嗓音声学分析在全喉切除患者食道语康复实践中的临床研究

目的分析全喉切除患者食道发音的语声学特征，以指导食道语康复实践。方法对30例全喉切除患者进行食道语训练并作嗓音声学分析，以健康男性作对照，同时比较食道发音者训练1个月和6个月的效果。结果食道语训练1个月者与健康男性比较及食道语训练1个月与训练6个月比较，嗓音声学参数基频、振幅、基频微扰、振幅微扰、谐噪比差异均有统计学意义（P〈0．05或P〈0．01）。结论食道语训练1个月的患者食道语声音稳定性差、音调低钝；训练6个月的患者食道语声音稳定性相对较好，音调较清。食道语训练是全喉切除术后患者获得发音的一种重要途径。

Clinic Study of Voice Acoustic Analysis and Esophageal Language Healing of Total Laryngectomy Aphasiac

Objective To analyze the voice acoustic characteristics of patients who have been taken total laryngectomy for guiding the esophageal speech rehabilitation practice access. Methods Thirty esophageal speakers after total laryngectomy took part in the voicee acoustic assessment. The normal group served as comparison under the same condition. We also compared the recovery effect of esophageal speaker after practicing for one month and six months. Results The parameters of voice acoustic, such as fundamental frequency, amplitude,jitter, shimmer and harmonics to noise ratio were significantly different between the group of one month practicing esophageal speakers and normal persons and between the group of six months practicing speakers and one month practicing speakers（P〈0.05 or P〈0.01）. Conclusion Comparison shows the tone of esophageal phonation for one month practicer is low-pitched and the voice quality is poorer,while the normal speaker and six months esophageal speech practicer have clear and well tone. So the esophageal speech rehabilitation practice access maintains the most important method to acquire the laryngeal speech after total laryngectomy.