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1.
Front Immunol ; 15: 1395968, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38846940

RESUMO

Objective: Treatment options with disease-modifying antirheumatic drugs (DMARDs) for psoriatic arthritis (PsA) have evolved over recent years. In addition to Janus kinase inhibitors (JAKi), four classes of biologic DMARDs (bDMARDs; interleukin [IL]-23 inhibitors [IL-23i], IL-12/23 inhibitors [IL-12/23i], tumor necrosis factor inhibitors [TNFi], and IL-17 inhibitors [IL-17i]) are currently approved for moderate to severe PsA treatment. There is minimal evidence of the persistence of these drugs among PsA outpatients in a real-world scenario during the period following the approval of JAKi. Therefore, we aimed to analyze the drug survival rates of biologic and JAKi therapies among German PsA outpatients during routine clinical care. Methods: We retrospectively analyzed PsA patients with a new prescription for a biologic or JAKi in the RHADAR database between January 2015 and October 2023. Kaplan-Meier Curves and Cox regression modelling were used to compare drug survival rates. Results: 1352 new prescriptions with bDMARDs (IL-12/23i [n=50], IL-23i [n=31], TNFi [n=774], IL-17i [n=360]) or JAKi (n=137) were identified. The 5-year drug survival rate was 67.8% for IL-17i, 62.3% for TNFi, 53.3% for JAKi, and 46.0% for IL-12/23i. Discontinuation probabilities for JAKi and IL-12/23i were significantly higher compared with TNFi (JAKi hazard ratio [HR] 1.66, [95% CI 1.23-2.24], p=0.001; IL-12/23i HR 1.54, [95% CI 1.02-2.33], p=0.042) and IL-17i (JAKi HR 1.77, [95% CI 1.27-2.47], p=0.001; IL-12/23i HR 1.64, [95% CI 1.06-2.55], p=0.027). JAKi-treated patients had more severe disease and more osteoarthritis (OA) compared to TNFi and more OA compared to IL-17i. Conclusion: German PsA outpatients might persist longer with TNFi and IL-17i compared with IL-12/23i or JAKi. For TNFi, differences in subgroup characteristics and comorbidities (OA) may have affected drug survival rates. For IL-17i, the longer drug survival might not only be related to less OA compared to JAKi and, therefore, might be affected by other factors.


Assuntos
Antirreumáticos , Artrite Psoriásica , Interleucina-12 , Interleucina-17 , Interleucina-23 , Inibidores de Janus Quinases , Humanos , Artrite Psoriásica/tratamento farmacológico , Artrite Psoriásica/mortalidade , Masculino , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Interleucina-17/antagonistas & inibidores , Alemanha , Interleucina-12/antagonistas & inibidores , Interleucina-23/antagonistas & inibidores , Inibidores de Janus Quinases/uso terapêutico , Antirreumáticos/uso terapêutico , Adulto , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Idoso , Bases de Dados Factuais , Pacientes Ambulatoriais , Resultado do Tratamento
2.
Rheumatol Int ; 44(6): 1143-1154, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38683351

RESUMO

BACKGROUND: Patients with axial spondyloarthritis (axSpA) benefit from regular home-based exercise (HbE). In spite of recommendations, a relevant proportion of German axSpA patients does not adhere to recommended HbE practices. To enhance HbE care, we developed the novel digital therapeutic (DTx) "Axia" compliant with the European medical device regulation (MDR). Axia offers a modern app-based HbE solution with patient educative content and further integrated features. OBJECTIVE: We aimed to assess Axia's efficacy, attractiveness, and functionality through a survey among axSpA-patients involved in the first user tests. METHODS: A mixed-method online questionnaire with 38 items was administered to 37 axSpA volunteers after using Axia. Numeric rating scales (NRS) and likelihood scales were primarily used. RESULTS: HbE frequency significantly increased from a median of 1 day/week to 6 days/week (p < 0.001) by using Axia. Existing HbE practitioners also increased their frequency (median of 4 days/week before, 6 days/week with Axia, p < 0.05). Axia received a median rating of 5 out of 5 stars. On NRS scales, Axia scored a median of 9 for intuitiveness and design, and a median of 8 for entertainment. 64.9% reported improved range of motion, 43.2% reported reduced pain, and 93.6% enhanced disease-specific knowledge. All users recommended Axia to other patients. CONCLUSION: Axia increases axSpA patients HbE frequency, possibly due to its good intuitiveness and design, leading to reduction in pain and subjective improvement of range of motion. This warrants further investigation in large randomized controlled interventional trials to establish its efficacy conclusively and patients adherence to HbE.


