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Related Experiment Videos

Fiberoptic argon laser stapedotomy: is it safe?

S Gherini1, K L Horn, J B Causse

  • 1Mercy Hospital, Sacramento, California.

The American Journal of Otology
|May 1, 1993
PubMed
Summary

Fiberoptic argon laser handpieces are safe for stapes surgery, showing no significant hearing loss or facial paralysis in over 2200 procedures. Thermal effects are minimal in the vestibule but notable in the laser plume near the facial nerve.

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Area of Science:

  • Otolaryngology
  • Surgical Instrumentation
  • Laser Surgery

Background:

  • Otosclerosis surgery has evolved with advancements in techniques like stapedotomy and instrumentation such as microdrills.
  • The efficacy and safety of fiberoptic argon laser handpieces in laser stapedotomy remain a subject of investigation.

Purpose of the Study:

  • To evaluate the safety and effectiveness of fiberoptic argon laser handpieces in stapes surgery.
  • To assess the thermal effects of argon laser delivery on the inner ear structures and surrounding nerves.

Main Methods:

  • Experimental study using cadaver stapes and a model vestibule to measure thermal effects of argon laser.
  • Analysis of clinical data from over 2200 primary and revision stapedotomies using fiberoptic laser handpieces.

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Main Results:

  • No significant temperature elevations were observed within the model vestibule during laser stapedotomy.
  • Significant temperature elevations were noted within the laser plume at the level of the facial nerve.
  • Over 2200 procedures showed no cases of significant hearing loss or permanent facial paralysis attributed to the laser handpieces.

Conclusions:

  • Fiberoptic argon laser handpieces are considered a safe instrumentation for stapes surgery.
  • Their safety profile is comparable to conventional microsurgical instruments in stapes surgery.
  • While thermal effects near the facial nerve warrant attention, clinical outcomes demonstrate safety.