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ERIC Number: EJ946263
Record Type: Journal
Publication Date: 2011-Nov
Pages: 7
Abstractor: As Provided
ISSN: ISSN-1058-0360
The Utility of Pitch Elevation in the Evaluation of Oropharyngeal Dysphagia: Preliminary Findings
Malandraki, Georgia A.; Hind, Jacqueline A.; Gangnon, Ronald; Logemann, Jeri A.; Robbins, JoAnne
American Journal of Speech-Language Pathology, v20 n4 p262-268 Nov 2011
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[subscript 0]) and perceptual evaluation of pitch elevation independently significantly predicted Penetration-Aspiration Scale scores for thin liquid swallows (p = 0.01 and 0.03, 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. (Contains 4 figures.)
American Speech-Language-Hearing Association (ASHA). 10801 Rockville Pike, Rockville, MD 20852. Tel: 800-638-8255; Fax: 301-571-0457; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Wisconsin