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Dysarthria management: LSVT, rate control, prosthetics and AAC
Dysarthria treatment starts with the subsystem that limits intelligibility most — often respiratory support and loudness — and combines intensive practice, rate reduction, prosthetic aids and augmentative communication, according to the disease and the direction it is heading.
Why it matters in the exam
Questions describe a specific patient and ask for the best treatment: a patient with Parkinson's disease who speaks softly and feels he is "shouting" at normal loudness, a patient with ataxic dysarthria who speaks too fast, a patient with severe hypernasality but fair articulation, or a woman with ALS who is still intelligible but slowing down. Each points to a different tool.
Other points tested: how to measure intelligibility validly (unfamiliar listeners transcribing a recording), why LSVT asks for a loud voice without strain, that deep brain stimulation improves tremor and rigidity but not necessarily speech, and that non-speech oral exercises do not replace speech practice.
Key points
- Start with the subsystem that limits most, usually respiration and voice.
- Parkinson's disease: LSVT LOUD — loud, no strain, intensive, with recalibration.
- Fast rate: pacing board, and if it does not carry over — DAF.
- Hypernasality from palatal weakness: a palatal lift.
- ALS: early AAC and voice banking.
Summary table
| Condition | Core problem | Suitable treatment |
|---|---|---|
| Parkinson's disease | Soft voice, impaired perception of his own loudness | LSVT LOUD: intensive practice (16 sessions in a month) of a loud voice without strain, and recalibration of the sense of loudness |
| Parkinson's disease with rushes of speech | A fast rate the patient cannot slow alone | A pacing board, and if it does not carry over outside the room — delayed auditory feedback (DAF) |
| Ataxic dysarthria | Fast rate and irregularity | Rate reduction (pacing board, pointing to the first letter on an alphabet board) |
| Flaccid dysarthria with severe hypernasality | Weak velopharyngeal closure, while articulation and breathing are fair | A palatal lift prosthesis, together with a prosthodontist |
| Respiratory weakness (for example after Guillain-Barre) | Two or three words per breath, weak voice | Respiratory support and phrasing first, articulation only afterwards |
| ALS | Progressive decline | Early planning of AAC and voice banking, while the patient is still intelligible |
In the full version for subscribers
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Sources
- Duffy, Motor Speech Disorders: Substrates, Differential Diagnosis, and Management, 4th edition (2020) — Managing the dysarthrias
- Ramig et al., LSVT LOUD, program manual and trials (2018 update) — Intensive voice treatment for Parkinson's disease
- ASHA Practice Portal, 2024 — Dysarthria in Adults
Sources are given for further reading; the text is written afresh and not copied from them.
Reviewed by the Examqo AI Professor · 2026-11-02. The text may contain errors; when in doubt, check the source.