Akbari Elaheh, Seifpanahi Sadegh, Ghorbani Ali, Izadi Farzad, Torabinezhad Farhad
Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran.
Department of Speech and Language Pathology, School of Rehabilitation Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
Iran J Med Sci. 2018 Mar;43(2):158-163.
Vocal abuse and misuse would result in vocal fold polyp. Certain features define the extent of vocal folds polyp effects on voice acoustic parameters. The present study aimed to define the effects of polyp size on acoustic voice parameters, and compare these parameters in hemorrhagic and non-hemorrhagic polyps.
In the present retrospective study, 28 individuals with hemorrhagic or non-hemorrhagic polyps of the true vocal folds were recruited to investigate acoustic voice parameters of vowel/ æ/ computed by the Praat software. The data were analyzed using the SPSS software, version 17.0. According to the type and size of polyps, mean acoustic differences and correlations were analyzed by the statistical test and Pearson correlation test, respectively; with significance level below 0.05.
The results indicated that jitter and the harmonics-to-noise ratio had a significant positive and negative correlation with the polyp size (P=0.01), respectively. In addition, both mentioned parameters were significantly different between the two types of the investigated polyps.
Both the type and size of polyps have effects on acoustic voice characteristics. In the present study, a novel method to measure polyp size was introduced. Further confirmation of this method as a tool to compare polyp sizes requires additional investigations.
发声滥用和误用会导致声带息肉。某些特征决定了声带息肉对嗓音声学参数影响的程度。本研究旨在确定息肉大小对嗓音声学参数的影响，并比较出血性和非出血性息肉的这些参数。
在本回顾性研究中，招募了28例真性声带出血性或非出血性息肉患者，以研究通过Praat软件计算的元音/æ/的嗓音声学参数。使用SPSS 17.0软件对数据进行分析。根据息肉的类型和大小，分别通过统计学检验和Pearson相关检验分析平均声学差异和相关性；显著性水平低于0.05。
结果表明，基频微扰和嗓音谐波噪声比分别与息肉大小呈显著正相关和负相关（P = 0.01）。此外，上述两个参数在两种研究息肉类型之间存在显著差异。
息肉的类型和大小均对嗓音声学特征有影响。在本研究中，引入了一种测量息肉大小的新方法。作为比较息肉大小的工具，该方法还需要进一步研究加以证实。
