scholarly journals An Analysis on Aerodynamic and Acoustic Changes After Thyroidectomy

2016 ◽  
Vol 101 (5-6) ◽  
pp. 233-240 ◽  
Author(s):  
Beyhan Yılmaz ◽  
Salih Bakır ◽  
Edip Erdal Yılmaz ◽  
Engin Şengül ◽  
Ömer Uslukaya ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Malignant Tumors ◽  
Laryngeal Nerve ◽  
Benign Tumors ◽  
Acoustic Parameters ◽  
Tumor Patients ◽  
Maximum Phonation Time ◽  
Voice Changes ◽  
Laryngeal Nerve Injury ◽  
The Voice

The purpose of this study was to investigate the aerodynamic and acoustic changes after thyroidectomy without laryngeal nerve injury by using objective methods. Voice samples of sustained /α/ recorded from 44 adults preoperatively and nearly 1 week and 3 months after thyroidectomy were analyzed for mean vocal fundamental frequency (Mean Fo, Hz), maximum fundamental frequency (Max Fo, Hz), minimum fundamental frequency (Min Fo, Hz), jitter, shimmer, glottal to noise excitation ratio (GNE), irregularity, noise, overall severity, S time, Z time, S/Z ratio, and maximum phonation time (MPT). Voice samples were analyzed using the lingWAVES software. The comparisons of preoperative and early and late postoperative acoustic parameters revealed significant differences in Mean F0, Max F0, MPT, and S Time between the early and late postoperative periods. The voice changes after thyroidectomy were not affected by age, sex, or surgical procedure, but they differed between the benign and malignant nature of the tumor. Patients with malignant tumors showed a greater decrease in Mean F0 and Max F0 compared with the patients with benign tumors, and this difference was statistically significant. Voice changes may occur after thyroidectomy even in the patients with no evidence of laryngeal nerve damage, and these changes can be assessed with objective measurement methods. This information should be explained to the patients during the preoperative counseling, and proper informed consent is ethically and legally required for all planned thyroidectomies.

scholarly journals Fundamental frequency, phonation maximum time and vocal complaints in morbidly obese women

2014 ◽  
Vol 27 (1) ◽  
pp. 43-46 ◽  
Author(s):  
Lourdes Bernadete Rocha de SOUZA ◽  
Rayane Medeiros PEREIRA ◽  
Marquiony Marques dos SANTOS ◽  
Cynthia Meida de Almeida GODOY
Keyword(s):  
Fundamental Frequency ◽  
Vocal Tract ◽  
Control Group ◽  
Morbidly Obese ◽  
Obese Women ◽  
Obese People ◽  
Maximum Phonation Time ◽  
Significant Difference ◽  
The Voice ◽  
Voice Recording

Background : Obese people have abnormal deposition of fat in the vocal tract that can interfere with the acoustic voice. Aim : To relate the fundamental frequency, the maximum phonation time and voice complaints from a group of morbidly obese women. Methods : Observational, cross-sectional and descriptive study that included 44 morbidly obese women, mean age of 42.45 (±10.31) years old, observational group and 30 women without obesity, control group, with 33.79 (±4.51)years old. The voice recording was done in a quiet environment, on a laptop using the program ANAGRAF acoustic analysis of speech sounds. To extract the values of fundamental frequency the subjects were asked to produce vowel [a] at usual intensity for a period in average of three seconds. After the voice recording, participants were prompted to produce sustained vowel [ a] , [ i] and [ u] at usual intensity and height, using a stopwatch to measure the time that each participant could hold each vowel. Results : The majority, 31(70.5%), had vocal complaints, with a higher percentage for complaints of vocal fatigue 20(64.51%) and voice failures 19(61.29%) followed by dryness of the throat in 15 (48.38%) and effort to speak 13(41.93%). There was no statistically significant difference regarding the mean fundamental frequency of the voice in both groups, but there was significance between the two groups regarding maximum phonation. Conclusion : Increased adipose tissue in the vocal tract interfered in the vocal parameters.

scholarly journals Occurrence of vocal changes in preschoolers with no voice complaints: an auditory-perceptual and acoustic analysis

