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Waldum HL, Martinsen TC, Hauso O, Qvigstad G. Oral proton-pump inhibitors and step-down therapy for nonulcer dyspepsia: is this the right approach? Therap Adv Gastroenterol 2010; 3:73-6. [PMID: 21180591 PMCID: PMC3002572 DOI: 10.1177/1756283x09357220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Vakil N, Laine L, Talley NJ, Zakko SF, Tack J, Chey WD, Kralstein J, Earnest DL, Ligozio G, Cohard-Radice M. Tegaserod treatment for dysmotility-like functional dyspepsia: results of two randomized, controlled trials. Am J Gastroenterol 2008; 103:1906-19. [PMID: 18616658 DOI: 10.1111/j.1572-0241.2008.01953.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Therapies for dysmotility-like functional dyspepsia (FD) are limited. We studied tegaserod, a selective serotonin type 4 receptor agonist, in patients with FD. METHODS Two identical multicenter, double-blind, randomized, placebo-controlled trials enrolled women >/=18 yr with recurring mid-upper abdominal discomfort characterized by postprandial fullness, early satiety, and/or bloating. Patients were randomized to tegaserod 6 mg b.i.d. or placebo. Two patient-reported primary variables were assessed: percentage of days with satisfactory symptom relief, and symptom severity using the composite average daily severity score (CADSS). RESULTS In total, 2,667 women were randomized with no differences between trials in terms of recruitment method, Helicobacter pylori status, heartburn, or medication use. Mean percentage of days with satisfactory symptom relief for tegaserod versus placebo in Trial 1: 32.2%versus 26.6% (95% CI of treatment difference 2.82, 9.27; P < 0.01), Trial 2: 31.9%versus 29.4% (95% CI of treatment difference -0.21, 6.53; P= 0.066). Mean CADSS in Trial 1: 3.14 versus 3.35 (95% CI of treatment difference -0.29, -0.10; P < 0.0001), Trial 2: 3.15 versus 3.23 (95% CI of treatment difference -0.18, 0.01; P= 0.094). Meta-analysis showed significant benefit for both end points: increase in days with satisfactory relief 4.6% (95% CI 2.29, 6.96); decrease in CADSS 0.14 (95% CI 0.21, 0.07). Treatment effect was greater in patients with severe baseline symptoms. Diarrhea requiring study discontinuation was more common with tegaserod than placebo (4.1%vs 0.3%). CONCLUSIONS Some improvement in dysmotility-like FD was observed with tegaserod treatment. The clinical implication of this improvement is uncertain.
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Affiliation(s)
- Nimish Vakil
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin and Marquette University College of Health Sciences, Milwaukee, Wisconsin 53233, USA
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van Rensburg C, Berghöfer P, Enns R, Dattani ID, Maritz JF, Gonzalez Carro P, Fischer R, Schwan T. Efficacy and safety of pantoprazole 20 mg once daily treatment in patients with ulcer-like functional dyspepsia. Curr Med Res Opin 2008; 24:2009-18. [PMID: 18534050 DOI: 10.1185/03007990802184545] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To investigate the efficacy of pantoprazole 20 mg once daily (o.d.) in relieving epigastric pain associated with ulcer-like functional dyspepsia. RESEARCH DESIGN AND METHODS In this double-blind, placebo-controlled, multicentre study, patients experiencing ulcer-like functional dyspepsia, with epigastric pain as the predominant symptom, were randomised to receive pantoprazole 20 mg or placebo o.d. for 28 days. Primary endpoint was the complete relief (i.e. absence) from epigastric pain after 28 days' treatment. The odds ratio (OR) for pantoprazole/placebo and its 95% confidence intervals (CIs) were determined. Significant superiority of pantoprazole was concluded if the value 1.0 was above this interval. RESULTS Of 419 patients (intention-to-treat [ITT]) randomised to treatment, 207 received pantoprazole and 212 received placebo. Epigastric pain relief was achieved after 28 days' treatment in 55% of pantoprazole recipients and 45% of placebo recipients (per-protocol [PP]: 58% and 47%, respectively). Pantoprazole demonstrated statistically significant superiority compared with placebo in the ITT (OR: 0.68; 95% CI: 0.46-0.99) and PP populations (OR: 0.64; 95% CI: 0.42-0.98). Pantoprazole was more efficacious than placebo in relieving heartburn and acid regurgitation after 7, 14 and 28 days of treatment. The sum score of gastrointestinal symptoms after 28 days was statistically significantly lower in the pantoprazole than placebo group. Fewer patients receiving concomitant psychotropic medication experienced relief from epigastric pain than those not receiving such medication. Adverse events did not significantly differ between pantoprazole and placebo. CONCLUSIONS Results of this study suggest that pantoprazole 20 mg is more efficacious than placebo, and is a well-tolerated treatment for relieving epigastric pain in patients with ulcer-like functional dyspepsia. Further research is needed to confirm these findings.
