Evidence map›Paper›PMID 22108449›Full record

Trial reportThe American journal of gastroenterology2012

A double-blind sham-controlled study of the effect of radiofrequency energy on symptoms and distensibility of the gastro-esophageal junction in GERD.

J Arts, R Bisschops, K Blondeau, R Farré, R Vos, L Holvoet, P Caenepeel, A Lerut, Jan Tack

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in The American journal of gastroenterology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 5 pooled it
5.7field-weighted citation impact, top 4% 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

54 citing papers in PubMed, 5 syntheses or guidelines pooled it, 127 citations in OpenAlex.

  1. Pooled it
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  6. Trial
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  9. American Society for Gastrointestinal Endoscopy guideline on the diagnosis and management of GERD: methodology and review of evidence.VideoGIE : an official video journal of the American Society for Gastrointestinal Endoscopy · 2025
    Article
  10. Review
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  12. Review
  13. Refractory Gastroesophageal Reflux Disease: Diagnosis and Management.Journal of neurogastroenterology and motility · 2024
    Review
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  19. Role of Endoscopy in Motility Disorders of Upper Gastrointestinal Tract.Journal of neurogastroenterology and motility · 2023
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

J ArtsDepartment of Gastroenterology, University Hospital Gasthuisberg, University of Leuven, Leuven, Belgium.
R Bisschops
K Blondeau
R Farré
R Vos
L Holvoet
P Caenepeel
A Lerut
Jan Tack
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesSeveral studies have reported symptom relief in gastro-esophageal reflux disease (GERD) patients treated with radiofrequency delivery (Stretta procedure) at the gastro-esophageal junction (GEJ), but the mechanism underlying this improvement is unclear. The objective of this study was to test the hypothesis that Stretta alters GEJ resistance.

methodsWe conducted a double-blind randomized cross-over study of Stretta and sham treatment. Consecutive GERD patients were included in the study. The study was conducted in a tertiary care center. Patients underwent two upper gastrointestinal endoscopies with 3 months interval, during which active or sham Stretta treatment was performed in a randomized double-blind manner. Symptom assessment, endoscopy, manometry, 24-h esophageal pH monitoring, and a distensibility test of the GEJ were done before the start of the study and after 3 months.

resultsBarostat distensibility test of the GEJ before and after administration of sildenafil was the main outcome measure. In all, 22 GERD patients (17 females, mean age 47±12 years) participated in the study; 11 in each group. Initial sham treatment did not affect any of the parameters studied. Three months after initial Stretta procedure, no changes were observed in esophageal acid exposure and lower esophageal sphincter (LES) pressure. In contrast, symptom score was significantly improved and GEJ compliance was significantly decreased. Administration of sildenafil, an esophageal smooth muscle relaxant, normalized GEJ compliance again to pre-Stretta level, arguing against GEJ fibrosis as the underlying mechanism.

conclusionsThe limitation of this study was reflux evaluation did not include impedance monitoring. In this sham-controlled study, Stretta improved GERD symptoms and decreased GEJ compliance. Decreased GEJ compliance, which reflects altered LES neuromuscular function, may contribute to symptomatic benefit by decreasing refluxate volume.

Indexed as

Electric Stimulation TherapyAdultCross-Over StudiesDouble-Blind MethodEsophagogastric JunctionEsophagoscopyEsophagusFemaleGastroesophageal RefluxHumansMaleMiddle AgedQuality of LifeTreatment Outcome

Identifiers

PMID22108449
OpenAlexW1982528814

What OpenQuestion holds

Textmetadata
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.