As. Dagli et al., QUANTITATIVE-ANALYSIS OF VOICE QUALITY IN EARLY GLOTTIC LARYNGEAL CARCINOMAS TREATED WITH RADIOTHERAPY, European archives of oto-rhino-laryngology, 254(2), 1997, pp. 78-80
The quality of voice after radiotherapy is generally considered to be
better than that after surgery for early glottic (T1a and T1b) carcino
mas. Studies concerning voice quality after radiotherapy are scarce, a
nd results have been contradictory concerning actual normalization of
voice following therapy. This study was designed to compare several vo
ice parameters of patients successfully treated 1-12 years previously
with radiotherapy (5750-7000 cGy) for early glottic carcinoma. Paramet
ers involved an age- and sex-matched control group. Results showed tha
t voice quality following radiotherapy was less than normal for maximu
m vocal intensity, dynamic vocal intensity range, jitter, and mean fun
damental frequency. These findings showed that voice following radioth
erapy could not be considered normal.