Benoy Jesnu Jose, Jayakumar Thirunavukkarasu
Department of Speech-Language Sciences, All India Institute of Speech and Hearing, University of Mysore, Manasagangothri, Mysuru, Karnataka 570006 India.
Indian J Otolaryngol Head Neck Surg. 2024 Dec;76(6):5285-5292. doi: 10.1007/s12070-024-04964-6. Epub 2024 Aug 17.
Primary Muscle Tension Dysphonia (MTD) occurs in the absence of structural or neurologic etiologies. Patients with MTD are frequently encountered in clinics and are evaluated using multiple measures of voice evaluation. Studies reporting on the correlation of multiple measures of voice evaluation among individuals with MTD are minimal, which led to this study. This single-group correlational study involved 48 participants diagnosed with primary MTD at a tertiary care institute. Multidimensional measures of voice (acoustic, aerodynamic, auditory-perceptual, and self-rating) were obtained from the participants. GRBAS scale, Acoustic Voice Quality Index, Acoustic Breathiness Index, Maximum Phonation Duration, S/Z ratio, Voice Handicap Index, and Vocal Fatigue Index were the variables considered. These measures were correlated using Spearman's correlation (ρ) within and between different measures of voice evaluation. Several statistically significant ( < 0.05) correlations were found within and across different measures of voice evaluation. Moderate to very high correlations (ρ between 0.48 and 0.87) were found between auditory-perceptual measures and multiparametric acoustic measures. Weak to moderate correlations (ρ between 0.31 and 0.62) were observed between the VHI and its subsections, with GRBAS, AVQI, and ABI. No statistically significant correlations were observed between aerodynamic measures and other measures of voice evaluation. Results from this study suggest that compared to across measures, the correlation between different variables was stronger within each measure of voice evaluation. These findings highlight the need for a multidimensional voice evaluation in patients with MTD.
原发性肌肉紧张性发声障碍（MTD）在无结构或神经病因的情况下发生。MTD患者在临床中很常见，并且会使用多种嗓音评估方法进行评估。关于MTD患者多种嗓音评估方法之间相关性的研究极少，因此开展了本研究。这项单组相关性研究纳入了一家三级医疗机构中48名被诊断为原发性MTD的参与者。从参与者那里获取了嗓音的多维测量数据（声学、空气动力学、听觉感知和自我评分）。所考虑的变量包括GRBAS量表、声学嗓音质量指数、声学呼吸音指数、最大发声时长、S/Z比值、嗓音障碍指数和嗓音疲劳指数。使用Spearman相关性（ρ）对这些测量数据在不同嗓音评估方法内部和之间进行相关性分析。在不同的嗓音评估方法内部和之间发现了若干具有统计学意义（<0.05）的相关性。在听觉感知测量数据和多参数声学测量数据之间发现了中度到高度的相关性（ρ在0.48至0.87之间）。在嗓音障碍指数及其子部分与GRBAS、声学嗓音质量指数和声学呼吸音指数之间观察到了弱到中度的相关性（ρ在0.31至0.62之间）。在空气动力学测量数据和其他嗓音评估方法之间未观察到具有统计学意义的相关性。本研究结果表明，与不同测量方法之间相比，在每种嗓音评估方法内部不同变量之间的相关性更强。这些发现凸显了对MTD患者进行多维嗓音评估的必要性。