Assuntos
Espondiloartrite Axial , Terapia por Exercício , Aplicativos Móveis , Humanos , Masculino , Feminino , Estudos Transversais , Adulto , Pessoa de Meia-Idade , Terapia por Exercício/métodos , Inquéritos e Questionários , Educação de Pacientes como Assunto/métodos , Alemanha , Cooperação do Paciente
3.
Artigo em Inglês | MEDLINE | ID: mdl-38305463

RESUMO

OBJECTIVES: Our aim was to introduce a standardized system for assessing the extent of giant cell arteritis (GCA) on MRI, titled MRVAS (MR Vasculitis Activity score). To obtain a comprehensive view, we used an extensive MRI protocol including cranial vessels and the aorta with its branches. To test reliability, MRI was assessed by 4 readers with different levels of experience. METHODS: 80 patients with suspected GCA underwent MRI of cranial arteries and the aorta/branches (20 vessel segments). Every vessel was rated dichotomous [inflamed (coded as 1) or not 0], providing a summed score from 0 to 20. Blinded readers (two experienced radiologists [ExR], two inexperienced radiologists [InR]) applied the MRVAS on an individual vessel and an overall level (defined as the highest score of any of the individual vessel scores). To determine interrater agreement, Cohen's kappa was calculated for pairwise comparison of each reader for individual vessel segments. Intraclass correlation coefficients (ICC) were used for the MRVAS score. RESULTS: Concordance rates were excellent for both sub-cohorts on an individual vessel-based (GCA, ICC, 0.95; and non-GCA, ICC, 0.96) and Overall MRVAS score level (GCA, ICC, 0.96; and non-GCA, ICC, 1.0). Interrater agreement yielded significant concordance (p< 0.001) for all pairs (kappa range 0.78-0.98). No significant differences between ERs and IRs were observed (p= 0.38). CONCLUSION: The proposed MRVAS score allows standardized scoring of inflammation in GCA and achieved high agreement rates in a prospective setting.

4.
Front Immunol ; 14: 1294496, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38045701

RESUMO

Autologous hematopoietic stem cell transplantation (aHSCT) represents an effective treatment option in patients with severe forms of systemic sclerosis (SSc) by resetting the immune system. Nevertheless, secondary autoimmune disorders and progressive disease after aHSCT might necessitate renewed immunosuppressive treatments. This is particularly challenging when organ dysfunction, i.e., end-stage kidney failure, is present. In this case report, we present the unique case of a 43-year-old female patient with rapidly progressive diffuse systemic sclerosis who underwent aHSCT despite end-stage renal failure as consequence of SSc-renal crisis. Therefore, conditioning chemotherapy was performed with melphalan instead of cyclophosphamide with no occurrence of severe adverse events during the aplastic period and thereafter. After aHSCT, early disease progression of the skin occurred and was successfully treated with secukinumab. Thereby, to the best of our knowledge, we report the first case of successful aHSCT in a SSc-patient with end-stage kidney failure and also the first successful use of an IL-17 inhibitor to treat early disease progression after aHSCT.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Falência Renal Crônica , Escleroderma Sistêmico , Feminino , Humanos , Adulto , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/terapia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Falência Renal Crônica/etiologia , Falência Renal Crônica/terapia , Progressão da Doença
5.
Front Med (Lausanne) ; 10: 1146815, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37324155

