ReviewNature reviews. Gastroenterology & hepatology2013
Overlap of functional dyspepsia and GERD--diagnostic and treatment implications.
Review in Nature reviews. Gastroenterology & hepatology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03282084 (A Prospective, Observational Study of the PPI Non-responder), which is not on this map. Cited by 32 papers, 3 of them syntheses that pooled 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.
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.
A Prospective, Observational Study of the PPI Non-responder
Who cites it
32 citing papers in PubMed, 3 syntheses or guidelines pooled it, 77 citations in OpenAlex.
- How Effective Is Drinking Natural Mineral Water against Heartburn from Functional Dyspepsia, Gastroesophageal Reflux Disease, or Other Causes? A Systematic Review of Clinical Intervention Studies.Complementary medicine research · 2024Pooled it
- Gastric dysrhythmia in gastroesophageal reflux disease: a systematic review and meta-analysis.Esophagus : official journal of the Japan Esophageal Society · 2021Pooled it
- The Role of GI Peptides in Functional Dyspepsia and Gastroparesis: A Systematic Review.Frontiers in psychiatry · 2020Pooled it
- Effects of Antidepressants on Gastric Function in Patients with Functional Dyspepsia.The American journal of gastroenterology · 2018Trial
- Symptom profile in partial responders to a proton pump inhibitor compared with treatment-naïve patients with gastroesophageal reflux disease: a post hoc analysis of two study populations.BMC gastroenterology · 2014Trial
- Symptom Overlap Stratifies Prokinetic Response in Functional Dyspepsia: A Real-World Multicenter Study of 1297 Chinese Patients.JGH open : an open access journal of gastroenterology and hepatology · 2026Article
- Article
- Overlapping disorders of gut-brain interaction -More may not be so merry!Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2025Article
- Dyspepsia-Is the Stomach Half Empty?Digestive diseases and sciences · 2025Article
- The Clinical Spectrum of Gastroesophageal Reflux Disease: Facts and Fictions.Visceral medicine · 2024Review
- Characteristics and Risk Factors of Functional Dyspepsia Fulfilling the Rome IV Criteria Overlapping With Gastroesophageal Reflux Disease, Irritable Bowel Syndrome, and Functional Constipation in South China.Journal of neurogastroenterology and motility · 2024Article
- Factors Associated with Overlap between Functional Dyspepsia and Nonerosive Reflux Disease in Endoscopy-based Helicobacter pylori-uninfected Japanese Health Checkup Participants: A Prospective, Multicenter Cross-sectional Study.Internal medicine (Tokyo, Japan) · 2024Article
- The associations between functional dyspepsia and potential risk factors: A comprehensive Mendelian randomization study.PloS one · 2024Article
- Association between gut microbiota and common overlapping gastrointestinal disorders: a bidirectional two-sample Mendelian randomization study.Frontiers in microbiology · 2024Article
- Global trends in research related to functional dyspepsia and anxiety or depression over the past two decades: a bibliometric analysis.Frontiers in neuroscience · 2023Article
- Research trends in the field of the gut-brain interaction: Functional dyspepsia in the spotlight - An integrated bibliometric and science mapping approach.Frontiers in neuroscience · 2023Review
- Prevalence and risk factors of upper gastrointestinal symptoms in community pharmacies in Spain: a cross-sectional study.Frontiers in pharmacology · 2023Article
- Association between Gastrointestinal Diseases and Migraine.International journal of environmental research and public health · 2022Article
- Article
- United European Gastroenterology (UEG) and European Society for Neurogastroenterology and Motility (ESNM) consensus on functional dyspepsia.United European gastroenterology journal · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
GERD and functional dyspepsia are the two most prevalent upper gastrointestinal disorders. Gastro-oesophageal reflux is most commonly diagnosed using the cardinal symptoms of heartburn and regurgitation. Patients might also be diagnosed using a questionnaire, after empiric treatment with an acid suppressant, after upper endoscopy or by pH testing. Functional dyspepsia is best diagnosed using symptoms outlined by the Rome committee in conjunction with a normal upper endoscopy. Theoretically, distinguishing these two populations should be easy for all health-care providers. In reality, however, carefully separating out these two populations can be quite difficult, as substantial overlap exists epidemiologically, symptomatically and even diagnostically. This overlap renders precise diagnosis a challenge; given the limited treatment options, the primary goal is to identify those patients who will respond to acid suppressive therapy. Despite the frequency with which functional dyspepsia and GERD overlap, remarkably few studies have investigated this overlap. Most recommendations are based on data derived from separate studies of functional dyspepsia and GERD. A further limitation of existing studies is their failure to differentiate between the various diagnostic categories into which the individual presenting with heartburn might belong.
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Registered trials
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.