Revisiting Sustained Phonation Time of /s/, /z/, and /α/

Gilman, Marina

doi:10.1016/j.jvoice.2020.03.012

Cited by 9 publications

(16 citation statements)

References 21 publications

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“…Although the primary goal was to measure patient reported voice quality and quality of life, it must be noted that we did not correlate these findings with more objective measure such as GRBAS, videostroboscopic findings, or multidimensional voice analysis technology. The value of MPT as a rough measure of glottic competence has been controversial and perhaps not as accurate as full glottic analysis software and other quantitative airflow measures 49 . We certainly acknowledge the lack of a true objective instrument as a limitation in comparison of our study groups.…”

Section: Discussionmentioning

confidence: 92%

Voice outcomes in high‐grade Reinke's edema: Comparing microflap excision and microdebrider surgery

Bentsianov,

Liang,

Bentsianov

2023

Laryngoscope Investig Oto

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ObjectivesPatients presenting with hoarseness and diagnosed with high‐grade Reinke's edema (RE) will often require surgical intervention for polypoid changes of the true vocal folds. We compared patient outcomes in patients who had microflap or microdebrider excision surgeries.MethodsPatients with the diagnosis of grade II or grade III RE based on laryngoscopy or videostroboscopy who failed conservative management underwent surgery using the standard excision practice of the primary surgeon. Voice outcomes were compared using VHI‐30 (Voice Handicap Index), V‐RQOL (Voice‐Related Quality of Life), and MPT (maximum phonation time) preoperatively and at 1‐month and 6‐months postoperatively.ResultsOf the 115 patients included, there were 46 RE grade II patients and 69 RE grade III patients with 52 patient undergoing microflap surgery and 63 patients undergoing microdebrider surgery. Both procedures resulted in significant improvement in VHI‐30, V‐RQOL, and MPT at 1‐month and 6‐months postoperatively. The microdebrider group had better 6‐month VHI scores (40.84) than the microflap group (44.54) (CI −7.27 to −0.12). The microdebrider group also had better 6‐month V‐RQOL measures (62.56) than the microflap group (57.79) (CI 0.38–9.16).ConclusionBoth microflap excision and microdebrider excision for high‐grade RE lesions resulted in significant improvement in VHI‐30, V‐RQOL, and MPT at 1‐month and 6‐months postoperatively with the microdebrider excision group scoring statistically significantly better at 6 months in comparison to the microflap group. Overall, the results support the use of both surgical modalities for treating high‐grade RE patients.Level of evidence3.

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Section: Discussionmentioning

confidence: 92%

Voice outcomes in high‐grade Reinke's edema: Comparing microflap excision and microdebrider surgery

Bentsianov,

Liang,

Bentsianov

2023

Laryngoscope Investig Oto

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“…Mean duration for sustained phonation of /s/ and /z/phonemes (mean values of 2.9 s (2.9) and 3.7 s (3.1), respectively) was also reduced in comparison to published normative data [24][25][26]. Sustained phonation tasks, widely included in voice evaluations in both clinical and research settings, are intended to assess the integrity of the laryngeal and respiratory systems and the ability to coordinate respiration with phonation [24,36]. Airflow measures such as vital capacity have been linked to MPT [28,37] and recent publications have recommended the inclusion of pulmonary function tests in voice assessment [38].…”

Section: Discussionmentioning

confidence: 95%

“…Interestingly, eight of the participants produced s/z ratios of less than 0.6; that is, they sustained the voiced/z/ for much longer than the voiceless/s/. This pattern may reflect a complex interaction between laryngeal function, voluntary control of the articulators influencing the shape and size of the vocal tract, and respiratory support for voicing [36].…”

Section: Discussionmentioning

confidence: 96%

“…The integrity of laryngeal valving, neuromuscular control of the larynx, and its ability to rapidly adjust to various configurations of the vocal tract are also related to performance on sustained phonation tasks [28,36,37]. The s/z ratio task compares the duration of sustained production of /s/, a consonant that does not require vocal fold vibration, to the duration of sustained production of /z/, a consonant that does require vocal fold vibration.…”

Section: Discussionmentioning

confidence: 99%

“…This may limit the validity of our comparisons between the acoustic parameters collected from our participants and threshold values reported by other authors for typically developing children. Furthermore, sex, age, and puberty stage as well as differences in recording environment, assessment tasks, and task instructions are known to impact acoustic findings and therefore limit comparison of findings among studies [23,36,[57][58][59][60]. For example, both shimmer and jitter have been shown to be influenced by vocal loudness; analysis of quieter voices may artificially inflate jitter and shimmer values [43].…”

Section: Discussionmentioning

confidence: 99%

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Assessment of Dysphonia in Children with Pompe Disease Using Auditory-Perceptual and Acoustic/Physiologic Methods

Crisp

Neel

Amarasekara

et al. 2021

JCM

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Bulbar and respiratory weakness occur commonly in children with Pompe disease and frequently lead to dysarthria. However, changes in vocal quality associated with this motor speech disorder are poorly described. The goal of this study was to characterize the vocal function of children with Pompe disease using auditory-perceptual and physiologic/acoustic methods. High-quality voice recordings were collected from 21 children with Pompe disease. The Grade, Roughness, Breathiness, Asthenia, and Strain (GRBAS) scale was used to assess voice quality and ratings were compared to physiologic/acoustic measurements collected during sustained phonation tasks, reading of a standard passage, and repetition of a short phrase at maximal volume. Based on ratings of grade, dysphonia was present in 90% of participants and was most commonly rated as mild or moderate in severity. Duration of sustained phonation tasks was reduced and shimmer was increased in comparison to published reference values for children without dysphonia. Specific measures of loudness were found to have statistically significant relationships with perceptual ratings of grade, breathiness, asthenia, and strain. Our data suggest that dysphonia is common in children with Pompe disease and primarily reflects impairments in respiratory and laryngeal function; however, the primary cause of dysphonia remains unclear. Future studies should seek to quantify the relative contribution of deficits in individual speech subsystems on voice quality and motor speech performance more broadly.

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Sex and Age Stratified Voice Data in Japanese Vocally Healthy Individuals: Vocal Capacity

et al. 2022

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Revisiting Sustained Phonation Time of /s/, /z/, and /α/

Cited by 9 publications

References 21 publications

Voice outcomes in high‐grade Reinke's edema: Comparing microflap excision and microdebrider surgery

Voice outcomes in high‐grade Reinke's edema: Comparing microflap excision and microdebrider surgery

Assessment of Dysphonia in Children with Pompe Disease Using Auditory-Perceptual and Acoustic/Physiologic Methods

Sex and Age Stratified Voice Data in Japanese Vocally Healthy Individuals: Vocal Capacity

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