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[Dysphagia] LPR and PPIs
Irene,
Am I recalling correctly that those studies were supportive of other
approaches such as small meals and elevating the HOB for treatment? I also
read recently that diet change was not an effective treatment for GERD.
(Yeah! Still get chocolate.) However, weight loss was still a good strategy
(Darn, there goes the chocolate.)
JoAnn
----- Original Message -----
From: "Irene Campbell-Taylor" <eripley at yahoo.com>
To: <dysphagia at b9.com>
Sent: Monday, January 22, 2007 9:23 AM
Subject: [Dysphagia] LPR and PPIs
Not Much Support for PPIs in Treating Respiratory Symptoms
Several studies challenge the use of PPIs to treat asthma, cough, or
hoarseness.
Gastroesophageal reflux disease (GERD) is thought to cause or exacerbate
respiratory tract symptoms in some patients. Postulated mechanisms include
both direct effects (e.g., aspiration) and indirect neurally mediated
effects of acid reflux on upper and lower airway function. Many clinicians
thus treat asthma, chronic cough, or chronic hoarseness with proton-pump
inhibitors (PPIs), even in patients with minimal or no heartburn or reflux.
However, several studies published in 2006 challenge this practice.
In one randomized trial, 700 adults with stable asthma - nearly all of
whom used inhaled steroids - received either esomeprazole (40 mg twice
daily) or placebo for 16 weeks (Journal Watch Jun 6 2006). Mean morning peak
expiratory flow (PEF) from baseline to end of study (the primary outcome)
increased by 9% in the esomeprazole group and by 7% in the placebo group, a
difference that did not quite achieve significance. Most secondary outcomes
(e.g., use of rescue inhalers, asthma symptoms, and quality of life) also
were not better with esomeprazole than with placebo. Even in subgroups with
symptomatic GERD, small improvements in morning PEF with esomeprazole did
not reach significance.
Two randomized trials examined the effect of PPIs on patients with
laryngeal symptoms and laryngoscopic findings attributed to GERD (Journal
Watch Sep 28 2006). In one trial, 145 such patients received either
esomeprazole (40 mg twice daily) or placebo. After 16 weeks, the proportions
of patients with a good response were virtually identical in the two groups.
In another trial, 39 patients -- all of whom had abnormal 24-hour esophageal
pH monitoring in addition to laryngeal symptoms -- received pantoprazole (40
mg daily) or placebo. Again, clinical responses at 12 weeks were the same in
the pantoprazole and placebo groups.
These studies do not preclude the possibility that occasional patients
with asthma or chronic laryngeal symptoms might benefit from PPI therapy.
However, recent systematic reviews suggest that the evidence is insufficient
to support PPI therapy for asthma, prolonged cough, or hoarseness. For now,
clinicians should temper their enthusiasm for PPI therapy for these
conditions.
- Allan S. Brett, MD
Published in Journal Watch General Medicine December 28, 2006
Dr I Campbell-Taylor
Clinical Neuroscientist
Exclusive Distributor:
www.interactivetherapy.com
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