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OBJECTIVE: To determine whether there is a difference in patient satisfaction between in-person and virtual voice therapy. METHODS: Patient satisfaction answers to the National Research Corporation (NRC) Health patient survey were retrieved for two separate 11 month periods. The first was for an in-person cohort, from April 2019 to February 2020. The second was for a virtual cohort between April 2020 and February 2021. Two group t tests or Wilcoxon rank sum tests were used to compare responses between the in-person and virtual cohorts. The effect of modality of therapy by gender, age, and race was examined by testing interactions with separate ANOVA models. RESULTS: Responses were compared between 224 patient satisfaction surveys for the virtual cohort and 309 patient satisfaction surveys for the in-person cohort. Overall, responses were highly favorable in all categories. There were no differences between the in-person and virtual cohorts' responses with respect to three main categories: likelihood of future referral of clinic or provider; communication with provider; and comprehension of the treatment plan. The interaction between modality of therapy delivery and age was significant for the question, "Did you know what to do after your visit," with 18-44 year olds in the in-person group reporting a better understanding of the treatment plan compared to the 18-44 year olds in the virtual therapy cohort (P = 0.004). There were no interactions between modality of therapy and gender, or race. CONCLUSION: Virtual delivery of voice therapy was associated with comparable visit satisfaction scores to in-person delivery, with both delivery modalities demonstrating very high satisfaction. Future studies are needed to identify which patients and conditions are most suited for virtual versus in-person delivery of speech-language pathology services in voice clinics.

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OBJECTIVES: The purpose of this qualitative study was to examine relationships between psychological factors, particularly perceived control, and voice symptoms in adults seeking treatment for a voice problem. METHODS: Semistructured interviews of adult patients with a clinical diagnosis of muscle tension dysphonia were conducted and transcribed. Follow-up interviews were conducted as needed for further information or clarification. A multidisciplinary team analyzed interview content using inductive techniques. Common themes and subthemes were identified. A conceptual model was developed describing the association between voice symptoms, psychological factors, precipitants of ongoing voice symptoms, and perceived control. RESULTS: Thematic saturation was reached after 23 interviews. No participants reported a direct psychological cause for their voice problem, although half described significant life events preceding voice problem onset (eg, miscarriage and other health events, interpersonal conflicts, and family members' illnesses, injuries, and deaths). Participants described psychological influences on voice symptoms that led to rapid exacerbation of their voice symptoms. Participants described the helpfulness of speech therapy and sometimes also challenges of applying techniques in daily life. They also discussed personal coping strategies that included behavioral (eg, avoiding triggers and seeking social support) and psychological (eg, mind-body awareness and emotion regulation) components. Voice-related perceived control was associated with adaptive emotional and behavioral responses, which appeared to facilitate symptom improvement. CONCLUSIONS: In this qualitative pilot study, participant narratives suggested that psychological factors and emotions influence voice symptoms, facilitating development of a preliminary conceptual model of how adaptive and maladaptive responses develop and how they influence vocal function.

