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Q-Switched LASER to treat nevus on the back

Valeria Taborda, dermatologist

Bauru, SP - Brazil

White paper case report described by dermatologist Valeria Taborda, from Bauru, São Paulo, Brazil. Dr. Taborda used the ETHEREA-MX® platform with the ACROMA-QS® handpiece.

Treatment:

ACROMA-QS®: LASER featuring 2 Nd:YAG RODs with wavelengths at 1064 nm and 532 nm.


  • Q-Switched LASERs have been referenced in literature as a tool for the therapeutic approach of several unaesthetic lesions of pigmented origin.


  • By using a short pulse time (nanoseconds), it allows for a light-and-tissue photomechanical interaction, that is, a high-power mechanical disruption of the melanin pigment, but with little thermal damage



  • In the given case, the chosen wavelength of 532 nm allowed treatment of the nevus, even with a progressive decrease in the amount of pigment, up to satisfactory extent.


  • ACROMA-QS® is a LASER that works in QS, with fixed pulse time at 20 ns, thus delivering a great amount of energy in a short period of time (photoacoustic effect). Its spots feature wavelengths at 1064 nm and 532 nm, thus allowing for a greater treatment amplitude. It also features 2 laser RODs for greater power. Recommended for toning, tattoo removal, pigmented lesions and melasma treatments.
Parameters used:

Treatment sessions were carried out, with increased power following lesion whitening:

  • 3 mm spot, 532 nm, 600 mJ, 5 Hz
  • 3 mm spot, 532 nm, 900 mJ, 5 Hz
  • Last sessions: 3 mm spot, 532 nm, 1200 mJ, 5 Hz.
Check out the results:

Img. 1: pre-treatment evaluation.

Img. 2: result after 22 sessions using ACROMA-QS®.

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MKT – SCL – LP MY PRACTICE VALERIA TABORDA – enGN – R1.0 2021