-year experience of a university hospital laser unit

Arıca¹,

Selçuk²,

Yayli³

et al. 2019

TURKDERM

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“…All studies comparing IPL and Nd:YAG systems in terms of pain have used therapies for purposes of epilation. However, since the systems used differ it is not possible to perform any direct comparison between them, although, in contrast to our findings, studies have generally reported that IPL systems cause less pain than Nd:YAG procedures [37][38][39][40][41] . Goh CL reported that patients described a prolonged burning sensation with the IPL system, but a transient stinging sensation with Nd:YAG 41 .…”

Section: Discussioncontrasting

confidence: 99%

The first-year experience of a university hospital laser unit

Arıca¹,

Selçuk²,

Yaylı³

et al. 2019

TURKDERM

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Çalışmamızda Neodymium: yttrium-aluminium-garnet (Nd: YAG) lazer ve yoğun atımlı ışık (Intense pulsed light, IPL) sistemlerinin etkinlik ve güvenilirliğini belirlemenin yanı sıra endikasyon çeşitliliğinin değerlendirilmesi amaçlandı. Gereç ve Yöntem: Kliniğimizde ilk bir yılda yapılan uygulamalar retrospektif olarak değerlendirildi. Tedavi sonuçları elde edilen düzelme oranlarına göre; %0-25 hafif, %25-75orta ve %75'den fazla çok iyi düzelme olarak sınıflandırıldı. Bulgular: 14 farklı endikasyonda, toplam 133 hastaya tedavi uygulandı. Hastaların yaşları 3 ile 79 arasında değişmekteydi (ortalama 35.91). Pigmente lezyonların tamamına IPL, vasküler lezyonlara ise IPL ve/veya Nd: YAG tedavisi uygulandı. İki hafta arayla IPL ve Nd: YAG tedavilerinin kombine uygulandığı vasküler lezyonlarda (34 rozase, 8 nevus flammeus, 5 hemanjiom) %70.21 oranında çok iyi düzelme, geri kalanında da orta derecede düzelme elde edildi. Telanjiektaziler ve anjiomatöz lezyonlarda Nd: YAG lazer tedavisi %93.65 oranında çok iyi, geri kalanında orta derecede düzelme ile sonuçlandı. Solar lentigolarda IPL ile %78.49 oranında çok iyi, geri kalanında orta derecede düzelme saptandı. Melasmada ise IPL ile %66.67 oranında orta derecede düzelme gözlenirken, geri kalanında düzelme hafif derecede kaldı. Nd: YAG lazerde ağrı skoru, IPL'e göre anlamlı derecede düşük bulundu (p<0.05). Tedaviye bağlı komplikasyon gelişimi sadece üç hastada (iki hastada vezikül, bir hastada atrofik skar) gözlendi, bunların üçü de Nd: YAG lazer uygulama sonrası gelişmişti. Sonuç: Nd: YAG ve IPL tedavileri, geniş bir endikasyon alanında, oldukça düşük komplikasyon oranlarıyla başarılı bulunmuştur. Çalışmamızda iki hafta arayla uygulanan Nd: YAG ve IPL kombinasyon tedavisinin etkinliği ilk kez değerlendirilmiş, bu şekilde farklı dalga boylarının aralıklı kombine edilmesiyle yüksek etkinlik izlenirken komplikasyon oranında herhangi bir artış saptanmamıştır.

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“…The theory states that the pulse duration should be equal or shorter to the thermal relaxation time (TRT) of the hair shaft in order to be effective in hair follicle destruction. The TRT of the hair shaft is estimated to be between 10 and 100 ms 11,12 so, the most commonly used Nd:YAG hair removal pulse duration ranges between 15 and 50 ms with fluences between 25 and 70 J/cm 2 using 6–20 mm spot size 3,7,13–15 . Recent studies showed that shorter Nd:YAG pulses with pulse width of 0.6–3.5 ms are also effective in hair reduction, while maintaining better comfort for the patient.…”

Section: Introductionmentioning

confidence: 99%

“…The TRT of the hair shaft is estimated to be between 10 and 100 ms 11,12 so, the most commonly used Nd:YAG hair removal pulse duration ranges between 15 and 50 ms with fluences between 25 and 70 J/cm 2 using 6-20 mm spot size. 3,7,[13][14][15] Recent studies showed that shorter Nd:YAG pulses with pulse width of 0.6-3.5 ms are also effective in hair reduction, while maintaining better comfort for the patient. This can be attributed to higher peak power when shorter pulse are used.…”

mentioning

confidence: 99%

Comparison of submillisecond pulse (FRAC3) and long‐pulse 1064 nm Nd:YAG laser hair removal

Chandrashekhar

Shenoy

Lalitha

et al. 2022

J of Cosmetic Dermatology

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Background Laser hair reduction gained popularity in the last decade and is presently the most frequently used long‐term hair removal method. It works on the principle of selective photothermolysis—the laser damages the hair follicle without damaging the skin. Shorter Nd:YAG pulses are also effective in hair reduction, while maintaining better comfort for the patient. Aims The aim of this study was to compare the short and long pulsed methods of Nd:YAG for facial hair removal on darker Fitzpatrick skin types (IV–V). Patients/Methods This prospective split face, evaluator‐blinded comparison of short‐pulse Nd:YAG laser versus long‐pulse Nd:YAG laser study included 10 untanned healthy women. There were two outcome measers, two blinded dermatologists compared baseline photographs with those taken 3 months after last session and FotoFinder was used to compare the terminal hair count reduction at the baseline and 3 months after 6th session. Results Both blinded assesors observed significant hair reduction with both lasers; excellent results were achieved in 20% with long pulse and in 55% with short pulse. Both treatment options showed reduction in number of terminal hair with statistical significance using FotoFinder. Comparison of the efficacy of the two pulse durations measured by percent reduction in the number of terminal hair 3 months after the last session showed no significant difference between the groups. Conclusion Hair reduction using 1064 nm Nd:YAG is a safe and effective method of hair reduction especially in darker skin types. We have shown that short pulses are better or at least equally safe and effective as the “gold standard” long pulses.

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Comparison of hair removal efficacy and side effect of neodymium:Yttrium‐aluminum‐garnet laser and intense pulsed light systems (18‐month follow‐up)

Abstract: Unwanted hair can be reduced by both systems safely and effectively; however, IPL has less side effects and higher satisfaction scores.

Cited by 16 publications

References 27 publications

The first-year experience of a university hospital laser unit

The first-year experience of a university hospital laser unit

The first-year experience of a university hospital laser unit

Comparison of submillisecond pulse (FRAC3) and long‐pulse 1064 nm Nd:YAG laser hair removal

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