Evidence map›Paper›PMID 31218485›Full record

ArticleAnnals of biomedical engineering2019

Experimental and Computational Investigation of the IDDSI Flow Test of Liquids Used in Dysphagia Management.

Ben Hanson, Rashid Jamshidi, Andrew Redfearn, Ryan Begley, Catriona M Steele

Open access · hybridAbstract read
In one paragraph

Article in Annals of biomedical engineering, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
7.3field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Texture-Modified Food for Dysphagic Patients: A Comprehensive Review.International journal of environmental research and public health · 2021
    Review
  13. Article
  14. Review
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Ben HansonUCL Mechanical Engineering, Torrington Place, London, WC1E 7JE, UK. b.hanson@ucl.ac.uk.ORCID http://orcid.org/0000-0003-4661-6778
Rashid JamshidiUCL Chemical Engineering, Torrington Place, London, WC1E 7JE, UK.
Andrew RedfearnUCL Mechanical Engineering, Torrington Place, London, WC1E 7JE, UK.
Ryan BegleyUCL Mechanical Engineering, Torrington Place, London, WC1E 7JE, UK.
Catriona M SteeleToronto Rehabilitation Institute - University Health Network, 550 University Avenue, #12-101, Toronto, ON, M5G 2A2, Canada.
University College London · GBHanson & Associates (United Kingdom) · GBUniversity Health Network · CA

Funding

Establishing Reference Values and Clinical Decision Points for Quantitative Videofluoroscopic Measures of SwallowingR01AG077481 · NIA · UNIVERSITY HEALTH NETWORK · PI Emily Kate Plowman, Catriona Margaret Steele · 2022 to 2026
$4.3M
Tongue-pressure timing for liquid flow detection and control in swallowingR01DC011020 · NIDCD · UNIVERSITY HEALTH NETWORK · PI STEELE, CATRIONA MARGARET · 2010 to 2020
$2.9M
NIA NIH HHS R01 AG077481NIDCD NIH HHS DC011020NIDCD NIH HHS R01 DC011020
6 · The paper itself

Abstract

The International Dysphagia Diet Standardisation Initiative (IDDSI) flow test, using a standard 10-mL syringe, is being adopted in many countries for clinical measurement of the consistency of drinks. The working hypothesis is that thickening drinks to retard flow can be advantageous for individuals who struggle to cope with thin drinks. This study assesses how the IDDSI test relates to rheology and clinical knowledge of physiological flows during swallowing. With no pre-existing analytical solution for internal flow through the syringe, a computational model was designed, incorporating rheometry data from a variety of Newtonian and non-Newtonian liquids. The computational model was validated experimentally across the range of liquids but the technique showed limitations in simulating dripping and cohesiveness. Gum-based liquids which were strongly shear-thinning (0.12 < n < 0.25) showed plug-flow characteristics with 90% of the shear occurring in only 22% of the radial dimension. Shear rates were maximal at the nozzle outlet (> 60 times higher than the barrel) and reached 7400/s for the thinnest gum-based liquid. Shear rheology data alone was unable to describe the flow of these drinks. The flow conditions in the test varied according to the type and consistency of liquid, relating to the desired clinical effect.

Indexed as

Computer SimulationDeglutitionDeglutition DisordersHumansModels, TheoreticalRheologyViscosityFluid dynamicsInternational Dysphagia Diet Standardisation InitiativeNon-NewtonianRheologySwallowingTexture modificationThickened drinks

Identifiers

PMID31218485
PMCPMC6838027
OpenAlexW2950262015

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.