Date of Award
Master of Arts
Speech, Language and Hearing Sciences
Speech Pathology and Audiology
Dr. Robert L. Erickson
Masters Thesis-Open Access
Surveys have shown that the incidence of total laryngectomy, surgical removal of the larynx, has increased steadily in the United States since 1947 when a total of 846 cases were reported (19, 20), to the present time when cancer registries indicate that about 4,400 new cases of cancer of the larynx are discovered annually (13). While it is estimated that in the United States at the present time there are 15,000 to 20,000 individuals who have undergone surgical removal of the larynx due to a carcinomatous condition of that organ (27), it is probable that the total population of laryngectomees would exceed this number if statistical information were available concerning the number of laryngectomies necessitated by accidents, injuries, or other pathological conditions which have been cited as additional causes for excision of the larynx (28).
Carder, Mary Ellen, "An Investigation of the Effect of Auditory and Combined Auditory-Visual Cues Upon Judged Intelligibility of Artificial Larynx Speech and Esophageal Speech" (1964). Master's Theses. 3789.