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Hashash JG, Abdul-Baki H, Azar C, Elhajj II, El Zahabi L, Chaar HF, Sharara AI. Clinical trial: a randomized controlled cross-over study of flupenthixol + melitracen in functional dyspepsia. Aliment Pharmacol Ther 2008; 27:1148-55. [PMID: 18331614 DOI: 10.1111/j.1365-2036.2008.03677.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Functional dyspepsia is a prevalent condition associated with diminished quality of life (QoL) and high economic burden. AIM To study the efficacy of a combination of flupenthixol and melitracen (F + M) with anxiolytic and antidepressant properties in functional dyspepsia using a randomized controlled cross-over design. METHODS Patients met the Rome III criteria for functional dyspepsia and a validated questionnaire was used to exclude those with anxiety or depression. Moreover, patients had to have failed a trial of acid-suppressive therapy and Helicobacter pylori eradication when positive. End points included subjective global symptom relief and QoL assessed by the Nepean Dyspepsia Index (NDI). RESULTS Twenty-five patients (14 females, 11 males; mean age = 34.3 +/- 9.9 years) were enrolled and 24 completed the 8-week study. There was a significant improvement in subjective global symptom relief with F + M vs. placebo (ITT: 73.9% vs. 26.1%, P = 0.001) and a significant drop in the NDI score vs. placebo (ITT: -9.0 +/- 11.9 vs. -2.4 +/- 8.9, P = 0.03). No difference was noted whether the initial treatment was F + M or placebo. No significant side effects were noted. CONCLUSIONS A combination of F and M is safe and effective in the short-term treatment of functional dyspepsia. F + M is associated with significant improvement in QoL independent of the presence of anxiety or depression.
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Affiliation(s)
- J G Hashash
- Division of Gastroenterology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
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In-practice predictors of response to proton pump inhibitor therapy in primary care patients with dyspepsia in an Asian population. J Clin Gastroenterol 2008; 42:134-8. [PMID: 18209580 DOI: 10.1097/01.mcg.0000225620.02094.c3] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Data on Asian patients who present to primary care physicians with dyspepsia are limited. AIM To determine predictors of response to a trial of proton pump inhibitor therapy. METHOD One hundred ninety patients presenting to their general practitioners with dyspeptic symptoms but without alarm symptoms, underwent endoscopy and were subsequently treated with 20 mg of esomeprazole twice a day for 2 weeks. Possible predictors of response were assessed before treatment. Dyspeptic symptoms were scored at baseline and at the end of treatment. Excellent response and poor response were defined as end of treatment score of <or=1 and failure to achieve >or=50% reduction in symptom scores. RESULTS On bivariate analysis male sex and having <or=2 concurrent dyspeptic symptoms predicted excellent response, whereas bloating as most bothersome symptom, >2 dyspeptic symptoms, anxiety, and irritable bowel syndrome predicted poor response. On multivariate analysis, male sex and <or=2 dyspeptic symptoms, and bloating remained significant predictors of excellent and poor responses, respectively. CONCLUSIONS Predictors of response to proton pump inhibitor trial that could be easily assessed in a primary care clinic were identified. In our population the response was not as favorable as suggested by clinical trials. Frequent overlap with irritable bowel syndrome seems to be an important factor.
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Camilleri M. Functional dyspepsia: mechanisms of symptom generation and appropriate management of patients. Gastroenterol Clin North Am 2007; 36:649-64, xi-x. [PMID: 17950442 DOI: 10.1016/j.gtc.2007.07.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
With the exception of predominant heartburn, the management of upper abdominal symptoms not caused by an organic disorder remains a challenge. Systematic reviews of large trials show that suppressing acid secretion and eradicating Helicobacter pylori, prokinetics, and antidepressants have inconsistent effects on the treatment of functional dyspepsia. This inconsistent therapeutic efficacy has been attributed to the heterogeneity of patients, and the contribution of multiple mechanisms to development of symptoms. To achieve greater therapeutic efficacy, it may be necessary to target the therapeutic approach to a specific pathophysiology, such as impaired gastric emptying.
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Affiliation(s)
- Michael Camilleri
- Clinical Enteric Neuroscience Translational and Epidemiological Research Group, Mayo Clinic College of Medicine, Charlton 8-110, 200 First Street, SW, Rochester, MN 55905, USA.
