Document Detail

Assessment of phonation threshold pressure: A critical review and clinical implications.
MedLine Citation:
PMID:  21856967     Owner:  NLM     Status:  Publisher    
PURPOSE: To describe the origins of the task elicitation procedure for determining phonation threshold pressure (PTP) and, through a literature review and on-line survey, describe published procedural, environmental, and participant variable departures from the original methodology. METHOD: Literature search terms included phonation threshold pressure, subglottal pressure and phonation, pressure measurement and phonation, lung pressure and phonation, and vocal fold oscillation onset. Inclusion criteria were limited to indirect assessment of phonation threshold pressure, English language publications between 1980 and 2009, and peer reviewed journals. Studies including animals, computer or physical models, alaryngeal speakers, laryngeal airway resistance, or any airflow interruption technique were excluded. Twenty-four papers matched the inclusionary criteria. An online survey to query task elicitation procedures was then developed from the literature review. RESULTS: The scientific rationale for inclusion of PTP data was consistent across published studies; however, variations in procedural methodology for task elicitation were identified, as were environmental and participant inconsistencies that may impact PTP pressure values. Findings of the online survey mirrored the inconsistencies identified in the literature review. CONCLUSIONS: The methodological differences for task elicitation identified in this comprehensive review of the literature and the online survey, while bringing into question the reliability of PTP measurement, illuminate scientific questions yet to be answered to further refine and potentially standardize PTP as a more reliable research and clinical measurement.
Laura W Plexico; Mary J Sandage; Katherine Y Faver
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-19
Journal Detail:
Title:  American journal of speech-language pathology / American Speech-Language-Hearing Association     Volume:  -     ISSN:  1558-9110     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9114726     Medline TA:  Am J Speech Lang Pathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Auburn University.
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