Revista CEFAC ◽  
2021 ◽  
Vol 23 (2) ◽  
Author(s):  
Gabriela Samanttha Cavalcanti do Nascimento ◽  
Giselle Frutuoso do Nascimento ◽  
Juliana Fernanda Dias da Silva ◽  
Sandro Júnior Henrique Lima ◽  
Zulina Souza de Lira ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Statistical Association ◽  
Acoustic Parameters ◽  
Significance Level ◽  
Perceptual Analysis ◽  
Perceptual Evaluation ◽  
Mild Degree ◽  
Voice Changes ◽  
Perceptual Assessment

ABSTRACT Purpose: to verify, with the auditory-perceptual and acoustic parameters, the occurrence of voice changes in children with no voice complaints, per sex. Methods: the registers of 36 children with no voice complaints, aged 6 to 8 years, of whom 19 were males, were assessed. The databank consisted of the recordings of sustained vowels, sentences, and spontaneous speech. The auditory-perceptual analysis was conducted with the Consensus Auditory-Perceptual Evaluation of Voice, and the acoustic analysis, with VoxMetria. The fundamental frequency, jitter, shimmer, noise, and glottal-to-noise excitation ratio were analyzed. The Mann-Whitney test was applied for numerical variables, and the McNemar test, for the categorical ones, at the p < 0.05 significance level. Results: of the 5 children with mild voice changes, 4 were males. The most frequent resonance deviation was the laryngopharyngeal one. There was no difference between the sexes in the auditory-perceptual findings. The fundamental frequency in the group with changes was lower than that in the group without changes. There was a statistical association between the changes in the auditory-perceptual assessment and the acoustic parameters. Conclusion: voice changes occurred in 13.89% of the studied sample of children with no voice complaints, without differences between the sexes in the auditory-perceptual parameters. Vocal deviations were in a mild degree in all children who had them, the most frequent ones being roughness and breathiness. The fundamental frequency and shimmer were the acoustic parameters whose values most often occurred outside the reference limits, in both genders.

scholarly journals PROFILE OF SINONASAL TUMOR PATIENT IN ADAM MALIK GENERAL HOSPITAL 2016-2018

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Ulfatul Ulya ◽  
Ashri Yudhistira ◽  
Andrina Y.M Rambe ◽  
Yetty Machrina
Keyword(s):  
Malignant Tumors ◽  
Secondary Data ◽  
The Body ◽  
Benign Tumors ◽  
Tumor Patients ◽  
Sinonasal Cancer ◽  
Tumor Patient ◽  
Self Employment ◽  
Statistical Application ◽  
Sinonasal Tumor

Abstract. Sinonasal tumor is a neoplasm that arises from nasal and paranasal sinus tissue. It is rarely found, only <3% of all malignancy in head and neck, and 1% of all malignancy in the body. Although it is rarely found, it can cause serious complication in adult. Unspecific sign and symptoms of sinonasal tumor often make the patients ignore the disease. It leads to the diagnosis of this disease becomes late and the patients come to the doctor in advanced stage. This research was conducted to know about the profile of sinonasal tumor patients in H. Adam Malik Medan Hospital on 2016-2018. The study was a descriptive study with retrospective approach. The data used are secondary data taken from medical records. The data were analyzed using a statistical application programs. Sinonasal tumor patients in RSUP HAM Medan are 158 patients, where 95 patients met the inclusion criteria, consisting of  24 benign tumors (25,3%) and 71 malignant tumors (74,7%). The majority of patients are male (71,6%), and the highest age group in in 51-60 years old (31,6%). The main complaints felt by the patients were nasal symptoms (64,2%), the location of tumors mostly found in nasal cavity (50,5%), the most histopathological type is NKSCC (43,2%), the most occupation is self-employment (26%), and the treatment of the patients are surgery (29,5%). Keyword: Sinonasal Tumor, Profile, Sinonasal Cancer

Acoustic analysis of tracheo-oesophageal versus oesophageal speech

1994 ◽  
Vol 108 (4) ◽  
pp. 325-328 ◽  
Author(s):  
F. Debruyne ◽  
P. Delaere ◽  
J. Wouters ◽  
P. Uwents
Keyword(s):  
Frequency Spectrum ◽  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Respiratory Drive ◽  
Spectral Slope ◽  
Acoustic Parameters ◽  
Vocal Quality ◽  
Vibratory Pattern ◽  
The Voice

AbstractIn order to evaluate the vocal quality of tracheo-oesophageal and oesophageal speech, several objective acoustic parameters were measured in the acoustic waveform (fundamental frequency, waveform perturbation) and in the frequency spectrum (harmonic prominence, spectral slope). Twelve patients using tracheo-oesophageal speech (with the Provox® valve) and 12 patients using oesophageal speech for at least two months, participated.The main results were that tracheo-oesophageal voices more often showed a detectable fundamental frequency, and that this fundamental frequency was fairly stable; there was also a tendency to more clearly defined harmonics in tracheo-oesophageal speech. This suggests a more regular vibratory pattern in the pharyngo-oesophageal segment, due to the more efficient respiratory drive in tracheo-oesophageal speech. So, a better quality of the voice can be expected, in addition to the longer phonation time and higher maximal intensity.

