Further Experience With the Round Window Ultrasonic Technique
- 1 September 1968
- journal article
- research article
- Published by American Medical Association (AMA) in JAMA Otolaryngology–Head & Neck Surgery
- Vol. 88 (3) , 254-257
- https://doi.org/10.1001/archotol.1968.00770010256008
Abstract
THE ROUND window irradiation technique simplifies the ultrasonic treatment of patients suffering from Meniere's disease. In this technique the vestibule and the ampullae of the lateral and superior canals are irradiated with a small dose of ultrasonic energy directed into the vestibule through the round window. The surgical approach is simple and the risk of a facial paralysis is minimised by the low energy requirements. The technique, operative procedure and initial results have been described in a previous communication.1It is now 18 months since the technique was first applied and this paper presents the results which have been obtained in this period. Equipment In the C.A.L. round window ultrasonic generator (Fig 1), the output may be selected from 20 to 70 milliwatts (mw), and a calibrator is included in the instrument. The calibrator consists of a monitoring meter and a small water chamber containing a transducer. For calibration,Keywords
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