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Proceedings Paper

Fiber optically guided CO2 laser myringotomy through an otoscope: animal experimentation
Author(s): Ari DeRowe; Dov Ophir; Abraham Katzir
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Paper Abstract

We have developed an otoscope which contains an optical fiber capable of transmitting CO2 laser energy. Such a hand-held unit may prove useful in the treatment of acute otitis media and otitis media with effusion. We used crystalline fibers (0.9 mm diameter) capable of transmitting CO2 laser energy. Four guinea pigs were anaesthetized. In one ear a laser myringotomy was performed using 7.5 watts for 0.1 seconds. The diameter of the myringotomy was 1.5 mm. In the other ear a similar conventional myringotomy was performed. After three weeks three laser and three conventional myringotomies were closed. On the average conventional myringotomies closed 50% sooner than laser myringotomies. Temporal bones from three guinea pigs were removed and sectioned according to accepted methods. No histological differences were found between ears. This experiment has proven the feasibility of using an otoscope for fiberoptically guided CO2 laser myringotomy.

Paper Details

Date Published: 1 August 1992
PDF: 5 pages
Proc. SPIE 1649, Optical Fibers in Medicine VII, (1 August 1992); doi: 10.1117/12.60243
Show Author Affiliations
Ari DeRowe, Meir Hospital (Israel)
Dov Ophir, Meir Hospital (Israel)
Abraham Katzir, Tel Aviv Univ. (Israel)

Published in SPIE Proceedings Vol. 1649:
Optical Fibers in Medicine VII
Abraham Katzir, Editor(s)

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