Evidence map›Paper›PMID 19222760›Full record

ArticleNeurogastroenterology and motility2009

Biomagnetic signatures of uncoupled gastric musculature.

L A Bradshaw, A Irimia, J A Sims, W O Richards

Open access · greenAbstract read
In one paragraph

Article in Neurogastroenterology and motility, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.0field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 33 citations in OpenAlex.

  1. Multichannel magnetogastrogram: a clinical marker for pediatric chronic nausea.American journal of physiology. Gastrointestinal and liver physiology · 2022
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Characterization of Electrophysiological Propagation by Multichannel Sensors.IEEE transactions on bio-medical engineering · 2016
    Article
  8. Article
  9. Noninvasive biomagnetic detection of intestinal slow wave dysrhythmias in chronic mesenteric ischemia.American journal of physiology. Gastrointestinal and liver physiology · 2015
    Article
  10. Article
  11. Noninvasive biomagnetic detection of isolated ischemic bowel segments.IEEE transactions on bio-medical engineering · 2013
    Article
  12. Article
  13. Article
  14. Review
  15. Gastric motility physiology and surgical intervention.The Surgical clinics of North America · 2011
    Review
  16. Article
  17. Article
  18. Article
  19. Origin and propagation of human gastric slow-wave activity defined by high-resolution mapping.American journal of physiology. Gastrointestinal and liver physiology · 2010
    Article
  20. Review
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

4 authors at 4 institutions in 1 country.

L A BradshawDepartment of Surgery, Vanderbilt University Medical Center, Nashville, TN 37235, USA. alan.bradshaw@vanderbilt.edu
A Irimia
J A Sims
W O Richards
University of California, San Diego · USUniversity of North Carolina at Chapel Hill · USVanderbilt University · USVanderbilt University Medical Center · US

Funding

BIOMAGNETIC CHARACTERIZATION OF GASTRIC DYSRHYTHMIASR01DK058697 · NIDDK · VANDERBILT UNIVERSITY MEDICAL CENTER · PI BRADSHAW, LEONARD A · 2001 to 2013
$3.1M
Biomagnetic Signals of Intestinal IschemiaR01DK058197 · NIDDK · VANDERBILT UNIVERSITY · PI RICHARDS, WILLIAM O · 2002 to 2009
$2.6M
NIDDK NIH HHS 1 R01 DK58197NIDDK NIH HHS 1 R01 DK58697NIDDK NIH HHS R01 DK058197NIDDK NIH HHS R01 DK058697
6 · The paper itself

Abstract

Gastric slow waves propagate in the electrical syncytium of the healthy stomach, being generated at a rate of approximately three times per minute in a pacemaker region along the greater curvature of the antrum and propagating distally towards the pylorus. Disease states are known to alter the normal gastric slow wave. Recent studies have suggested the use of biomagnetic techniques for assessing parameters of the gastric slow wave that have potential diagnostic significance. We present a study in which the gastric syncytium was uncoupled by mechanical division as we recorded serosal electric potentials along with multichannel biomagnetic signals and cutaneous potentials. By computing the surface current density (SCD) from multichannel biomagnetic recordings, we were able to quantify gastric slow wave propagation as well as the frequency and amplitude of the slow wave and to show that these correlate well with similar parameters from serosal electrodes. We found the dominant slow wave frequency to be an unreliable indicator of gastric uncoupling as uncoupling results in the appearance of multiple slow wave sources at various frequencies in external recordings. The percentage of power distributed in specific frequency ranges exhibited significant postdivision changes. Propagation velocity determined from SCD maps was a weak indicator of uncoupling in this work; we believe that the relatively low spatial resolution of our 19-channel biomagnetometer confounds the characterization of spatial variations in slow wave propagation velocities. Nonetheless, the biomagnetic technique represents a non-invasive method for accurate determination of clinically significant parameters of the gastric slow wave.

Indexed as

AnimalsElectrophysiologyMagneticsMuscle, SmoothMyoelectric Complex, MigratingStomachSwine

Identifiers

PMID19222760
PMCPMC2855967
OpenAlexW2005948803

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.