Pharyngeal pressure differences between four types of swallowing in healthy participants

Al-Toubi, Aamir K.; Doeltgen, Sebastian; Daniels, Stephanie K.; Corey, David M.; Huckabee, Maggie‐Lee

doi:10.1016/j.physbeh.2014.12.029

Cited by 9 publications

(7 citation statements)

References 13 publications

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“…A longer pressure duration for a viscous bolus was observed by Al-Toubi et al [16], analogous to the findings of the present study. In the present study, higher values for pressure duration were noted, as compared to those reported by Al-Toubi et al [16]. This is due to the much higher viscosities of the boluses (1 Pa s and 2 Pa s), as compared to the swallowing of saliva and water investigated by Al-Toubi and colleagues.…”

Section: Discussionsupporting

confidence: 92%

See 1 more Smart Citation

Assessment of the Food-Swallowing Process Using Bolus Visualisation and Manometry Simultaneously in a Device that Models Human Swallowing

Qazi

Ekberg

Wiklund³

et al. 2019

Dysphagia

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The characteristics of the flows of boluses with different consistencies, i.e. different rheological properties, through the pharynx have not been fully elucidated. The results obtained using a novel in vitro device, the Gothenburg Throat, which allows simultaneous bolus flow visualisation and manometry assessments in the pharynx geometry, are presented, to explain the dependence of bolus flow on bolus consistency. Four different bolus consistencies of a commercial food thickener, 0.5, 1, 1.5 and 2 Pa s (at a shear rate of 50 s−1)—corresponding to a range from low honey-thick to pudding-thick consistencies on the National Dysphagia Diet (NDD) scale—were examined in the in vitro pharynx. The bolus velocities recorded in the simulator pharynx were in the range of 0.046–0.48 m/s, which is within the range reported in clinical studies. The corresponding wall shear rates associated with these velocities ranged from 13 s−1 (pudding consistency) to 209 s−1 (honey-thick consistency). The results of the in vitro manometry tests using different consistencies and bolus volumes were rather similar to those obtained in clinical studies. The in vitro device used in this study appears to be a valuable tool for pre-clinical analyses of thickened fluids. Furthermore, the results show that it is desirable to consider a broad range of shear rates when assessing the suitability of a certain consistency for swallowing.

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Section: Discussionsupporting

confidence: 92%

“…Manometry is an important tool for measuring pressure variations during swallowing using an in-dwelling catheter [15, 16]. Studies have shown that when the bolus volume and viscosity are increased, the recorded intra-luminal pressure also increases, which means that greater force is needed to transport a bolus of larger volume [17, 18].…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Food-Swallowing Process Using Bolus Visualisation and Manometry Simultaneously in a Device that Models Human Swallowing

Qazi

Ekberg

Wiklund³

et al. 2019

Dysphagia

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“…Manofluoroskopie, stellt Zusammenhänge zwischen schluckrelevanten Bewegungen und Drücken im Oro-und Hypopharynx inkl. oÖS dar [40,41]. Auch für die HRM wurden Normdaten publiziert [42,43].…”

Section: Weitere Innovative Instrumentelle Verfahrenunclassified

Dysphagie – instrumentelle Diagnostik im sprachtherapeutischen Arbeitsfeld

Pluschinski¹,

Hofmayer²,

Peter³

2021

neuroreha

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“…Es lag also in der pharyngealen Phase keine Veränderung der Drücke beim Schlucken unterschiedlicher Wasservolumina vor. Ein unveränderter Maximaldruck im oÖS nach der Sphinkterrelaxation ist somit kongruent zu vorangegangenen Untersuchungen [13,14], ein größerer Minimaldruck [26] oder ein geringerer Druck in der Zungengrundregion [14] bei größeren Schluckvolumina kann nicht bestätigt werden.…”

Section: Diskussionunclassified

Einfluss des Schluckvolumens auf die Pharynxdynamik, evaluiert mit dünnen Hochauflösungsmanometriesonden

2017

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The bolus volume has a modulating effect on the swallowing dynamics, but previously reported adaptations of the pharyngeal function have been inconsistent. Therefore, the aim of this study was to comprehensively evaluate changes of pressure and time parameters in the pharynx and upper esophageal sphincter (UES) in relation to the swallowed bolus volume with high-resolution manometry (HRM). To examine the normal swallowing physiology, particularly thin HRM probes were used, which were expected to influence the investigated structures only minimally.10 healthy volunteers accomplished 10 swallows with 2 and 10 ml water respectively in an upright position, while an HRM-examination was performed. Pressure and time parameters of the velopharynx, the tongue base region and the UES were determined and analyzed for statistical differences with respect to the bolus volume.Swallowing larger bolus volumes resulted in both, a longer closure of the velopharynx and in a longer opening of the UES. Volume dependent pressure changes in the pharyngeal swallowing sequence were not detectable.Under the chosen test conditions, bolus volume had an impact on the time parameters of the pharyngeal phase, thus, temporal adaptations of the automated swallowing dynamics were detected. Changes in pharyngeal pressure parameters as shown in other studies cannot be confirmed. They may be due to HRM probes with a larger diameter, which take an effect on the pharyngeal structures themselves. With regard to diagnostic aspects, HRM studies should always be conducted with different bolus volumes in order to investigate the swallowing process completely.

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Pharyngeal pressure differences between four types of swallowing in healthy participants

Cited by 9 publications

References 13 publications

Assessment of the Food-Swallowing Process Using Bolus Visualisation and Manometry Simultaneously in a Device that Models Human Swallowing

Assessment of the Food-Swallowing Process Using Bolus Visualisation and Manometry Simultaneously in a Device that Models Human Swallowing

Dysphagie – instrumentelle Diagnostik im sprachtherapeutischen Arbeitsfeld

Einfluss des Schluckvolumens auf die Pharynxdynamik, evaluiert mit dünnen Hochauflösungsmanometriesonden

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