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Modulating the Er:YAG laser.

C B Zachary1

  • 1Department of Dermatology, Dermatologic Surgery and Laser Center, UCSF, San Francisco, California 94115, USA.

Lasers in Surgery and Medicine
|February 24, 2000
PubMed
Summary
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New modulated Er:YAG lasers offer improved coagulation and tissue contraction compared to conventional Er:YAG systems. These advanced lasers may provide CO(2) laser-like results with potentially less risk of permanent hypopigmentation.

Area of Science:

  • Dermatology
  • Laser Technology
  • Aesthetic Medicine

Background:

  • Controversy exists regarding the optimal laser for cutaneous resurfacing.
  • Conventional Er:YAG lasers showed limitations in skin tightening and hemostasis compared to CO(2) lasers.
  • New modulated Er:YAG lasers aim to combine Er:YAG advantages with CO(2) laser-like effects.

Purpose of the Study:

  • To evaluate three new modulated Er:YAG laser systems.
  • To compare their efficacy and safety against conventional Er:YAG and CO(2) lasers.
  • To discuss potential benefits for cutaneous resurfacing.

Main Methods:

  • Clinical data collected from the author's and colleagues' experience.
  • Use of three modulated Er:YAG laser types over an 18-month period.

Related Experiment Videos

  • Treatment of patients for cosmetic resurfacing and benign conditions.

    • Main Results:

    • All modulated Er:YAG lasers demonstrated superior coagulation over conventional Er:YAG.
    • Derma-K and Contour Er:YAG achieved CO(2) laser-like tissue contraction/desiccation.
    • Low incidence (2/50 cases) of permanent hypopigmentation with Er:YAG lasers.

    Conclusions:

    • Modulated Er:YAG lasers offer better hemostasis and deeper ablation than conventional Er:YAG.
    • These systems may induce less permanent hypopigmentation than CO(2) lasers.
    • Surgeons satisfied with CO(2) lasers may not need to switch, but modulated Er:YAG presents advantages.