Madill Catherine, Chacon Antonia, Kirby Evan, Novakovic Daniel, Nguyen Duy Duong
Voice Research Laboratory, Discipline of Speech Pathology, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia.
Faculty of Medicine and Health, Central Clinical School, The University of Sydney, Sydney, NSW 2006, Australia.
J Clin Med. 2021 Sep 14;10(18):4135. doi: 10.3390/jcm10184135.
Although voice therapy is the first line treatment for muscle-tension voice disorders (MTVD), no clinical research has investigated the role of specific active ingredients. This study aimed to evaluate the efficacy of active ingredients in the treatment of MTVD. A retrospective review of a clinical voice database was conducted on 68 MTVD patients who were treated using the optimal phonation task (OPT) and sob voice quality (SVQ), as well as two different processes: task variation and negative practice (NP). Mixed-model analysis was performed on auditory-perceptual and acoustic data from voice recordings at baseline and after each technique. Active ingredients were evaluated using effect sizes. Significant overall treatment effects were observed for the treatment program. Effect sizes ranged from 0.34 (post-NP) to 0.387 (post-SVQ) for overall severity ratings. Effect sizes ranged from 0.237 (post-SVQ) to 0.445 (post-NP) for a smoothed cepstral peak prominence measure. The treatment effects did not depend upon the MTVD type (primary or secondary), treating clinicians, nor the number of sessions and days between sessions. Implementation of individual techniques that promote improved voice quality and processes that support learning resulted in improved habitual voice quality. Both voice techniques and processes can be considered as active ingredients in voice therapy.
尽管嗓音治疗是肌肉紧张性嗓音障碍（MTVD）的一线治疗方法，但尚无临床研究调查特定活性成分的作用。本研究旨在评估活性成分在MTVD治疗中的疗效。对68例接受最佳发声任务（OPT）和抽泣嗓音质量（SVQ）以及两种不同过程（任务变化和消极练习（NP））治疗的MTVD患者的临床嗓音数据库进行了回顾性分析。对基线和每种技术应用后的嗓音录音的听觉感知和声学数据进行了混合模型分析。使用效应量评估活性成分。观察到治疗方案具有显著的总体治疗效果。总体严重程度评分的效应量范围为0.34（NP后）至0.387（SVQ后）。平滑的谐波峰值突出度测量的效应量范围为0.237（SVQ后）至0.445（NP后）。治疗效果不取决于MTVD类型（原发性或继发性）、治疗的临床医生，也不取决于疗程数量和疗程之间的天数。实施促进嗓音质量改善的个体技术以及支持学习的过程可改善习惯性嗓音质量。嗓音技术和过程均可被视为嗓音治疗中的活性成分。