RESUMO

Objectives: The spectrum of giant cell arteritis (GCA) and polymyalgia rheumatica (PMR) represents highly inflammatory rheumatic diseases. Patients mostly report severe physical impairment. Possible consequences for mental health have been scarcely studied. The aim of this study was to investigate psychological well-being in the context of GCA and PMR. Methods: Cross-sectional study with N = 100 patients with GCA and/or PMR (GCA-PMR). Patient-reported outcomes (PROs) were measured using the Short Form 36 Version 2 (SF-36v2) and visual analog scale (VAS) assessment. Moreover, the Patient Health Questionnaire 9 (PHQ-9) was used in 35 of 100 patients to detect depression. To compare PROs with physician assessment, VAS was also rated from physician perspective. To assess a possible association with inflammation itself, serological parameters of inflammation (C-reactive protein [CRP], erythrocyte sedimentation rate [ESR]) were included. Results: In all scales of the SF-36v2 except General Health (GH) and in the physical and mental sum score (PCS, MCS), a significant impairment compared to the German reference collective was evident (MCS: d = 0.533, p < 0.001). In the PHQ-9 categorization, 14 of the 35 (40%) showed evidence of major depression disorder. VAS Patient correlated significantly with PHQ-9 and SF-36 in all categories, while VAS Physician showed only correlations to physical categories and not in the mental dimensions. Regarding inflammatory parameters, linear regression showed CRP to be a complementary significant positive predictor of mental health subscale score, independent of pain. Conclusion: PRO show a relevant impairment of mental health up to symptoms of major depression disorder. The degree of depressive symptoms is also distinctly associated with the serological inflammatory marker CRP.

6.
Z Rheumatol ; 82(3): 256-261, 2023 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-34618212

RESUMO

BACKGROUND: Digital health applications/apps (DiGA) are entering many medical disciplines and have the potential to revolutionize patient care. In rheumatology, the use for axial spondyloarthritis (axSpA) would be conceivable in the form of an exercise app. Therefore, a representative survey among axSpA patients was conducted to determine the need for an axSpA exercise app. MATERIALS AND METHODS: An anonymous online survey among axSpA patients of the German Bechterew's Disease Association was conducted using a questionnaire; data were analysed using Excel, and GraphPad Prism. RESULTS: Four hundred and thirty-five axSpA patients participated in the survey. Eighty-four percent of the participants responded that there is a need to develop an axSpA-specific exercise app, and the same proportion want to use it. Patients under 60 years, patients under 60 years on biologics or Janus kinase inhibitor therapy, and patients with frequent back pain reported a greater need than their respective control subgroups (p < 0.001 in each case). CONCLUSION: The development of an exercise app for axSpA is considered necessary by a large proportion of the patients; younger and more intensively treated patients appear to have a greater need.


Assuntos
Aplicativos Móveis , Reumatologia , Espondilartrite , Espondilite Anquilosante , Humanos , Espondilartrite/terapia , Espondilite Anquilosante/complicações , Inquéritos e Questionários
8.
Front Immunol ; 12: 723349, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34539659

RESUMO

Autologous hematopoietic stem cell transplantation (aHSCT) represents an effective treatment for systemic sclerosis (SSc), but it also can cause immunological adverse events (iAEs). Therefore, we aimed to determine the frequency of iAEs [engraftment syndrome (ES) and secondary autoimmune disorder (sAD)] and to identify potential risk factors for their development in a retrospective analysis on 22 patients similarly transplanted due to SSc. While nine patients (41%) suffered from ESs, seven sADs occurred in six patients (27%). Patients who developed ES were older in our cohort (52.45 vs. 42.58 years, p = .0433, Cohen's d = 0.86), and cardiac involvement by SSc was associated with development of ES (OR = 40.11, p = .0017). Patients with manifestation of sAD had a higher modified Rodnan skin score (mRSS) reduction after aHSCT (90.50% vs. 60.00%, p = .0064, r = .65). Thus, IAEs are common after aHSCT for SSc and can occur in different stages during and after aHSCT with characteristic clinical manifestations. Good cutaneous response after aHSCT might be considered as a risk factor for sAD, and higher age at aHSCT and cardiac involvement might be considered as risk factors for the development of ES.


