Evidence map›Paper›PMID 22235880›Full record

ArticleNeurogastroenterology and motility2012

Topographic and manometric characterization of the recto-anal inhibitory reflex.

G Cheeney, M Nguyen, J Valestin, S S C Rao

Registry-linked trialAbstract read
In one paragraph

Article in Neurogastroenterology and motility, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02782377 (Evaluation of the Rectal Reflex Using Anal Acoustic Reflectometry), which is not on this map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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.

NCT02782377 completednot on this mapstarted 2016, after this paper: background citation

Evaluation of the Rectal Reflex Using Anal Acoustic Reflectometry

TypeobservationalSponsorManchester University NHS Foundation TrustRan2016 to 2017Enrolled40ConditionsPelvic Floor Dysfunction
3 · Its place in the literature

Who cites it

25 citing papers in PubMed.

  1. The anorectal defaecation reflex: a prospective intervention study.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2022
    Trial
  2. Trial
  3. Article
  4. Interrater reliability in pediatric high-resolution anorectal manometry recordings.Journal of pediatric gastroenterology and nutrition · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Control of Motility in the Internal Anal Sphincter.Journal of neurogastroenterology and motility · 2019
    Article
  14. Observational
  15. Article
  16. Article
  17. Article
  18. How to Perform and Interpret a High-resolution Anorectal Manometry Test.Journal of neurogastroenterology and motility · 2016
    Article
  19. Role of Anorectal Manometry in Clinical Practice.Current treatment options in gastroenterology · 2015
    Article
  20. Accuracy and Reproducibility of High-definition Anorectal Manometry and Pressure Topography Analyses in Healthy Subjects.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2015
    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

4 authors.

G CheeneySection of Neurogastroenterology, Division of Gastroenterology - Hepatology, Department of Internal Medicine, University of Iowa College of Medicine, IA, USA.
M Nguyen
J Valestin
S S C Rao

Funding

Novel Treatment Strategies for Constipation and Role of Brain-Gut axisR01DK057100 · NIDDK · UNIVERSITY OF IOWA · PI RAO, SATISH SC · 2000 to 2011
$2.7M
NIDDK NIH HHS R01 DK057100NIDDK NIH HHS R01DK 57100-03
6 · The paper itself

Abstract

backgroundRecto-anal inhibitory reflex (RAIR) is an integral part of normal defecation. The physiologic characteristics of RAIR along anal length and anterior-posterior axis are unknown. The aim of this study was to perform topographic and vector-graphic evaluation of RAIR along anal canal using high definition manometry (HDM), and examine the role of various muscle components.

methodsAnorectal topography was assessed in 10 healthy volunteers using HDM probe with 256 sensors. Recto-anal inhibitory reflex data were analyzed every mm along the length of anal canal for topographic, baseline, residual, and plateau pressures during five mean volumes of balloon inflation (15 cc, 40 cc, 71 cc, 101 cc, 177 cc), and in 3D by dividing anal canal into 4 × 2.1 mm grids. KEY

resultsRelaxation pressure progressively increases along anal canal with increasing balloon volume up to 71 cc and thereafter plateaus. In 3D, RAIR is maximally seen at the middle and upper portions of anal canal (levels 1.2-3.2 cm) and posteriorly. Peak residual pressure was seen at proximal anal canal. CONCLUSIONS & INFERENCES: Recto-anal inhibitory reflex is characterized by differential anal relaxation along anterior-posterior axis, longitudinally along the length of anal canal, and it depends on the rectal distention volume. It is maximally seen at internal anal sphincter pressure zone. Multidimensional analyses indicate that external anal sphincter provides bulk of anal residual pressure. Our findings emphasize importance of sensor location and orientation; as anterior and more distal location may miss RAIR.

Indexed as

AdultAnal CanalDefecationFemaleHumansMaleManometryMuscle, SmoothPressureRectumReflex

Identifiers

PMID22235880
PMCPMC4566956

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

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.