Effects of Carbonated Vs. Thin and Thickened Liquids on Swallowing in Adults With Neurogenic Oropharyngeal Dysphagia
Year: 2007
Type: article
Abstract: This study examined the hypothesis that adults with stroke and oropharyngeal dysphagia (swallowing dysfunction) would exhibit immediate improvements in selected parameters of swallowing in response to a carbonated stimulus vs. thin, nectar-like, and honey-like thickened liquids.The experiment was designed to replicate previous work with methodological improvements.Fourteen adults with stroke were enrolled in this prospective study.Participants were observed swallowing various stimuli under videofluoroscopy.Measures and ratings of stage transition duration (STD), pharyngeal transit time (PTT), pharyngeal residue (PR), penetration and aspiration (PENASP) and bolus position at the onset of the swallow (BPOS) were recorded.The results of this study partially supported previous findings.Participants had significantly shorter STD and pharyngeal transit times PTT when drinking carbonated thin liquids than when drinking nectar-thick and honey-thick liquids.However, there were no significant differences between STD and PTT between carbonated and thin liquids.In another contrast to previous research, there was no reduction in penetration, aspiration, or pharyngeal residue with carbonated vs. other liquids.On the contrary, there was an increase in penetration/aspiration on swallows of carbonated vs. honey-thick liquids.Possible explanations for the differences between the present results and those of earlier studies are discussed.
Author: Catherine Rachel Krival
Institution: University of Cincinnati
Language: English
Subfield: Speech and Hearing
Field: Health Professions
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W1576915207