Assuntos
Doenças Autoimunes/etiologia , Doença Enxerto-Hospedeiro/etiologia , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Escleroderma Sistêmico/terapia , Adulto , Doenças Autoimunes/imunologia , Feminino , Doença Enxerto-Hospedeiro/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Escleroderma Sistêmico/imunologia , Escleroderma Sistêmico/patologia , Síndrome , Transplante Autólogo , Resultado do Tratamento , Adulto Jovem
9.
J Am Heart Assoc ; 9(24): e016479, 2020 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-33283577

RESUMO

Background Hypergravity may promote human hemostasis thereby increasing thrombotic risk. Future touristic suborbital spaceflight will expose older individuals with chronic medical conditions, who are at much higher thromboembolic risk compared with professional astronauts, to hypergravity. Therefore, we tested the impact of hypergravity on hemostasis in healthy volunteers undergoing centrifugation. Methods and Results We studied 20 healthy seated men before and after 15 minutes under 3 Gz hypergravity on a long-arm centrifuge. We obtained blood samples for hemostasis testing before, immediately after, and 30 minutes after centrifugation. Tests included viscoelastic thromboelastometry, platelet impedance aggregometry, endothelial activation markers, blood rheology testing, microparticle analyses, and clotting factor analysis. Exposure to hypergravity reduced plasma volume by 12.5% (P=0.002) and increased the red blood cell aggregation index (P<0.05). With hypergravity, thrombelastographic clotting time of native blood shortened from 719±117 seconds to 628±89 seconds (P=0.038) and platetet reactivity increased (P=0.045). Hypergravity shortened partial thromboplastin time from 28 (26-29) seconds to 25 (24-28) seconds (P<0.001) and increased the activity of coagulation factors (eg, factor VIII 117 [93-134] versus 151 [133-175] %, P<0.001). Tissue factor concentration was 188±95 pg/mL before and 298±136 pg/mL after hypergravity exposure (P=0.023). Antithrombin (P=0.005), thrombin-antithrombin complex (P<0.001), plasmin-alpha2-antiplasmin complex (0.002), tissue-plasminogen activatior (P<0.001), and plasminogen activator inhibitor-1 (P=0.002) increased with centrifugation. Statistical adjustment for plasma volume attenuated changes in coagulation. Conclusions Hypergravity triggers low-level hemostasis activation through endothelial cell activation, increased viscoelasticity, and augmented platelet reactivity, albeit partly counteracted through endogenous coagulation inhibitors release. Hemoconcentration may contribute to the response.


Assuntos
Testes de Coagulação Sanguínea/métodos , Coagulação Sanguínea/fisiologia , Voluntários Saudáveis/estatística & dados numéricos , Hemostasia/fisiologia , Hipergravidade/efeitos adversos , Adulto , Astronautas/estatística & dados numéricos , Testes de Coagulação Sanguínea/estatística & dados numéricos , Células Endoteliais/fisiologia , Humanos , Masculino , Reologia/métodos , Medição de Risco , Voo Espacial/estatística & dados numéricos , Tromboelastografia/métodos , Trombose/sangue , Trombose/etiologia
10.
Front Immunol ; 11: 1317, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32670291

RESUMO

Common variable immunodeficiency (CVID) is the most common primary immunodeficiency in adults. It is associated with hypogammaglobulinemia, recurring infections and autoimmune phenomena. Treatment includes immunoglobulin substitution and immunosuppressants. Autoimmune neurological manifestations of CVID are rare and occur predominantly as granulomatous disease. We report the case of a 35-year-old woman with CVID who developed autoimmune encephalitis as demonstrated by double cerebral biopsy. Infectious or malignant causes could be excluded. Despite intensive immunosuppressive therapy with common regimens no significant improvement could be achieved. Ultimately, an autologous hematopoietic stem cell transplantation (HSCT) was performed, resulting in lasting complete remission of the encephalitis. To our knowledge, this is the first report of refractory autoimmune phenomena in CVID treated by autologous HSCT.


