https://www.gastrojournal.org/article/S0016-5085(04)01634-8/pdf

American Gastroenterological Association technical review on the diagnosis and treatment of gastroparesis

This literature review and the recommendations herein were prepared for the American Gastroenterological Association Clinical Practice Committee. The paper was approved by the Committee on May 16, 2004, and by the AGA Governing Board on September 23, 2004.

Technical review on the diagnosis and treatment of gastroparesis

Background:

The efficacy of H2-receptor antagonists in functional dyspepsia is equivocal and the therapeutic place of proton pump inhibitors in functional dyspepsia is unknown.



Aim:

To evaluate the efficacy of proton pump inhibitor therapy in functional dyspepsia.



Methods:

Patients (n = 1262) with a clinical diagnosis of functional dyspepsia (persistent or recurrent epigastric pain or discomfort for at least 1 month and a normal upper gastrointestinal endoscopy) were randomized to receive omeprazole 20 mg, 10 mg or identical placebo, for 4 weeks. Symptoms were assessed using validated measures. Helicobacter pylori status was determined pre-entry by a 13C-urea breath test.



Results:

On an intention-to-treat analysis (n=1248), complete symptom relief was observed in 38% on omeprazole 20 mg, compared with 36% on omeprazole 10 mg and 28% on placebo (P = 0.002 and 0.02, respectively). Among those with ulcer-like and reflux-like dyspepsia, complete symptom relief was achieved in 40% and 54% on omeprazole 20 mg, and 35% and 45% on omeprazole 10 mg, respectively, compared with 27% and 23% on placebo (all P < 0.05, except omeprazole 10 mg in ulcer-like dyspepsia, P = 0.08). There was no significant benefit of omeprazole over placebo in dysmotility-like dyspepsia. Symptom relief was similar in H. pylori-positive and negative cases.



Conclusions:

Omeprazole is modestly superior to placebo in functional dyspepsia at standard (20 mg) and low doses (10 mg) but not in patients with dysmotility-like dyspepsia.

https://www.onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2036.1998.00410.x

Efficacy of omeprazole in functional dyspepsia: double-blind, randomized, placebo-controlled trials (the Bond and Opera studies)

1 Thomas C Chalmers Centre for Systematic Reviews, Children’s Hospital of Eastern Ontario Research Institute, Canada 2 Department of Pediatrics, University of Ottawa, Canada 3 Department of Clinical Epidemiology and Biostatistics, McMaster University, Canada 4 Health Information Research Unit, Department of Clinical Epidemiology and Biostatistics, McMaster University, Canada 5 Department of Medicine, University of Ottawa, Canada 6 Division of Public Health and Primary Health Care, Institute of Health Sciences, University of Oxford, UK

Assessing the quality of reports of randomised trials: implications for the conduct of meta-analyses.

功能性消化不良(functional dyspepsia, FD)又称非溃疡性消化不良(non-ulcer dyspepsia, NUD)是指一组目前尚无器质性原因可查,持续性或反复发作性的消化不良综合征,其主要症状为位于上腹中部的疼痛或不适,包括上腹胀满、餐后饱胀、嗳气、早饱、腹痛、厌食、恶心、呕吐等。

Functional dyspepsia

The results of therapeutic trials in functional dyspepsia (FD), a frequently encountered condition, are contradictory. Our aim, then, was to produce a pooled estimate, or meta-analysis, of a series of short-term randomized placebo-controlled clinical trials on the pharmacological treatment of FD with antisecretory and gastrokinetic drugs. We retrieved trials for analysis purposes by consulting computerized data bases and by scanning published reviews, Current Contents, and references cited in the individual studies. We also requested bibliographical updates from the medical departments of the manufacturers of the drugs used in the various trials. Of 74 trials retrieved by these means, 23 proved eligible for meta-analysis on the basis of six selection criteria defined a priori. Results were expressed in terms of "therapeutic success" (TS), which includes "symptom-free patients," patients with "significant improvement in symptoms," "excellent results," and so on. The differences in TS rates between the various drugs and placebo were calculated in each trial as the algebraic difference together with the respective 95% confidence interval (95% C.I.); the pooling of results of all eligible trials was done using Cochran's weighted method. With antisecretory drugs, the mean difference in TS rates versus placebo was +20% (95% C.I.: 14-24%). The therapeutic gain for the respective antisecretory agents was 25% (95% C.I.: 14-36%) in the case of pirenzepine and 18% (95% C.I.: 12-24%) in the case of H2 antagonists. Meta-analysis of trials with gastrokinetic drugs also showed superior efficacy of these agents compared with placebo, with a mean difference in TS rates of +46% (95% C.I.: 40-52%).(ABSTRACT TRUNCATED AT 250 WORDS)

M. Comberlato

Papers

Drug treatment of functional dyspepsia. A meta-analysis of randomized controlled clinical trials.