scholarly journals Pharyngo‐Esophageal Modulatory Swallow Responses to Bolus Volume and Viscosity Across Time

2021 ◽  
Author(s):  
Joeke L. Nollet ◽  
Per Cajander ◽  
Lara F. Ferris ◽  
Jordache Ramjith ◽  
Taher I. Omari ◽  
...  
Keyword(s):  
Bolus Volume

Manofluorographic Analysis of Bolus Volume Effect in Normal Swallowing

2006 ◽  
Vol 57 (4) ◽  
pp. 351-362 ◽  
Author(s):  
Yuko Matsumura ◽  
Takehiro Karaho ◽  
Tetsuya Tanabe ◽  
Satoshi Kitahara
Keyword(s):  
Volume Effect ◽  
Bolus Volume ◽  
Normal Swallowing

Effects of the bolus volume on hyoid movements in normal individuals

2013 ◽  
Vol 40 (7) ◽  
pp. 491-499 ◽  
Author(s):  
N. Ueda ◽  
K. Nohara ◽  
Y. Kotani ◽  
N. Tanaka ◽  
K. Okuno ◽  
...  
Keyword(s):  
Bolus Volume ◽  
Normal Individuals

scholarly journals The Effect of Bolus Volume on Hyoid Kinematics in Healthy Swallowing

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Ahmed Nagy ◽  
Sonja M. Molfenter ◽  
Melanie Péladeau-Pigeon ◽  
Shauna Stokely ◽  
Catriona M. Steele
Keyword(s):  
Peak Velocity ◽  
Upper Esophageal Sphincter ◽  
Healthy Population ◽  
Bolus Volume ◽  
Velocity Increase ◽  
Movement Distance ◽  
Hyoid Movement ◽  
Laryngeal Vestibule ◽  
Esophageal Sphincter ◽  
Liquid Bolus

Hyoid movement in swallowing is biomechanically linked to closure of the laryngeal vestibule for airway protection and to opening of the upper esophageal sphincter. Studies suggest that the range of hyoid movement is highly variable in the healthy population. However, other aspects of hyoid movement such as velocity remain relatively unexplored. In this study, we analyze data from a sample of 20 healthy young participants (10 male) to determine whether hyoid movement distance, duration, velocity, and peak velocity vary systematically with increases in thin liquid bolus volume from 5 to 20 mL. The temporal correspondence between peak hyoid velocity and laryngeal vestibule closure was also examined. The results show that maximum hyoid position and peak velocity increase significantly for 20 mL bolus volumes compared to smaller volumes, and that the timing of peak velocity is closely linked to achieving laryngeal vestibule closure. This suggests that generating hyoid movements with increased power is a strategy for handling larger volumes.

Effect of Age, Sex, Bolus Volume, and Bolus Consistency on Whiteout Duration in Healthy Subjects During FEES

Dysphagia ◽  
2018 ◽  
Vol 34 (2) ◽  
pp. 192-200 ◽  
Author(s):  
Francesco Mozzanica ◽  
Rosaria Lorusso ◽  
Carlo Robotti ◽  
Tania Zambon ◽  
Pietro Corti ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Bolus Volume ◽  
Bolus Consistency ◽  
Effect Of Age

Pyeloureteral dynamics in the intact and chronically obstructed multicalyceal kidney

1981 ◽  
Vol 241 (5) ◽  
pp. R398-R411 ◽  
Author(s):  
C. E. Constantinou ◽  
J. C. Djurhuus
Keyword(s):  
Urinary Tract ◽  
Ureteral Obstruction ◽  
Intravenous Infusion ◽  
Upper Urinary Tract ◽  
Urine Flow ◽  
Hierarchical Organization ◽  
Bolus Volume ◽  
Pelvic Contractions ◽  
The Mean ◽  
Pelvic Pressure

The transport of urine in the upper urinary tract of the multicalyceal kidney was studied in healthy and chronically obstructed pigs in terms of renal pelvic pressure, rate of and coordination of ureteral contractions, and bolus volume. The variations of these parameters to diuresis was examined by incremental elevation of urine output effected by intravenous infusion of mannitol. In 16 healthy animals the mean variation in urine flow was 0.01-3.20 ml/min, the change in peristaltic rate ranged from 0.763 to 5.125 min-1, and bolus volume from 0.003 to 2.083 ml.. In 14 chronically obstructed kidneys, for a mean variation in urine flow of 0.006-5.4 ml/min, peristaltic rate ranged from 0.237 to 6.095 min-1 and bolus volume from 0.00 to 1.80 ml. Discoordinated contractions, bursts of peristalsis, and incompletely transmitted pelvic contractions were characteristic of a chronically obstructed system. These observations are compared with the unobstructed unicalyceal and multicalyceal kidney. The disrupting impact of chronic ureteral obstruction on the hierarchical organization of the pyeloureteral pacemaker system is discussed.

Influence of attention and bolus volume on brain organization during swallowing

2017 ◽  
Vol 223 (2) ◽  
pp. 955-964
Author(s):  
Iva Jestrović ◽  
James L. Coyle ◽  
Subashan Perera ◽  
Ervin Sejdić
Keyword(s):  
Bolus Volume ◽  
Brain Organization

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

2017 ◽  
Vol 128 (6) ◽  
pp. 1328-1334 ◽  
Author(s):  
Lara Ferris ◽  
Mistyka Schar ◽  
Lisa McCall ◽  
Sebastian Doeltgen ◽  
Ingrid Scholten ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Bolus Volume

Determinants of intrabolus pressure during esophageal peristaltic bolus transport

1993 ◽  
Vol 264 (3) ◽  
pp. G407-G413 ◽  
Author(s):  
J. Ren ◽  
B. T. Massey ◽  
W. J. Dodds ◽  
M. K. Kern ◽  
J. G. Brasseur ◽  
...  
Keyword(s):  
Pressure Differential ◽  
Peristaltic Transport ◽  
Abdominal Compression ◽  
Bolus Volume ◽  
Fluid Bolus ◽  
Important Indicator ◽  
Normal Volunteers ◽  
Volume Viscosity ◽  
Manometric Studies

Previous manometric studies of esophageal fluid bolus transport in humans have generally ignored the hydrodynamic distinction between intrabolus pressure and pressure within the lumen-occluded, contracting esophageal segment. In this study we obtained concurrent esophageal videofluoroscopic and intraluminal manometric recordings in supine normal volunteers using different bolus volumes and viscosities and abdominal compression. Intrabolus pressure increased with bolus volume, viscosity, and abdominal compression. Esophageal diameter increased with larger bolus volumes, and this increase was correlated with increases in intrabolus pressure. Intrabolus pressure was highest in the bolus tail. Peak intraluminal pressures > 20 mmHg above basal intrabolus pressure almost invariably were associated with effective peristalsis, whereas values of this pressure differential < 20 mmHg frequently were associated with ineffective peristalsis and retrograde bolus escape. Intrabolus pressure can serve as an important indicator of the forces resisting peristaltic transport and the occurrence of ineffective bolus transport.

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