Assuntos
Imunodeficiência de Variável Comum/terapia , Encefalite/terapia , Doença de Hashimoto/terapia , Transplante de Células-Tronco Hematopoéticas , Adulto , Feminino , Humanos , Transplante Autólogo , Resultado do Tratamento
11.
Clin Exp Rheumatol ; 38 Suppl 125(3): 59-64, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32301433

RESUMO

OBJECTIVES: To assess and compare sexual dysfunction (SDF) in female patients with systemic sclerosis (SSc) or systemic lupus erythematosus (SLE), to correlate sexual function with disease characteristics and depression, and to evaluate a short questionnaire (Qualisex) as a screening test. METHODS: Female patients with systemic sclerosis or systemic lupus erythematosus in two German tertiary university hospitals were evaluated in a prospective study. A self-designed questionnaire, the Female Sexual Function Index (FSFI), the Qualisex, and the Beck's depression inventory were used. RESULTS: 171 female patients were included into the study (83 with SSc, and 88 with SLE). 62.6% (52 of 83) of SSc patients and 67.0% (59 of 88) of SLE patients were sexually active. Only 9.6% of SSc patients and 14.8% of SLE patients had ever discussed sexual problems with their physician. Significantly more SSc patients would wish to discuss sexuality with their physician more intensively (37.3% vs. 28.4% in SLE patients, p=0.011). Among the 51 sexually active and evaluable SSc patients a mean FSFI of 25.53 (±5.06) was found, with a FSFI value defining sexual dysfunction (SDF) (<26.55) in 49% of patients, which did not differ significantly compared to SLE patients (n=59, mean FSFI 26.92 (±5.17), SDF in 45.8%). The Qualisex correlated significantly with the FSFI, and both Qualisex and FSFI correlated with depressiveness. CONCLUSIONS: Sexual dysfunction (SDF) is a frequent problem in female patients with SSc and SLE. Addressing sexual issues during medical consultation is an unmet need. The Qualisex constitutes a short questionnaire, which is suitable for addressing concerns on sexuality.


Assuntos
Lúpus Eritematoso Sistêmico , Escleroderma Sistêmico , Feminino , Humanos , Estudos Prospectivos , Comportamento Sexual , Inquéritos e Questionários
12.
J Acoust Soc Am ; 127(3): 1491-505, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20329849

RESUMO

In the framework of the European HearCom project, promising signal enhancement algorithms were developed and evaluated for future use in hearing instruments. To assess the algorithms' performance, five of the algorithms were selected and implemented on a common real-time hardware/software platform. Four test centers in Belgium, The Netherlands, Germany, and Switzerland perceptually evaluated the algorithms. Listening tests were performed with large numbers of normal-hearing and hearing-impaired subjects. Three perceptual measures were used: speech reception threshold (SRT), listening effort scaling, and preference rating. Tests were carried out in two types of rooms. Speech was presented in multitalker babble arriving from one or three loudspeakers. In a pseudo-diffuse noise scenario, only one algorithm, the spatially preprocessed speech-distortion-weighted multi-channel Wiener filtering, provided a SRT improvement relative to the unprocessed condition. Despite the general lack of improvement in SRT, some algorithms were preferred over the unprocessed condition at all tested signal-to-noise ratios (SNRs). These effects were found across different subject groups and test sites. The listening effort scores were less consistent over test sites. For the algorithms that did not affect speech intelligibility, a reduction in listening effort was observed at 0 dB SNR.


Assuntos
Algoritmos , Surdez/terapia , Auxiliares de Audição , Modelos Teóricos , Fonética , Estimulação Acústica , Meio Ambiente , Audição , Humanos , Ruído , Processamento de Sinais Assistido por Computador , Percepção da Fala
13.
Cogn Neurodyn ; 4(2): 119-31, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21629585

RESUMO

An increased listing effort represents a major problem in humans with hearing impairment. Neurodiagnostic methods for an objective listening effort estimation might support hearing instrument fitting procedures. However the cognitive neurodynamics of listening effort is far from being understood and its neural correlates have not been identified yet. In this paper we analyze the cognitive neurodynamics of listening effort by using methods of forward neurophysical modeling and time-scale electroencephalographic neurodiagnostics. In particular, we present a forward neurophysical model for auditory late responses (ALRs) as large-scale listening effort correlates. Here endogenously driven top-down projections related to listening effort are mapped to corticothalamic feedback pathways which were analyzed for the selective attention neurodynamics before. We show that this model represents well the time-scale phase stability analysis of experimental electroencephalographic data from auditory discrimination paradigms. It is concluded that the proposed neurophysical and neuropsychological framework is appropriate for the analysis of listening effort and might help to develop objective electroencephalographic methods for its estimation in future.

