Evidence map›Paper›PMID 18688720›Full record

Trial reportDigestive diseases and sciences2009

The role of gastroesophageal reflux in exercise-triggered asthma: a randomized controlled trial.

Kathryn A Peterson, Wayne M Samuelson, Darin T Ryujin, David C Young, Kristen L Thomas, Kristen Hilden, John C Fang

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Digestive diseases and sciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 14% 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

5 citing papers in PubMed, 2 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Impact of comorbid conditions on asthmatic adults and children.NPJ primary care respiratory medicine · 2020
    Review
  5. 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

7 authors at 2 institutions in 1 country.

Kathryn A PetersonDivision of Gastroenterology, University of Utah Health Sciences Center, Salt Lake City, UT 84132, USA. kathryn.peterson@hsc.utah.edu
Wayne M Samuelson
Darin T Ryujin
David C Young
Kristen L Thomas
Kristen Hilden
John C Fang
University of Utah · USUtah Department of Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExercise-triggered asthma (ETA) develops when physical activity triggers asthma symptoms during or directly after exercise. In patients prone to symptoms of supra-esophageal reflux, exercise may trigger gastroesophageal reflux (GER), resulting in such symptoms.

aimsTo determine the prevalence of abnormal pH in patients with ETA and to determine whether acid suppression improves symptoms in ETA patients.

methodsWe performed a randomized double-blind trial of rabeprazole versus placebo in the treatment of patients with ETA. Patients underwent treadmill protocol to determine their VO(2 max). Next, pH testing was initiated while undergoing a 30-min treadmill program exercising them at 65% of their VO(2 max). They were subsequently randomized to rabeprazole or placebo for 10 weeks. At the end of 10 weeks, exercise testing was repeated.

resultsA total of 31 patients completed the study (20 asthmatics, 11 non-asthmatics). Twenty-two out of 30 (73%) subjects had abnormal pH studies. For all subjects, rabeprazole improved symptoms more than placebo (P = 0.03). The association was stronger in the pH-positive group (P = 0.009).

conclusionAcid reflux is common in ETA patients. Many patients with exercise-related respiratory symptoms are misdiagnosed as chronic asthmatics. Exercise-related symptoms improve with the use of acid suppression. This study suggests that ETA patients may benefit from acid suppression.

Indexed as

2-PyridinylmethylsulfinylbenzimidazolesAdultAsthma, Exercise-InducedDouble-Blind MethodEsophageal pH MonitoringExercise TestFemaleGastroesophageal RefluxHumansHydrogen-Ion ConcentrationMaleProton Pump InhibitorsRabeprazole2-PyridinylmethylsulfinylbenzimidazolesProton Pump InhibitorsRabeprazole

Identifiers

PMID18688720
OpenAlexW2078323130

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.