Division of Speech Pathology, School of Health & Rehabilitation Sciences, The University of Queensland, Brisbane, Queensland, Australia.
Head Neck. 2011 Jan;33(1):13-9. doi: 10.1002/hed.21389.
The objective of this study was to determine if the design enhancements incorporated into the new Provox Vega Indwelling Voice prostheses result in any positive benefits in vivo.
Using a randomized, crossover study design, 31 participants using tracheoesophageal speech postlaryngectomy completed a 3-week trial of the Provox Vega and a comparator device. Main outcome measures included patient perceptions of vocal effort and quality using each device, and perceptual judgments of voice quality produced.
The majority of patients (72%) indicated the Provox Vega gave them overall better voice quality and 52% felt they required less effort to phonate. Voice samples produced with the Provox Vega were also perceived by listeners to be significantly (p < .05) less strained, easier to understand, produced with less effort, and the better speech sample overall.
Results support that the aerodynamic improvements incorporated in the design of the new Provox Vega facilitate enhanced voice and speech qualities.
本研究旨在确定新的 Provox Vega 留置式嗓音假体中纳入的设计改进是否在体内产生任何积极的益处。
采用随机交叉研究设计，31 名喉切除术后使用气管食管语音的参与者完成了为期 3 周的 Provox Vega 和比较器设备试验。主要结局指标包括患者对使用每种设备的发声努力和质量的感知，以及对产生的语音质量的感知判断。
大多数患者（72%）表示 Provox Vega 总体上给他们的声音质量更好，52%的患者感觉发音所需的努力更小。听众认为 Provox Vega 产生的语音样本明显（p<.05）更不紧张、更容易理解、发音更省力，整体上是更好的语音样本。
结果支持新 Provox Vega 设计中纳入的空气动力学改进有助于改善嗓音和言语质量。
