Laser Treatment of Skin of Color for Medical and Aesthetic Uses With a New 650-Microsecond Nd:YAG 1064nm Laser

April 2019 | Volume 18 | Issue 4 | Supplement Individual Articles | 135 | Copyright © April 2019


Wendy E. Roberts MD,a Michelle Henry MD,b Cheryl Burgess MD,c Nazanin Saedi MD,d Suneel Chilukuri MD,e Dr. Arusha Campbell-Chambers MBBS MScf

aGenerational and Cosmetic Dermatology, Rancho Mirage, CA bLaser & Skin Surgery Center of New York, New York, NY cCenter for Dermatology and Dermatologic Surgery, Washington, DC dDepartment of Dermatology, Thomas Jefferson University, Philadelphia, PA eRefresh Dermatology, Houston, TX fDermatology Solutions, Skin Body & Mind Clinic & Institute, Montego Bay, Jamaica

Table1nitude necessitate continuous cooling of the target skin tissue to minimize pain during treatment and damage to surrounding tissue.10 With the new laser’s 650-microsecond pulse duration, thermal damage to surrounding tissues, scarring, and pigmentary changes are not observed because the 650-microsecond pulse duration is shorter than or equal to the thermal relaxation time of the therapeutic target.The 650-microsecond 1064nm laser is particularly useful in treating dark-skinned patients. Since the pulse duration is shorter than the thermal relaxation time of both the skin and blood vessels, the therapeutic target is heated more rapidly than the rate at which heat is conducted to the surrounding skin, thus lowering the risk of tissue damage and unwanted pigmentary changes.11

CONCLUSION

The 650-microsecond 1064nm laser with a collimated beam, alone or in combination with other therapies, may be used to treat melasma, acne, postinflammatory hyperpigmentation, pseudofolliculitis barbae, acne keloidalis nuchae, and aging skin with unprecedented efficacy and safety in human skin of color, all without the use of skin cooling or anesthetics during treatment. In addition to the unique safety and tolerability associated with treating skin with the 650-microsecond pulse duration, the collimated beam enables treatment from any distance to the skin without affecting the laser fluence, thus enhancing safety and efficacy by eliminating the inherent risk of wide variations in fluence that exist with a divergent or convergent laser beam.

DISCLOSURES

Drs. Roberts, Henry, Burgess, Saedi, and Chilukuri are members of the Medical Advisory Board of Aerolase Corporation. Dr. Campbell-Chambers has no conflicts of interest to disclose.

REFERENCES

  1. Burgess C, Awosika O. Ethnic and gender considerations in the use of facial injectables: African-American patients. Plast Reconstr Surg. 2015;136(5 Suppl):28S-31S.
  2. The American Society for Aesthetic Plastic Surgery. 2016 Cosmetic Surgery National Data Bank Statistics. Economic, Regional and Ethnic Information. Available at: https://www.surgery.org/sites/default/files/ASAPS-Stats2016. pdf. Accessed January 20, 2019.
  3. Lawson CN, Hollinger J, Sethi S, et al. Updates in the understanding and treatments of skin & hair disorders in women of color. Int J Womens Dermatol. 2017;3(1 Suppl):S21-S37.
  4. Roberts WE. The Roberts Skin Type Classification System. J Drugs Dermatol. 2008;7:452-456.
  5. Roberts WE. Skin type classification systems old and new. Dermatol Clin. 2009;27:529-533, viii.
  6. Cook-Bolden F. A novel 0.65 millisecond pulsed 1064nm laser to treat skin of color without skin cooling or anesthetics. J Drugs Dermatol. 2011;10(12 Suppl):S10-S11.
  7. Khatri K., Lee R, Goldberg L., Khatri B, Garcia V. Efficacy and safety of a 0.65 millisecond pulsed portable ND:YAG laser for hair removal. J Cosmet Laser Ther. 2009;11:19–24.
  8. Giambrone D, Ahn C, Rao B. Laser hair removal using a 650 microsecond pulsed ND:YAG laser: a study of 298 patients. J Glob Dermatol. 2014;1(1):9-12.
  9. Hochman LG. Laser treatment of onychomycosis using a novel 0.65-millisecond pulsed Nd: YAG 1064nm laser. J Cosmet Laser Ther. 2011;13:2-5.
  10. Gold MH, Goldberg DJ, Nestor MS. Current treatments of acne: medications, lights, lasers, and a novel 650-μs 1064nm Nd: YAG laser. J Cosmet Dermatol. 2017;16:303-318.
  11. Rose AE, Goldberg DJ. Successful treatment of facial telangiectasias using a micropulse 1,064nm neodymium-doped yttrium aluminum garnet laser. Dermatol Surg. 2013;39:1062-1066.
  12. Henry M. Treatment of Hyperpigmentation on Skin of Color using a 650-Microsecond Pulsed 1064nm Laser. Presented at the American Society of Dermatologic Surgery 2018 in Phoeniz, AZ.
  13. Walsh JT Jr., Flotte TJ, Anderson RR, Deutsch TF. Pulsed CO2 laser tissue ablation: effect of tissue type and pulse duration on thermal damage. Lasers Surg Med. 1988;8:108-118.

AUTHOR CORRESPONDENCE

Wendy E. Roberts MD drwerderm@aol.com