The effects of Cricothyroid Visor Maneuver (CVM) therapy on the voice characteristics of patients with muscular tension dysphonia: A Case Series Study

Shahouzaei, Nasrin; Dehqan, Ali; Jamali, Jamshid; Ghaemi, Hamed; Rasoulian, Bashir; Ghaemi, Hamide

doi:10.1016/j.jvoice.2022.02.016

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…In newer studies, manual interventions continue to show promise and expand on traditional LMT interventions’ more specific nature and applied location. Nasrin et al [9] demonstrated the effectiveness of the cricothyroid visor maneuver, though they chose not to discuss the underlying mechanisms of such interventions. Flock and King [10 ▪▪ ] compare various LMT styles, seeing common ground among the stated underpinning of each model, with recommendations for further study.…”

Section: Introductionmentioning

confidence: 99%

The mechanism of action for laryngeal manual therapies: the need for an update

Fritz

2024

Current Opinion in Otolaryngology &Amp; Head &Amp; Neck Surgery

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Purpose of review To propose a pathway for expanding the understanding of potential mechanisms of action with laryngeal-based manual therapy (LMT) for muscle tension dysphonia (MTD). This review may help determine if current LMT literature has kept up with advances in the more general manual therapy (MT) findings. Recent findings Studies over the past thirty years, including recently published articles, have confirmed the efficacy of various manual therapy interventions in treating MTD. However, gaps exist between current LMT literature and that being presented in the more general MT field. Instead of viewing peripheral manipulation's influences as a local cause/effect process, the MT literature paints a richer tapestry of centrally mediated impacts. Summary Evidence from outside the LMT field has introduced a broad tapestry of factors that may contribute to the efficacy of MT, extending beyond the local effects reported in LMT literature. To better understand the effect and mechanism of action touch-based interventions have on a patient's voice and to potentially improve outcomes, it is necessary to broaden investigations to include a broader range of perspectives.

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Section: Introductionmentioning

confidence: 99%

The mechanism of action for laryngeal manual therapies: the need for an update

Fritz

2024

Current Opinion in Otolaryngology &Amp; Head &Amp; Neck Surgery

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“…Wuyts et al’s DSI model, presented in 2000, is a multivariate model that provides an objective and quantitative indicator of overall voice quality by incorporating acoustic (jitter, and the lowest intensity and highest fundamental frequency in the vocal range profile) and aerodynamic (maximum phonation time of the vowel [a:]) markers [ 9 ]. DSI has been regarded as a valuable and viable assessment for assessing overall voice quality, voice treatment, vocal training, and phonosurgery results [ 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. Additional research found connections between the DSI and auditory-perceptual judgment and quality of life evaluation, establishing the DSI as a valid approach for evaluating dysphonia severity [ 13 , 14 , 15 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Accuracy Analysis of the Multiparametric Acoustic Voice Indices, the VWI, AVQI, ABI, and DSI Measures, in Differentiating between Normal and Dysphonic Voices

Uloza,

Pribuišis,

Ulozaite-Staniene

et al. 2023

JCM

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The study aimed to investigate and compare the accuracy and robustness of the multiparametric acoustic voice indices (MAVIs), namely the Dysphonia Severity Index (DSI), Acoustic Voice Quality Index (AVQI), Acoustic Breathiness Index (ABI), and Voice Wellness Index (VWI) measures in differentiating normal and dysphonic voices. The study group consisted of 129 adult individuals including 49 with normal voices and 80 patients with pathological voices. The diagnostic accuracy of the investigated MAVI in differentiating between normal and pathological voices was assessed using receiver operating characteristics (ROC). Moderate to strong positive linear correlations were observed between different MAVIs. The ROC statistical analysis revealed that all used measurements manifested in a high level of accuracy (area under the curve (AUC) of 0.80 and greater) and an acceptable level of sensitivity and specificity in discriminating between normal and pathological voices. However, with AUC 0.99, the VWI demonstrated the highest diagnostic accuracy. The highest Youden index equaled 0.93, revealing that a VWI cut-off of 4.45 corresponds with highly acceptable sensitivity (97.50%) and specificity (95.92%). In conclusion, the VWI was found to be beneficial in describing differences in voice quality status and discriminating between normal and dysphonic voices based on clinical diagnosis, i.e., dysphonia type, implying the VWI’s reliable voice screening potential.

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