Characterization of swallow modulation in response to bolus volume in healthy subjects accounting for catheter diameter

Objectives/Hypothesis Characterization of the pharyngeal swallow response to volume challenges is important for swallowing function assessment. The diameter of the pressure‐impedance recording catheter may influence these results. In this study, we captured key physiological swallow measures in resp...

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Bibliographic Details
Published in:The Laryngoscope 2018-06, Vol.128 (6), p.1328-1334
Main Authors: Ferris, Lara, Schar, Mistyka, McCall, Lisa, Doeltgen, Sebastian, Scholten, Ingrid, Rommel, Nathalie, Cock, Charles, Omari, Taher
Format: Article
Language:English
Subjects:
Adult
bolus volume
catheter diameter
Catheters
deglutition
Deglutition - physiology
Dysphagia
Esophageal Sphincter, Upper - anatomy & histology
Esophageal Sphincter, Upper - physiology
Esophagus
Female
Healthy Volunteers
Humans
impedance
Male
Manometry
Muscle Contraction
Pharynx - anatomy & histology
Pharynx - physiology
Physiology
Pressure
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Summary:Objectives/Hypothesis Characterization of the pharyngeal swallow response to volume challenges is important for swallowing function assessment. The diameter of the pressure‐impedance recording catheter may influence these results. In this study, we captured key physiological swallow measures in response to bolus volume utilizing recordings acquired by two catheters of different diameter. Study Design Ten healthy adults underwent repeat investigations with 8‐ and 10‐Fr catheters. Liquid bolus swallows of volumes 2.5, 5, 10, 20, and 30 mL were recorded. Measures indicative of distension, contractility, and flow timing were assessed. Methods Pressure‐impedance recordings with pressure‐flow analysis were used to capture key distension, contractility, and pressure‐flow timing parameters. Results Larger bolus volumes increased upper esophageal sphincter distension diameter (P 
ISSN:0023-852X
1531-4995
DOI:10.1002/lary.26820