AI Article Synopsis
- This study aimed to assess whether pitch elevation tasks could help evaluate oropharyngeal dysphagia in patients.
- Researchers conducted a pilot study with 40 patients, analyzing their pitch elevation during swallowing assessments alongside traditional evaluations.
- Findings suggested that lower pitch elevation correlated with swallowing issues such as penetration and aspiration, indicating it could be a valuable tool in diagnosing dysphagia, though further research is needed for broader applications.
Article Abstract
Purpose: To evaluate the utility of a pitch elevation task in the assessment of oropharyngeal dysphagia.
Method: This study was a pilot prospective cohort study including 40 consecutive patients (16 male and 24 female) who were referred by their physician for a swallowing evaluation. Patients were evaluated with a noninstrumental clinical examination and a videofluoroscopic swallow study, and participated in a pitch elevation task during videofluoroscopic image acquisition. Relationships between pitch elevation measurements (acoustic and perceptual) and swallow parameters (penetration/aspiration and residue) were investigated.
Results: Results of this pilot study revealed that both maximum fundamental frequency (F(0)) and perceptual evaluation of pitch elevation independently significantly predicted Penetration-Aspiration Scale scores for thin liquid swallows (p = .01 and .03, respectively). Vocal range (average pitch to falsetto) was not sensitive in predicting likelihood of oropharyngeal dysphagia.
Conclusions: Findings indicate that reduced pitch elevation can be indicative of reduced airway protection and swallowing impairment in some dysphagia patients and may be a useful supplement to dysphagia screening and diagnosis. Further investigation is warranted to determine the optimal utility of this procedure for different diagnostic categories of patients.
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| http://dx.doi.org/10.1044/1058-0360(2011/10-0097) | DOI Listing |
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