Journal of voice : official journal of the Voice Foundation
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We aimed to study the effect of deep brain stimulation (DBS) in the subthalamic nucleus (STN) and caudal zona incerta (cZi) on level of perceived voice tremor in patients with Parkinson disease (PD). ⋯ STN-DBS decreased perceived voice tremor on a group level. cZi-DBS decreased perceived voice tremor in patients with PD with moderate to severe preoperative levels of the symptom.
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Clinical Trial
Effects of a Straw Phonation Protocol on Acoustic and Perceptual Measures of an SATB Chorus.
Recent scholarship has suggested that semi-occluded vocal tract (SOVT) exercises may increase vocal economy of individuals by reducing vocal effort while maintaining or increasing acoustic output. Choral singers, however, may use different resonance techniques or change voicing behaviors in an effort to hear their own sound in relation to others. One investigation revealed significant increases in a choir's mean spectral energy after participating in a straw phonation protocol. However, that study reported only acoustic measures and did not include choristers' perceptions of the choral sound and their own voicing efficiency. ⋯ Choristers perceived less vocal effort while maintaining vocal output after straw phonation, which may feasibly align with extant solo research. More research may determine whether this result is due specifically to SOVTs.
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Meta Analysis
The Impact of Vocal and Laryngeal Pathologies Among Professional Singers: A Meta-analysis.
Professional singers are more likely to develop laryngeal pathologies and symptoms associated with misuse and overuse of the voice. However, different studies have shown conflicting evidence. We aim to perform a systematic review and quantitative meta-analysis to determine the prevalence and risk of laryngeal pathologies and symptoms among professional singers. ⋯ Professional singers are at an increased risk of laryngeal pathologies and symptoms associated with vocal misuse and overuse, particularly hoarseness, GERD, edema, and polyps.
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Exercise-induced laryngeal obstruction (EILO), the condition previously known as paradoxical vocal fold motion and vocal cord dysfunction, is characterized by inappropriate glottic or supraglottic obstruction during high-intensity exercise, causing exertional dyspnea, frequently with stridor. EILO is definitively diagnosed through upper-airway visualization during a characteristic episode. Although respiratory retraining is a primary therapy for EILO, many patients report symptom persistence despite adequate performance of traditional techniques. This report describes three novel breathing techniques for EILO, the Olin EILOBI (EILO biphasic inspiratory) breathing techniques. We include a teaching process and case series with patient-reported assessments. ⋯ The Olin EILOBI breathing techniques are novel respiratory retraining techniques for use in high-intensity exercise. Case series subjects reported reasonable expectations, a helpful teaching process, the ability to use these techniques during high-intensity exercise, and perceived clinical effectiveness.
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This study was aimed at determining the internal and external responsiveness of the Persian version of the Consensus Auditory-Perceptual Evaluation of Voice (called ATSHA), Persian version of the Voice Handicap Index (VHI), and Praat scales among patients with vocal mass lesions and secondary muscle tension dysphonia. ⋯ This study recommends both the Consensus Auditory-Perceptual Evaluation of Voice and the VHI scales to show voice therapy changes. The target voice scale changes were not able to predict the videostroboscopy changes as external standard. Furthermore, we recommend that the overall severity and roughness may properly classify those improved and stable patients.