Vocal Function following Hemilaryngectomy

1987 ◽  
Vol 96 (5) ◽  
pp. 586-589 ◽  
Author(s):  
Minoru Hirano ◽  
Shigejiro Kurita ◽  
Hidetaka Matsuoka
Keyword(s):  
Fundamental Frequency ◽  
Vocal Fold ◽  
Skin Flap ◽  
Muscle Flap ◽  
Airflow Rate ◽  
Vocal Function ◽  
Maximum Phonation Time ◽  
The Voice

Vocal function following hemilaryngectomy was investigated in 54 cases in which a superiorly based sternohyoid muscle flap was used for glottic reconstruction. Four types of material were employed for covering the muscle flap: Hypopharyngeal mucosa, lip mucosa, thyroid perichondrium, and island cervical skin flap. The vocal function varied greatly from individual to individual; however, the following tendencies were observed in many cases: 1) the glottis did not close completely; 2) supraglottic structures (false fold, arytenoid region, and epiglottis) were hyperfunctional and vibrated instead of or together with the unaffected vocal fold; 3) vibrations of the laryngeal structures were irregular; 4) maximum phonation time was short; 5) mean airflow rate was high; 6) fundamental frequency and intensity ranges of phonation were limited; 7) the voice was rough, breathy, and/or strained; and 8) cases with poor vocal function were most frequent in the skin flap group and least frequent in the lip mucosa group.

Phonatory Characteristics of Patients Undergoing Thyroidectomy without Laryngeal Nerve Injury

1997 ◽  
Vol 117 (4) ◽  
pp. 399-404 ◽  
Author(s):  
Eugene N. Myers ◽  
Ki Hwan Hong ◽  
Young Ki Kim
Keyword(s):  
Nerve Injury ◽  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Superior Laryngeal Nerve ◽  
Vertical Movement ◽  
Laryngeal Nerve ◽  
Laryngeal Nerves ◽  
Cricothyroid Muscle ◽  
Laryngeal Nerve Injury ◽  
Speaking Fundamental Frequency

Complications that arise after thyroid surgery may be associated with infection, hemorrhage, hormonal problems, and laryngeal nerve injury. Voice alteration after thyroidectomy is usually caused by recurrent or superior laryngeal nerve injury. This voice dysfunction may also be associated with laryngotracheal fixation with impairment of vertical movement or by temporary malfunction of the strap muscles after surgery. In this study, we evaluated the voice function phonetically before and after thyroidectomy in 54 patients, although function of the recurrent and superior laryngeal nerves was normal. During surgery, the superior and recurrent laryngeal nerves were identified and protected, and after surgery electromyographic testing of the cricothyroid muscle was performed. Typical voice symptoms after surgery were easy fatigue during phonation and difficulty with high pitch and singing voice. Acoustic analysis revealed that the phonation time and fundamental frequency were not changed after surgery, but the speaking fundamental frequency, range of speaking fundamental frequency, and vocal range were significantly diminished after surgery. These data allowed us to suggest that the cause of voice dysfunction is not seen in neural lesions, but in a disturbance of the extralaryngeal skeleton. These voice changes emphasize the importance of the extralaryngeal mechanism for pitch control.

Voice changes after thyroidectomy without recurrent laryngeal nerve injury

2004 ◽  
Vol 199 (4) ◽  
pp. 556-560 ◽  
Author(s):  
Diego L. Sinagra ◽  
Manuel R. Montesinos ◽  
Verónica A. Tacchi ◽  
Julio C. Moreno ◽  
Jorge E. Falco ◽  
...  
Keyword(s):  
Recurrent Laryngeal Nerve ◽  
Nerve Injury ◽  
Recurrent Laryngeal Nerve Injury ◽  
Laryngeal Nerve ◽  
Voice Changes ◽  
Laryngeal Nerve Injury
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