Jm. Heaton et al., SPEECH ASSESSMENT OF PATIENTS USING 3 TYPES OF INDWELLING TRACHEOESOPHAGEAL VOICE PROSTHESES, Journal of Laryngology and Otology, 110(4), 1996, pp. 343-347
A multidisciplinary prospective study compared speech acceptability be
tween three types of indwelling tracheo-oesophageal voice prostheses.
Twenty male laryngectomees took part over five years, using 42 prosthe
ses. Speech was assessed on a discrete scale by trained and untrained
personnel. The majority scored in the mid-range for each assessor. The
kappa coefficient was used to test similarity between assessors, and
for all pairings agreement was significant (p<0.05). The speech and la
nguage therapist tended to give higher scores and the patient lower. A
relationship was found between patients' ages categorized by decade a
nd the surgeon's score alone. This relationship held for Groningen hig
h resistance and Provox prostheses individually too (p<0.05). The untr
ained assessed similarly to the professionals - humans are all voice l
isteners. The analysis suggests surgeons find tracheo-oesophageal spee
ch in older patients better than in younger ones; or make more allowan
ces for the elderly. There was a trend for Provox prostheses to produc
e the best scores.