Evidence map›Paper›PMID 26116806›Full record

ArticleGastroenterology2015

Effects of the Learning Curve on Efficacy of Radiofrequency Ablation for Barrett's Esophagus.

Sarina Pasricha, Cary Cotton, Kelly E Hathorn, Nan Li, William J Bulsiewicz, W Asher Wolf, V Raman Muthusamy, Srinadh Komanduri, Herbert C Wolfsen, Ron E Pruitt and 3 more

Abstract readMulticenter Study
In one paragraph

Article in Gastroenterology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
5.9field-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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Endoscopic Eradication Therapy in Barrett's Esophagus.Techniques in gastrointestinal endoscopy · 2017
    Article
  12. The role of ablation in the treatment of dysplastic Barrett's esophagus.Therapeutic advances in gastrointestinal endoscopy
    Review
  13. 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

13 authors at 5 institutions in 1 country.

Sarina PasrichaDepartment of Medicine, Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Cary CottonDepartment of Medicine, Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Kelly E HathornDepartment of Medicine, Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Nan LiDepartment of Medicine, Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
William J BulsiewiczDepartment of Medicine, Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
W Asher WolfDepartment of Medicine, Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
V Raman MuthusamyDivision of Gastroenterology, Department of Medicine, UCLA School of Medicine, Los Angeles, California.
Srinadh KomanduriDivision of Gastroenterology, Department of Medicine, Northwestern University School of Medicine, Chicago, Illinois.
Herbert C WolfsenDivision of Gastroenterology, Department of Medicine, Mayo Clinic Florida, Jacksonville, Florida.
Ron E PruittNashville Gastrointestinal Specialists, Nashville, Tennessee.
Atilla ErtanDivision of Gastroenterology, Department of Medicine, University of Texas School of Medicine, Houston, Texas.
Gary W ChmielewskiDivision of Thoracic and Cardiac Surgery, Department of Surgery, Rush Medical College, Chicago, Illinois.
Nicholas J ShaheenDepartment of Medicine, Center for Esophageal Diseases and Swallowing, Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina. Electronic address: nshaheen@med.unc.edu.
University of North Carolina at Chapel Hill · USMayo Clinic in Florida · USNashville Oncology Associates · USNorthwestern University · USUniversity of California, Los Angeles · US

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
PILOT AND FEASIBILITY STUDIESP30DK034987 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ROBERT S. SANDLER · 1985 to 2026
$30.5M
DIGESTIVE DISEASES EPIDEMIOLOGY TRAINING PROGRAMT32DK007634 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI ROBERT S. SANDLER · 1990 to 2026
$7.4M
Non-Endoscopic Surveillance for Barrett's Esophagus Following Ablative TherapyK24DK100548 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI SHAHEEN, NICHOLAS J · 2013 to 2017
$896k
NCI NIH HHS P30 CA060553NIDDK NIH HHS K24 DK100548NIDDK NIH HHS K24DK100548NIDDK NIH HHS P30 DK034987NIDDK NIH HHS T32 DK007634NIDDK NIH HHS T32 DK07634
6 · The paper itself

Abstract

BACKGROUND &

aimsComplete eradication of Barrett's esophagus (BE) often requires multiple sessions of radiofrequency ablation (RFA). Little is known about the effects of case volume on the safety and efficacy of RFA or about the presence or contour of learning curves for this procedure.

methodsWe collected data from the US RFA Patient Registry (from 148 institutions) for patients who underwent RFA for BE from July 2007 to July 2011. We analyzed the effects of the number of patients treated by individual endoscopists and individual centers on safety and efficacy outcomes of RFA. Outcomes, including stricture, bleeding, hospitalization, and complete eradication of intestinal metaplasia (CEIM), were assessed using logistic regression. The effects of center and investigator experience on numbers of treatment sessions to achieve CEIM were examined using linear regression.

resultsAfter we controlled for potential confounders, we found that as the experience of endoscopists and centers increased with cases, the numbers of treatment sessions required to achieve CEIM decreased. This relationship persisted after adjusting for patient age, sex, race, length of BE, and presence of pretreatment dysplasia (P < .01). Center experience was not significantly associated with overall rates of CEIM or complete eradication of dysplasia. We did not observe any learning curve with regard to risks of stricture, gastrointestinal bleeding, perforation, or hospitalization (P > .05).

conclusionsBased on analysis of a large multicenter registry, efficiency of the treatment, as measured by number of sessions needed to achieve CEIM, increased with case volume, indicating a learning curve effect. This trend began to disappear after treatment of approximately 30 patients by the center or individual endoscopist. However, there was no significant association between safety or efficacy outcomes and previous case volume.

Indexed as

Catheter AblationClinical CompetenceEsophagoscopyLearning CurveAdenocarcinomaAgedBarrett EsophagusEsophageal NeoplasmsFemaleHospitals, High-VolumeHospitals, Low-VolumeHumansLeast-Squares AnalysisLinear ModelsLogistic ModelsMaleCancer PreventionDatabase AnalysisEndoscopyTraining

Identifiers

PMID26116806
PMCPMC4584171
OpenAlexW2005251899

What OpenQuestion holds

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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.