Transcranial Magnetic Stimulation in Laryngeal Dystonia
This randomized clinical trial with a crossover design aims to investigate the effects of neuromodulation through repetitive transcranial magnetic stimulation (rTMS) applied to patients diagnosed with laryngeal dystonia. Participants will undergo three experimental conditions: (1) rTMS alone, (2) rTMS combined with speech-language therapy, and (3) sham rTMS combined with speech-language therapy. The order of the conditions will be randomized. Each phase of the protocol will consist of five consecutive sessions.
Outcomes will include acoustic vocal quality parameters, perceptual-auditory voice assessment, self-ratings of vocal effort, smoothed cepstral peak prominence measures, and global perceived change following the intervention. It is expected that the study will contribute to a better understanding of the effects of the intervention on vocal outcomes, supporting the optimization and standardization of therapeutic protocols for laryngeal dystonia.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Katia K Monte-Silva
- Telefonnummer: +55(81) 99503-2493
- E-mail: monte.silva@ufpe.br
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Barn
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Adults (≥18 years) of any sex with a confirmed diagnosis of laryngeal dystonia
- Participants not undergoing botulinum toxin treatment at the time of the intervention
- Ability to provide informed consent
- Ability to complete all study assessments and intervention procedures
Exclusion Criteria:
- Other forms of dystonia
- Vocal fold lesions
- Vocal fold paralysis
- Contraindications to repetitive transcranial magnetic stimulation (rTMS)
- Inability to complete study assessments or intervention procedures
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Tredobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Eksperimentel: Active rTMS
Participants will receive active repetitive transcranial magnetic stimulation (rTMS) alone, delivered according to the study protocol, without concurrent speech-language therapy.
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Active repetitive transcranial magnetic stimulation (rTMS) delivered using a magnetic stimulator according to the study protocol.
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Eksperimentel: Active rTMS + Speech-Language Therapy
Participants will receive active repetitive transcranial magnetic stimulation (rTMS) combined with speech-language therapy, administered according to the standardized intervention protocol.
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Active repetitive transcranial magnetic stimulation (rTMS) delivered using a magnetic stimulator according to the study protocol.
Standardized speech-language therapy focused on voice rehabilitation delivered by a licensed speech-language pathologist according to the study protocol.
|
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Sham-komparator: Sham rTMS + Speech-Language Therapy
Participants will receive sham repetitive transcranial magnetic stimulation (rTMS) combined with speech-language therapy.
Sham stimulation will mimic active rTMS without delivering therapeutic magnetic stimulation.
|
Standardized speech-language therapy focused on voice rehabilitation delivered by a licensed speech-language pathologist according to the study protocol.
Sham repetitive transcranial magnetic stimulation (rTMS) delivered using a sham stimulation procedure designed to mimic active rTMS without delivering therapeutic magnetic stimulation.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Acoustic Voice Parameters Assessed Using VoxMetria® and FonoView® Software
Tidsramme: through study completion, an average of 6 months
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Acoustic voice parameters will be assessed using VoxMetria and FonoView software during sustained vowel phonation and connected speech tasks.
The analysis will include F0 standard deviation (F0 SD), F0 variability, semitone variability, jitter, cepstral peak prominence smoothed (CPPS), voiced time, and unvoiced time.
Each parameter will be analyzed separately and reported as the change from baseline to post-intervention.
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through study completion, an average of 6 months
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Vocal Effort Assessed by the Borg Category Ratio 10 Scale for Vocal Effort
Tidsramme: through study completion, an average of 6 months
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Vocal effort will be assessed using the Borg Category Ratio 10 Scale for Vocal Effort.
Scores range from 0 to 10, where 0 indicates no vocal effort and 10 indicates maximum vocal effort.
Higher scores indicate worse perceived vocal effort.
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through study completion, an average of 6 months
|
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Patient Global Impression of Change Assessed by the Patient Global Impression of Change Scale
Tidsramme: through study completion, an average of 6 months
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Global perceived change will be assessed using the Patient Global Impression of Change Scale.
Scores range from 1 to 7, where 1 = very much worse and 7 = very much improved.
Higher scores indicate greater perceived improvement.
|
through study completion, an average of 6 months
|
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Voice-Related Quality of Life Assessed by the Voice-Related Quality of Life Questionnaire (Brazilian Portuguese Version - QVV)
Tidsramme: through study completion, an average of 6 months
|
Voice-related quality of life will be assessed using the Voice-Related Quality of Life (V-RQOL) questionnaire, validated for Brazilian Portuguese (QVV).
Scores range from 0 to 100, with higher scores indicating better voice-related quality of life.
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through study completion, an average of 6 months
|
Andre resultatmål
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Perceptual-auditory voice assessment
Tidsramme: through study completion, an average of 6 months
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Perceptual-auditory evaluation of voice quality performed by trained raters, based on standardized speech and sustained vowel tasks.
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through study completion, an average of 6 months
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Nathália Suellen Valeriano Cardoso Cardoso, UFPE - nathalia.suellen@ufpe.br
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Neurologiske manifestationer
- Sygdomme i nervesystemet
- Luftvejssygdomme
- Otorhinolaryngologiske sygdomme
- Laryngeale sygdomme
- Stemmeforstyrrelser
- Patologiske tilstande, tegn og symptomer
- Tegn og symptomer
- Dysfoni
- Terapeutik
- Patientpleje
- Rehabilitering
- Efterpleje
- Kontinuitet i patientpleje
- Rehabilitering af tale- og sprogforstyrrelser
- Taleterapi
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- rTMS_Laryngeal_Dystonia
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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