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Speech assessment of patients using three types of indwelling tracheo-oesophageal voice prostheses
Published online by Cambridge University Press: 29 June 2007
Abstract
A multidisciplinary prospective study compared speech acceptability between three types of indwelling tracheo-oesophageal voice prostheses. Twenty male laryngectomees took part over five years, using 42 prostheses. 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 language therapist tended to give higher scores and the patient lower. A relationship was found between patients' ages categorized by decade and the surgeon's score alone. This relationship held for Groningen high resistance and Provox prostheses individually too (p<0.05). The untrained assessed similarly to the professionals – humans are all voice listeners. The analysis suggests surgeons find tracheo-oesophageal speech in older patients better than in younger ones; or make more allowances for the elderly. There was a trend for Provox prostheses to produce the best scores.
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