Chewing and food consistency: effects on bolus transport and swallow initiation.

Chewing and food consistency: effects on bolus transport and swallow initiation. Research Abstract Details 

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Chewing and food consistency: effects on bolus transport and swallow initiation. Abstract Text:

Eiichi Saitoh,Seiko Shibata,Koichiro Matsuo,Mikoto Baba,Wataru Fujii,Jeffrey B Palmer,

Preswallow bolus formation usually occurs in the mouth for liquids and in the oropharynx for solid foods. We examined the effect of chewing on the relationship between bolus transport and swallow initiation. Fifteen healthy subjects were imaged with lateral projection videofluorography while eating liquids, solid foods, and a mixture of liquid and solid foods in upright and facedown postures. Videotapes were reviewed to measure the location of the leading edge of the barium at swallow initiation. Chewing and initial consistency each altered the relationship between food transport and swallow initiation. In particular, when chewing liquid (or consuming foods with both liquid and solid phases), a portion of the food commonly reached the hypopharynx well before swallow onset. This transport to the hypopharynx was highly dependent on gravity, but transport to the valleculae for chewed solid food was active, depending primarily on tongue-palate contact. Chewing appeared to reduce the effectiveness of the posterior tongue-palate seal, allowing oral contents to spill into the pharynx. Consuming two-phase foods with both solid and liquid phases may increase the risk of aspiration in dysphagic individuals with impaired airway protective reflexes.

Chewing and food consistency: effects on bolus transport and swallow initiation. Publishing Authors By Initials

E Saitoh,S Shibata,K Matsuo,M Baba,W Fujii,JB Palmer,

For similar technology, industry, and agriculture: technology: educational technology: audiovisual aids: tape recording: videotape recording research abstracts see: technology, industry, and agriculture: technology: educational technology: audiovisual aids: tape recording: videotape recording research

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Chewing and food consistency: effects on bolus transport and swallow initiation. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Dysphagia

VOLUME: 22

Page Numbers: 100-7

Journal Abbreviation:

ISSN: 0179-051X

DAY: 14

MONTH: 02

YEAR: 2007

Chewing and food consistency: effects on bolus transport and swallow initiation. Information

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LANGUAGE: eng

NlmUniqueID: 8610856

Chewing and food consistency: effects on bolus transport and swallow initiation. Keywords Mesh Terms:

KEYWORDS: Videotape Recording

MESH TERMS: physiology

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Grant and Affiliation Information for Chewing and food consistency: effects on bolus transport and swallow initiation.

AFFILIATION: Department of Rehabilitation Medicine, School of Medicine, Fujita Health University, Toyoake, Aichi, Japan. esaitoh@fujita-hu.ac.jp

Country: United States

AGENCY: United States NIDCD

GRANT: R0L DC02123

ACRONYM: DC

MEDLINETA: Dysphagia

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