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OBJECTIVE: To assess the prevalence and severity of dysphonia in patients with cystic fibrosis sinusitis. We hypothesized that patients with CF sinusitis, compared with 2 control groups, would have higher self-reported prevalence of dysphonia and greater severity of dysphonia, according to patient-reported outcome measures as well as auditory-perceptual evaluation by expert listeners. STUDY DESIGN: Cross-sectional comparative pilot study. SETTING: Academic tertiary care clinic. STUDY PARTICIPANTS AND METHODS: Analysis included 37 study participants: 17 patients with CF sinusitis, 10 healthy individuals, and 10 patients with non-CF sinusitis. All participants completed the 10-item Voice Handicap Index (VHI-10) questionnaire and provided voice samples. On all samples, 6 blinded speech-language pathologists independently performed auditory-perceptual evaluation, using Consensus Auditory-Perceptual Evaluation of Voice. To assess severity of sinonasal symptoms, we used the 20-item Sinonasal Outcome Test (SNOT-20). Standard parametric and nonparametric statistical analysis was performed. RESULTS: The differences between the 3 groups in prevalence of abnormal VHI-10 scores were not statistically significant. SNOT-20 scores were similar in the 2 sinusitis patient groups. VHI-10 scores were highest in patients with CF sinusitis, intermediate in patients with non-CF sinusitis, and lowest in healthy individuals (P = .005). Auditory-perceptual evaluation demonstrated greater overall severity of dysphonia in patients with CF sinusitis compared with the 2 control groups (P = .0005). CONCLUSIONS: Cystic fibrosis sinusitis appeared to be associated with worse vocal function as measured by patient self-report as well as auditory-perceptual evaluation of voice compared with patients with non-CF sinusitis and healthy controls. Further investigation in this area is warranted.

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OBJECTIVE: The purpose of this study is to establish normative values for the smoothed cepstral peak prominence (CPPS) and its sensitivity and specificity as a measure of dysphonia. STUDY DESIGN: Prospective cohort study. METHODS: Voice samples of running speech were obtained from 835 patients and 50 volunteers. Eight laryngologists and four speech-language pathologists performed perceptual ratings of the voice samples on the degree of dysphonia/normality using an analog scale. The mean of their perceptual ratings was used as the gold standard for the detection of the presence or absence of dysphonia. CPPS was measured using the CPPS algorithm of Hillenbrand, and the cut-off value for positivity that has the highest sensitivity and specificity for discriminating between normal and severely dysphonia voices was determined based on ROC-curve analysis. RESULTS: The cut-off value for normal for CPPS was set at 4.0 or higher, which gave a sensitivity of 92.4%, a specificity of 79%, a positive predictive value of 82.5%, and a negative predictive value of 90.8%. The area under the receiver operating characteristic (ROC) curve was 0.937 (P < 0.05). CONCLUSIONS: CPPS is a good measure of dysphonia, with the normal value of CPPS (Hillenbrand algorithm) of a running speech sample being defined as a value of 4.0 or higher.

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Quantification of perceptual voice characteristics allows the assessment of voice changes. Acoustic measures of jitter, shimmer, and noise-to-harmonic ratio (NHR) are often unreliable. Measures of cepstral peak prominence (CPP) may be more reliable predictors of dysphonia. Trained listeners analyzed voice samples from 281 patients. The NHR, amplitude perturbation quotient, smoothed pitch perturbation quotient, percent jitter, and CPP were obtained from sustained vowel phonation, and the CPP was obtained from running speech. For the first time, normal and abnormal values of CPP were defined, and they were compared with other acoustic measures used to predict dysphonia. The CPP for running speech is a good predictor and a more reliable measure of dysphonia than are acoustic measures of jitter, shimmer, and NHR.

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Traditional measures of dysphonia vary in their reliability and in their correlations with perceptions of grade. Measurements of cepstral peak prominence (CPP) have been shown to correlate well with perceptions of breathiness. Because it is a measure of periodicity, CPP should also predict roughness. The ability of CPP and other acoustic measures to predict overall dysphonia and the subcategories of breathiness and roughness in pathological voice samples is explored. Preoperative and postoperative speech samples from 19 patients with unilateral recurrent laryngeal nerve paralysis who underwent operative intervention were analyzed by trained listeners and by measures of smoothed CPP (CPPS), noise-to-harmonic ratio (NHR), amplitude perturbation quotient (APQ), relative average perturbation (RAP), and smoothed pitch perturbation quotient (sPPQ). The data were analyzed with bivariate Pearson correlation statistics. Grade of dysphonia and breathiness ratings correlated better with measurements of CPPS than with the other measures. CPPS from samples of connected speech (CPPS-s) best predicted overall dysphonia. None of the measures were useful in predicting roughness.

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