Abstract
The electromyographic observation was performed on fifty patients suffered from hypertrophy of palatine tonsillectomy. Treating with palatoglossus, the electromyogram showed maximal amplitude of 27 and electric discharge of 46 uv when kept quiet and 3550 cps and discharge of 46-80 uv when pronounced a vowel “A”. With palatopharyngeus it hardly or slightly discharged when kept quiet, while it showed 40-56 cps and discharge of 58120 μV when pronounced. There were encountered no difference between before and after operations. The smaller tonsills extracted showed a marked pathological change as compared with large tonsills, this having no relationship with the electromyographic result. The electromyographic relation seemed not to exist between the degree of injury of two muscles by operation and that of tonsillar hypertrophy. According to the above experiment, the electromyographic results were not affected even if the peritonsillar muscles were more or less injured macroscopically or pathologically. Thus, it would be impossible to study the influence of tonsillectomy on palatoglossus and palatopharygeus by electromyography, and to discuss articulation disorder only from the result thereofor.
