Did the speech of patients with Myasthenia Gravis decline over 4 years?
Annelise Ayres, Marina Martins Pereira Padovani, Maira Rozenfeld Olchik and 4 others
PMID 39536167WHAT IT FOUND
Speech worsened over four years in stable Myasthenia Gravis patients, with more diagnosed with dysarthria.
However, patients felt their speech improved. Self-perception is unreliable for monitoring decline, so objective speech assessments are necessary.
Key findings
01Despite stable clinical status, patients showed a decline in speech performance and an increase in the number of participants diagnosed with mild or moderate dysarthria over four years.
02Objective acoustic analysis revealed worsening articulation and phonation, but patients reported significant improvement in their own speech self-perception.
03There was no correlation between the decline in speech patterns and clinical characteristics of the disease, such as severity or duration.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The sample size is very small (10 patients) due to a massive 73.6% dropout rate, which limits the generalizability of the findings. The study population was restricted to native Brazilian Portuguese speakers, which may affect the applicability of specific acoustic norms to other languages. The improvement in Maximum Phonation Time was likely due to a learning effect from repeating the task, complicating the interpretation of respiratory changes. There was no control for potential medication changes or subtle fluctuations in disease status that might have influenced speech independent of the longitudinal trend.
Declared interests
The study was funded by the Fundo de incentivo a pesquisa e eventos (FIPE) do Hospital de Clínicas de Porto Alegre. No commercial conflicts of interest were declared.
The easy way to misread this
Do not assume that stable clinical scores or improved patient self-perception mean speech function is preserved. Objective measures showed decline even when patients felt better.