Shaving area of unwanted hair before laser operation is useful in cosmetic procedure: A simulation study

Mustafa, Fatin Hamimi; Jaafar, Mastura

doi:10.1016/j.jssdds.2013.10.001

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…Hair should be shaved prior to LHR to ensure that the melanin of the dermal hair bulb absorbs the laser energy without interference from melanin of hair above the epidermal surface. Shaving hair prior to LHR has been demonstrated to improve the efficacy of laser transmission and the mechanism of selective thermolysis ( 35 ). Any plucking, waxing, electrolysis, or other methods that remove the hair bulb should be avoided for at least 4 weeks before LHR because an intact bulb is the chromophore necessary to achieve selective photothermolysis ( 21 , 36 ).…”

Section: A Proposed Approach For Preoperative Genital Lhrmentioning

confidence: 99%

Laser hair removal for genital gender affirming surgery

Zhang¹,

Garrett²,

Arron³

et al. 2016

Transl. Androl. Urol.

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Genital gender affirming surgery (GAS) involves reconstruction of the genitals to match a patient’s identified sex. The use of hair-bearing flaps in this procedure may result in postoperative intra-vaginal and intra-urethral hair growth and associated complications, including lower satisfaction with genital GAS. Despite the significant increase in genital GAS within the past 50 years, there is limited data regarding hair removal practices in preparation for genital GAS and notable variation in hair removal techniques among dermatologists and other practitioners. We present a literature review, recommendations from our experience, and a practical laser hair removal (LHR) approach to hair removal prior to genital GAS.

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Section: A Proposed Approach For Preoperative Genital Lhrmentioning

confidence: 99%

Laser hair removal for genital gender affirming surgery

Zhang¹,

Garrett²,

Arron³

et al. 2016

Transl. Androl. Urol.

View full text Add to dashboard Cite

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“…These cause image degradation and blurring which reduce the ability to observe the head surface by the camera. In order to obtain a clear image, hair was removed to increase efficacy of light transmission and reflection [36,37]. A folded heating plate was placed under the mouse to keep the body temperature at a constant level of ~34°C and a thermocouple rectal probe (YSI) was inserted to measure core body temperature.…”

Section: Animal and Experimental Protocolmentioning

confidence: 99%

Exploring diazepam’s effect on hemodynamic responses of mouse brain tissue by optical spectroscopic imaging

Abookasis

Shochat

Nesher

et al. 2014

Biomed. Opt. Express

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Abstract:In this study, a simple duel-optical spectroscopic imaging apparatus capable of simultaneously determining relative changes in brain oxy-and deoxy-hemoglobin concentrations was used following administration of the anxiolytic compound diazepam in mice with strong dominant (Dom) and submissive (Sub) behavioral traits. Three month old mice (n = 30) were anesthetized and after 10 min of baseline imaging, diazepam (1.5 mg/kg) was administered and measurements were taken for 80 min. The mouse head was illuminated by white light based LED's and diffused reflected light passing through different channels, consisting of a bandpass filter and a CCD camera, respectively, was collected and analyzed to measure the hemodynamic response. This work's major findings are threefold: first, Dom and Sub animals showed statistically significant differences in hemodynamic response to diazepam administration. Secondly, diazepam was found to more strongly affect the Sub group. Thirdly, different time-series profiles were observed post-injection, which can serve as a possible marker for the groups' differentiation. To the best of our knowledge, this is the first report on the effects of an anxiolytic drug on brain hemodynamic responses in mice using diffused light optical imaging. References and links1. R. C. Kessler, P. Berglund, O. Demler, R. Jin, K. R. Merikangas, and E. E. Walters, "Lifetime prevalence and age-of-onset distributions of DSM-IV disorders in the National Comorbidity Survey Replication," Arch. Gen. Psychiatry 62(6), 593-602 (2005 894-902 (2008). 4. M. T. Berlim, M. P. Fleck, and G. Turecki, "Current trends in the assessment and somatic treatment of resistant/refractory major depression: an overview," Ann. Med. 40(2), 149-159 (2008). 5. C. J. Harmer, G. M. Goodwin, and P. J. Cowen, "Why do antidepressants take so long to work? A cognitive neuropsychological model of antidepressant drug action," Br. Ntziachristos, and B. Chance, "Non-invasive and quantitative near-infrared haemoglobin spectrometry in the piglet brain during hypoxic stress, using a frequency-domain multidistance instrument," Phys. Med. Biol. 46(1), 41-62 (2001).

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Dose‐dependent study of effects of 532‐nm continuous wave laser on rat skin: A mechanistic insight

Bora

Kumar

Prakash

et al. 2019

Journal of Biophotonics

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Visible lasers emitting in the green spectral region are being routinely employed in various medical and defense fields namely treatment of pigmented lesions, tattoo inks, port wine stains, dazzling the target or mob dispersal. Despite their increasing applications, lasers also tend to pose occupational hazards to operators, ancillary personnel, individuals undergoing laser therapies. This study was aimed at investigating the effects of different doses of 532‐nm continuous wave laser on rat skin. The present study demonstrated that higher fluences of 532‐nm continuous wave (CW) laser induces significant tissue damage through induction of tumor necrosis factor‐α, cyclooxygenase‐2, tumor protein (p53), PARP 1, caspase3 which in turn leads to tissue damage and cell death. Furthermore, level of heat shock proteins, pAkt were found up‐regulated as a cope up response to laser‐induced stress. On the basis of the findings, irradiation with 532‐nm CW laser up to 2.5 J/cm2 was found within the safe exposure limits. Thus, it is probably the first attempt to demonstrate the tissue damage induced by 532‐nm CW laser on skin, which may help in choosing safe laser dose for certain skin‐based applications and evolving methods to ameliorate laser‐inflicted injuries.

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Shaving area of unwanted hair before laser operation is useful in cosmetic procedure: A simulation study

Cited by 4 publications

References 20 publications

Laser hair removal for genital gender affirming surgery

Laser hair removal for genital gender affirming surgery

Exploring diazepam’s effect on hemodynamic responses of mouse brain tissue by optical spectroscopic imaging

Dose‐dependent study of effects of 532‐nm continuous wave laser on rat skin: A mechanistic insight

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