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.
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 dysphagiapatients 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.
Authors: Robert Brinton Fujiki; Abby J Oliver; M Preeti Sivasankar; Bruce A Craig; Georgia A Malandraki Journal: J Speech Lang Hear Res Date: 2019-02-26 Impact factor: 2.297
Authors: Ali Rajaei; Fereshteh Ashtari; Seyed Abolfazl Azargoon; Ahmad Chitsaz; Mohammad Hussein Nilforoush; Masoud Taheri; Saba Sadeghi Journal: Adv Biomed Res Date: 2015-05-29