Document Detail


Preterm infant swallowing of thin and nectar-thick liquids: changes in lingual-palatal coordination and relation to bolus transit.
MedLine Citation:
PMID:  23274694     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Tongue-soft palate coordination and bolus head pharyngeal transit were studied by means of postacquisition kinematic analysis of videofluoroscopic swallowing images of ten preterm infants referred from hospital NICUs due to poor oral feeding and suspicion of aspiration. Sequences of coordinated tongue-soft palate movements and bolus transits during swallows of thin-consistency and nectar-thick-consistency barium were digitized, and time series data were used to calculate continuous relative phase, a measure of coordination. During swallows of nectar-thick compared to thin barium, tongue-soft palate coordination was more likely to be antiphase, bolus head pharyngeal transit time was longer, and coordination was significantly correlated with bolus head pharyngeal transit. Analysis of successive swallows indicated that tongue-soft palate coordination variability decreased with nectar-thick but not with thin-consistency barium. Together, the results suggest that slower-moving bolus transits may promote greater opportunity for available sensory information to be used to modulate timing of tongue-soft palate movements so that they are more effective for pumping liquids.
Authors:
Eugene C Goldfield; Vincent Smith; Carlo Buonomo; Jennifer Perez; Kara Larson
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural     Date:  2013-01-01
Journal Detail:
Title:  Dysphagia     Volume:  28     ISSN:  1432-0460     ISO Abbreviation:  Dysphagia     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-06-03     Completed Date:  2014-01-22     Revised Date:  2014-06-03    
Medline Journal Info:
Nlm Unique ID:  8610856     Medline TA:  Dysphagia     Country:  United States    
Other Details:
Languages:  eng     Pagination:  234-44     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Biomechanical Phenomena
Deglutition / drug effects*
Female
Fluoroscopy / methods
Humans
Infant, Newborn
Infant, Premature / physiology*
Male
Palate, Soft / physiology*
Pharynx / physiology*
Plant Nectar / administration & dosage*,  chemistry
Time Factors
Tongue / physiology*,  radiography
Video Recording
Grant Support
ID/Acronym/Agency:
P01 HD18655/HD/NICHD NIH HHS; R01 DC 007127/DC/NIDCD NIH HHS; R01 DC007127/DC/NIDCD NIH HHS
Chemical
Reg. No./Substance:
0/Plant Nectar
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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