Advanced

An experimental manometric study simulating upper esophageal sphincter narrowing

Olsson, R; Nilsson, H and Ekberg, Olle LU (1994) In Investigative Radiology 29(6). p.630-635
Abstract
RATIONALE AND OBJECTIVES. Elevated intrabolus pressure above a pharyngeal narrowing has been postulated as an important finding in patients with cricopharyngeal bars. To elucidate the significance of intrabolus pressure around lumen narrowings in the pharynx, intraluminal pressure characteristics were evaluated in a laboratory model simulating upper esophageal sphincter narrowing. METHODS. Intraluminal solid-state manometry was performed in an experimental model in which variable narrowing was created in an expandable balloon simulating the pharyngeal walls. RESULTS. Intrabolus pressure was dependent on the position of the manometric sensor, degree of lumen narrowing, bolus volume, flow rate, and fluid viscosity. CONCLUSIONS. Elevated... (More)
RATIONALE AND OBJECTIVES. Elevated intrabolus pressure above a pharyngeal narrowing has been postulated as an important finding in patients with cricopharyngeal bars. To elucidate the significance of intrabolus pressure around lumen narrowings in the pharynx, intraluminal pressure characteristics were evaluated in a laboratory model simulating upper esophageal sphincter narrowing. METHODS. Intraluminal solid-state manometry was performed in an experimental model in which variable narrowing was created in an expandable balloon simulating the pharyngeal walls. RESULTS. Intrabolus pressure was dependent on the position of the manometric sensor, degree of lumen narrowing, bolus volume, flow rate, and fluid viscosity. CONCLUSIONS. Elevated intrabolus pressure is an important finding. Intrabolus pressure is dependent on many parameters, and hence, is difficult to evaluate. If results found with this model hold true in patients, manometric sensor positioning is crucial, and concurrent fluoroscopy is highly recommended to achieve a standardized manometric technique in pharyngeal manometry. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Investigative Radiology
volume
29
issue
6
pages
630 - 635
publisher
Lippincott Williams & Wilkins
external identifiers
  • pmid:8088972
  • scopus:0028318210
ISSN
0020-9996
language
English
LU publication?
yes
id
773205e8-c66e-46d2-a59a-2fe1e86f60fa (old id 1108081)
date added to LUP
2008-07-23 12:18:46
date last changed
2017-09-10 03:44:54
@article{773205e8-c66e-46d2-a59a-2fe1e86f60fa,
  abstract     = {RATIONALE AND OBJECTIVES. Elevated intrabolus pressure above a pharyngeal narrowing has been postulated as an important finding in patients with cricopharyngeal bars. To elucidate the significance of intrabolus pressure around lumen narrowings in the pharynx, intraluminal pressure characteristics were evaluated in a laboratory model simulating upper esophageal sphincter narrowing. METHODS. Intraluminal solid-state manometry was performed in an experimental model in which variable narrowing was created in an expandable balloon simulating the pharyngeal walls. RESULTS. Intrabolus pressure was dependent on the position of the manometric sensor, degree of lumen narrowing, bolus volume, flow rate, and fluid viscosity. CONCLUSIONS. Elevated intrabolus pressure is an important finding. Intrabolus pressure is dependent on many parameters, and hence, is difficult to evaluate. If results found with this model hold true in patients, manometric sensor positioning is crucial, and concurrent fluoroscopy is highly recommended to achieve a standardized manometric technique in pharyngeal manometry.},
  author       = {Olsson, R and Nilsson, H and Ekberg, Olle},
  issn         = {0020-9996},
  language     = {eng},
  number       = {6},
  pages        = {630--635},
  publisher    = {Lippincott Williams & Wilkins},
  series       = {Investigative Radiology},
  title        = {An experimental manometric study simulating upper esophageal sphincter narrowing},
  volume       = {29},
  year         = {1994},
}