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Related Experiment Videos

Temporal brow lift using botulinum toxin A.

M S Ahn1, M Catten, C S Maas

  • 1Division of Facial Plastic Surgery at the University of California at San Francisco, USA.

Plastic and Reconstructive Surgery
|March 21, 2000
PubMed
Summary

Botulinum toxin A injections targeting brow depressors effectively elevate the brow. This non-surgical approach offers a potential alternative for cosmetic brow lift procedures.

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Area of Science:

  • Facial Plastic Surgery
  • Ophthalmology
  • Cosmetic Dermatology

Background:

  • Non-surgical brow elevation is a common cosmetic goal.
  • Botulinum toxin A is widely used for dynamic wrinkle reduction.
  • Understanding its effect on static brow position is clinically relevant.

Purpose of the Study:

  • To investigate brow elevation following botulinum toxin A injection into brow depressor muscles.
  • To evaluate the efficacy of this method as a potential alternative to surgical brow lift.

Main Methods:

  • Prospective case series of 22 patients seeking cosmetic enhancement.
  • Injections of 7-10 units of botulinum toxin A into the lateral orbicularis oculi bilaterally.
  • Pre- and post-treatment measurements of brow height at 2 weeks.

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Main Results:

  • Significant average brow elevation of 1.02 mm from midpupil (p=0.038).
  • Significant average brow elevation of 4.83 mm from lateral canthus (p<0.0001).
  • No adverse effects reported, all patients completed the study.

Conclusions:

  • Paralysis of brow depressors with botulinum toxin A causes significant brow elevation.
  • This minimally invasive technique may serve as an alternative to surgical brow elevation.
  • Further studies could explore optimal dosing and longevity.