14.
Artigo em Inglês | MEDLINE | ID: mdl-19964575

RESUMO

An increased listening effort represents a major problem in humans with hearing impairment. Neurodiagnostic methods for an objective listening effort estimation could revolutionize auditory rehabilitation. However the cognitive neurodynamics of listening effort is not understood and research related its neural correlates is still in its infancy. In this paper we present a phase clustering analysis of large-scale listening effort correlates in auditory late responses (ALRs). For this we apply the complex wavelet transform as well as tight Gabor Frame (TGF) operators. We show (a) that phase clustering on the unit circle can separate ALR data from auditory paradigms which require a graduated effort for their solution; (b) the application of TGFs for an inverse artificial phase stabilization at the alpha/theta-border enlarges the endogenously driven listening effort correlates in the reconstructed time- domain waveforms. It is concluded that listening effort correlates can be extracted from ALR sequences using an instantaneous phase clustering analysis, at least by means of the applied experimental pure tone paradigm.


Assuntos
Atenção/fisiologia , Percepção Auditiva/fisiologia , Audição/fisiologia , Neurônios/fisiologia , Estimulação Acústica , Audiometria de Tons Puros/métodos , Cognição , Correção de Deficiência Auditiva/métodos , Auxiliares de Audição , Transtornos da Audição/epidemiologia , Transtornos da Audição/fisiopatologia , Transtornos da Audição/terapia , Humanos , Fenômenos Fisiológicos do Sistema Nervoso , Resolução de Problemas
15.
Artigo em Inglês | MEDLINE | ID: mdl-19163025

RESUMO

Modern hearing aid fitting could be revolutionized by the availability of objective methods for the listening effort estimation. However experimental and theoretical research dealing with this subject is still in its infancy. In this paper we present first results towards a neuropsychological and neurophysical model for the objective estimation of the listening effort by electroencephalographic data. Our model is based on intended endogenously driven top-down projections represented by corticothalamic feedback dynamics for auditory stream selection and their large-scale correlates in auditory evoked late responses. The predictions of the presented model are compared to experimental data obtained during different auditory tasks which required a graduated effort for their solutions. The experimental data verified the model predictions.It is concluded that the proposed neuropsychological and neurophysical modeling of stream selection provides an appropriate framework for listening effort estimation. The presented preliminary results of an ongoing study are encouraging,however, further focal research is necessary in order to estimate in how far the presented model and future extensions might support modern hearing aid fitting in practice.


Assuntos
Testes Auditivos/estatística & dados numéricos , Modelos Neurológicos , Modelos Psicológicos , Estimulação Acústica , Engenharia Biomédica , Eletroencefalografia/estatística & dados numéricos , Auxiliares de Audição/estatística & dados numéricos , Perda Auditiva/fisiopatologia , Perda Auditiva/psicologia , Perda Auditiva/terapia , Humanos , Modelos Estatísticos , Estimulação Luminosa , Tempo de Reação , Processamento de Sinais Assistido por Computador , Testes de Discriminação da Fala/estatística & dados numéricos
16.
J Voice ; 21(2): 169-78, 2007 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-16478658

RESUMO

SUMMARY: The authors investigated whether acoustic speaking voice analyses can be used to predict the beginning of mutation in 21 male members of a professional boys' choir. Over a period of 3 years before mutation, children were examined every 3 months by ear, nose, and throat (ENT) and phoniatric specialists. At the same time, the voice was evaluated acoustically using analysis features of the Goettingen Hoarseness Diagram (GHD). Irregularity component and noise component, jitter, shimmer, mean waveform correlation coefficient, and fundamental frequency were determined from recordings of the speaking voice. Significant changes of acoustic features appeared 7 and 5 months before mutation onset, which indicates that vocal function is already restricted 6 months before mutation onset. This acoustic voice analysis is therefore suitable to support the care of the professional singing voice.


Assuntos
Rouquidão/fisiopatologia , Fala/fisiologia , Qualidade da Voz , Adolescente , Criança , Humanos , Masculino , Estudos Prospectivos
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