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Cochrane Database of Systematic Reviews: Plain Language Summaries [Internet]. Chichester, UK: John Wiley & Sons, Ltd; 2003-.

Cochrane Database of Systematic Reviews: Plain Language Summaries [Internet].

Gastro‐oesophageal reflux treatment for asthma in adults and children

This version published: 2008; Review content assessed as up-to-date: September 11, 2002.

Link to full article: [Cochrane Library]

Plain language summary

People with asthma also often have gastrooesophageal reflux (where acid from the stomach comes back up the gullet (esophagus)). Reflux is very common in people with asthma. It may be a trigger for asthma, or alternatively, asthma may trigger reflux. Treatments that can help reflux include antacids and drugs to suppress stomach acids or empty the stomach. This review of trials found that using reflux treatments does not generally help ease asthma symptoms. While asthma may be improved in some people, it was not possible to predict who might benefit.

Abstract

Background: Asthma and gastrooesophageal reflux are both common medical conditions and often co‐exist. Studies have shown conflicting results concerning the effects of lower oesophageal acidification as a trigger of asthma. Furthermore, asthma might precipitate gastro‐oesophageal reflux. Thus a temporal association between the two does not establish that gastro‐oesophageal reflux triggers asthma. Randomised trials of a number of treatments for gastro‐oesophageal reflux in asthma have been conducted to determine whether treatment of reflux improves asthma.

Objectives: The objective of this review was to evaluate the effectiveness of treatments for gastrooesophageal reflux in terms of their benefit on asthma.

Search methods: The Cochrane Airways Group trials register, review articles and reference lists of articles were searched.

Selection criteria: Randomised controlled trials of treatment for oesophageal reflux in adults and children with a diagnosis of both asthma and gastro‐oesophageal reflux.

Data collection and analysis: Trial quality and data extraction were carried out by two independent reviewers. Authors were contacted for confirmation or more data.

Main results: Twelve trials met the inclusion criteria. Interventions included proton pump inhibitors (n=6), histamine antagonists (n=5), surgery (n=1) and conservative management (n=1). Treatment duration ranged from 1 week to 6 months. A temporal association between asthma and gastrooesophageal reflux was investigated in 4 trials and found to be present in a proportion of participants in these trials. Anti‐reflux treatment did not consistently improve lung function, asthma symptoms, nocturnal asthma or the use of asthma medications.

Authors' conclusions: In asthmatic subjects with gastrooesophageal reflux, (but who were not recruited specifically on the basis of reflux‐associated respiratory symptoms), there was no overall improvement in asthma following treatment for gastro‐oesophageal reflux. Subgroups of patients may gain benefit, but it appears difficult to predict responders.

Editorial Group: Cochrane Airways Group.

Publication status: Edited (no change to conclusions).

Citation: Gibson PG, Henry R, Coughlan JJL. Gastro‐oesophageal reflux treatment for asthma in adults and children. Cochrane Database of Systematic Reviews 2003, Issue 1. Art. No.: CD001496. DOI: 10.1002/14651858.CD001496. Link to Cochrane Library. [PubMed: 12804410]

Copyright © 2009 The Cochrane Collaboration. Published by John Wiley & Sons, Ltd.

PMID: 12804410

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