Vocal Shimmer of the Laryngeal Polyp.

Abstract

1 Pre-operative vocal shimmer were determined in patients scheduled for microlaryngeal surgery. These parameters were retested post-operatively and the comparison of pre-and post-operative results was found to afford an objective means by which to gauze the extent of recovery of the patient's vocal function. Advances in the techniques of phonosurgery have facilitated the approach to the etiology of lesions. The objective assessment of the voice before and after operation is thought to be indispensable to a proper evaluation of the operation. For a number of years we have been applying several tests for the pre-and post-operative evaluation of patients receiving phonosurgery. These include (1) aerodynamic analysis with a pneumotachograph or a spirometer, (2) acoustic analysis with a sonagraph or more recently with a digital computer, (3) stroboscopic examination of the vibrating vocal cords. In auther's previous article vocal shimmer was compared in normal and pathologic larynges. In this study vocal shimmer was analyzed pre- and post-operatively, in order to learn the usefulness of this parameter in evaluation of phonosurgery.