Evidence map›Paper›PMID 27241210›Full record

ArticleJournal of gastroenterology2017

Impairment of chemical clearance and mucosal integrity distinguishes hypersensitive esophagus from functional heartburn.

Marzio Frazzoni, Nicola de Bortoli, Leonardo Frazzoni, Manuele Furnari, Irene Martinucci, Salvatore Tolone, Andrea Farioli, Santino Marchi, Lorenzo Fuccio, Vincenzo Savarino and 1 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Journal of gastroenterology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
9.5field-weighted citation impact, top 2% 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 122 citations in OpenAlex.

  1. ACG Clinical Guidelines: Clinical Use of Esophageal Physiologic Testing.The American journal of gastroenterology · 2020
    Guideline
  2. Review
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  10. Mucosal impedance as a diagnostic tool for gastroesophageal reflux disease: an update for clinicians.Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus · 2024
    Review
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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

11 authors at 4 institutions in 1 country.

Marzio FrazzoniDigestive Pathophysiology Unit, Baggiovara Hospital, Viale Giardini, 1355, 41100, Modena, Italy. marziofrazzoni@gmail.com.
Nicola de BortoliDepartment of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy.
Leonardo FrazzoniDepartment of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
Manuele FurnariGastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy.
Irene MartinucciDepartment of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy.
Salvatore ToloneGeneral and Bariatric Surgery Unit, Department of Surgery, 2nd University of Napoli, Naples, Italy.
Andrea FarioliDepartment of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
Santino MarchiDepartment of Translational Research and New Technology in Medicine and Surgery, University of Pisa, Pisa, Italy.
Lorenzo FuccioDepartment of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
Vincenzo SavarinoGastroenterology Unit, Department of Internal Medicine, University of Genoa, Genoa, Italy.
Edoardo SavarinoGastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy.
University of Bologna · ITUniversity of Pisa · ITUniversity of Genoa · ITUniversity of Padua · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHypersensitive esophagus (HE) is defined by endoscopy-negative heartburn with a normal acid exposure time but positive symptom association probability (SAP) and/or symptom index (SI) on impedance-pH monitoring, and proton pump inhibitor (PPI) responsiveness. Functional heartburn (FH) is distinguished by negative SAP/SI and PPI refractoriness. The clinical value of SAP and SI has been questioned. We aimed to investigate whether impairment of chemical clearance and of mucosal integrity, expressed by the postreflux swallow-induced peristaltic wave (PSPW) index and the mean nocturnal baseline impedance (MNBI), characterize HE independently of SAP and SI.

methodsImpedance-pH tracings from PPI-responsive endoscopy-negative patients, 125 with nonerosive reflux disease and 108 with HE, distinguished by an abnormal and a normal acid exposure time, and from 70 patients with FH were retrospectively selected and blindly reviewed.

resultsThe mean PSPW index and MNBI were significantly lower in nonerosive reflux disease (30 %, 1378 Ω) than in HE (51 %; 2274 Ω) and in both of them as compared with FH (76 %; 3445 Ω) (P = 0.0001). Both the PSPW index (adjusted odds ratio 0.863, P = 0.001) and the MNBI (adjusted odds ratio 0.998, P = 0.001) were independent predictors of HE; with their combined assessment, the area under the curve on receiver operating characteristic analysis was 0.957. SAP and/or SI was positive in 67 of the 108 HE patients (62 %), whereas the PSPW index and/or MNBI was abnormal in 99 of the 108 HE patients (92 %; P < 0.0001).

conclusionsHE is characterized by impairment of chemical clearance and mucosal integrity, which explains the increased reflux perception. When SAP and SI afford uncertain results, the PSPW index and MNBI should be analyzed.

Indexed as

AdultAgedElectric ImpedanceEsophageal pH MonitoringEsophagusFemaleGastroesophageal RefluxHeartburnHumansMaleMiddle AgedPeristalsisPredictive Value of TestsProton Pump InhibitorsRetrospective StudiesSensitivity and SpecificityProton Pump InhibitorsFunctional heartburnGERDHypersensitive esophaguspH Impedance monitoring

Identifiers

PMID27241210
OpenAlexW2419408094

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.