Notes
Slide Show
Outline
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Lasers in Pediatric Dermatology
  • Priniples-physics for non physicists
  • Safety
  • Efficacy
  • Reasonable expectations
  • Limitations
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Spacially and temporally
coherent light source
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Laser nuts and bolts
  • Laser is a painless, inexpensive treatment for whatever ails your skin!   NOT!


  • Discuss risks and benefits-reasonable expectations
  • Careful patient selection
  • Discuss management of pain and down time
  • Discuss limitations of technology
  • Proper consent and photodocumentation
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Yellow Lasers
  • Flash-lamp pumped pulsed tuneable dye laser (PDL)
  • Copper vapor laser (continuous wave)
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PDL
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PDL
  • Active medium-organic dye
  • Output-yellow = 595 nm (576-610)
  • Target-hemoglobin
  • Physics-pulsed (0.5-40 msec)
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PDL targets…
  • Portwine stains
  • Spider angiomas
  • Vascular changes from rosacea, sun, scars
  • Other nevoid vascular anomalies
  • Hereditary hemorrhagic telangiectasia
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Other PDL targets…
  • Common warts
  • Plantar warts
  • Hypertrophic scars
  • Keloids………….NOT


  • Flat warts, desperate warts….maybe
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…pre rx
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…immediately after 3th rx
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…healing after 5 rx’s
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Portwine stain
…pre rx
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…after 6 rx’s
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…portwine stain-test spots….
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…after rx
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…after 3 rx’s
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…portwine stain pre rx
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…after 4 rx’s
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…rosacea pre rx
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…rosacea after 2 rx’s
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Pigmented Lesion Lasers
  • Q-switched ND-YAG-1064 nm (512)
  • Q-switched ruby-694 nm
  • Q-switched alexandrite-755 nm
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tattoo before and after rx
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lentigines before and after rx
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CO2 Laser
  • Active medium-CO2 gas
  • Out put-10,060 nm
  • Absorption-water, glass, plastic
  • Cutting tool-focused
  • Cautery, vaporization-defocused
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CO2 laser of
common
warts !#?