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Leung WK, Wu JCY, Chan FKL, Fung SSL, Wong VWS, Hui AJ, Hung LCT, Sung JJY. Initial treatment with lansoprazole in young dyspeptic patients with negative urea breath test result: a randomized controlled trial with 12-month follow-up. Am J Gastroenterol 2007; 102:1483-8. [PMID: 17593161 DOI: 10.1111/j.1572-0241.2007.01229.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Although empirical antisecretory drug therapy is recommended to young dyspeptic patients without alarming features, the effectiveness of this approach remains undetermined. We evaluated the long-term effects of an initial 12-wk course of lansoprazole in young dyspeptic patients without Helicobacter pylori (H. pylori) infection. METHODS Patients who were less than 45 yr and presented with at least 3 months of dyspepsia in the absence of alarming features were eligible. They were offered (13)C-urea breath test (UBT) to determine H. pylori status and all symptomatic patients with negative UBT were randomized to receive lansoprazole 30 mg daily or placebo for 12 wk. Those who had previous endoscopy or positive UBT were excluded. Primary end point was the proportion of patients with treatment failure, defined as worsening of global dyspeptic symptom, while on study medication. Patients were followed up for 26 wk for global dyspeptic symptom as determined by 7-point Likert scale. Quality-of-life assessment (SF-36), need of endoscopy, and utilization of other health-care services were monitored for 52 wk. RESULTS A total of 157 dyspeptic patients were randomized. At the end of 12-wk treatment, the proportion of patients with treatment failure was similar in the lansoprazole (33.3%) and placebo (30.3%) groups (P= 0.74). Patients' global assessment of their dyspeptic symptom was comparable at all time points measured. There was also no significant difference in the SF-36 mental and physical summary scales. At the end of 52 wk, there was no difference in the proportion of patients who underwent endoscopy, had additional medical consultations, or used other nonstudy medications between the two groups. CONCLUSION Lansoprazole is not effective in the initial management of young dyspeptic patients without H. pylori infection.
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Affiliation(s)
- Wai K Leung
- Institute of Digestive Disease, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
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Goh K. Evaluation and management of dyspepsia - current perspectives. MALAYSIAN FAMILY PHYSICIAN : THE OFFICIAL JOURNAL OF THE ACADEMY OF FAMILY PHYSICIANS OF MALAYSIA 2007; 2:2-7. [PMID: 25606069 PMCID: PMC4170325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- Kl Goh
- MBBS (Mal), FRCP (Glasg), FRCP (London), MD, FACG, Professor of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Wang WH, Huang JQ, Zheng GF, Xia HHX, Wong WM, Liu XG, Karlberg J, Wong BCY. Effects of proton-pump inhibitors on functional dyspepsia: a meta-analysis of randomized placebo-controlled trials. Clin Gastroenterol Hepatol 2007; 5:178-85; quiz 140. [PMID: 17174612 DOI: 10.1016/j.cgh.2006.09.012] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The aim of this study was to assess systematically the efficacy of proton pump inhibitors (PPIs) in the treatment of functional dyspepsia compared with placebo and to determine if any difference in the response exists between symptom subgroups of functional dyspepsia. METHODS A literature search was performed through September 2005 in PubMed, Medline, Embase, CINAHL, and Cochrane databases to include randomized, double-blind, placebo-controlled trials evaluating the efficacy of PPIs for the treatment of functional dyspepsia. Relative risk (RR) and relative risk reduction (RRR) and 95% confidence intervals (CI) were calculated under a random-effects model. RESULTS Seven studies with a total of 3725 patients were identified. PPIs were found to be more effective than placebo for reducing symptoms in patients with functional dyspepsia (RRR, 10.3%; 95% CI, 2.7%-17.3%). The estimated number needed to treat is 14.6 (95% CI, 8.7-57.1). When stratified analyses were performed, a significant difference in the efficacy was observed only in patients with ulcer-like (RRR, 12.8%; 95% CI, 7.2%-18.1%) and reflux-like dyspepsia (RRR, 19.7%; 95% CI, 1.8%-34.3%), but not in those with dysmotility-like (RRR, 5.1%; 95% CI, -10.9% to 18.7%) and unspecified dyspepsia (RRR, -8.0%; 95% CI, -23.7% to 5.6%). The effect of H pylori on the efficacy of PPIs remains unclear. Significant heterogeneity among studies was found for the overall analysis, dysmotility-like dyspepsia, H pylori-negative subgroup, and different dose subgroups. CONCLUSIONS PPIs are more effective than placebo for the management of patients with ulcer-like and reflux-like functional dyspepsia.
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Affiliation(s)
- Wei Hong Wang
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
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Moayyedi P, Soo S, Deeks J, Delaney B, Innes M, Forman D. Pharmacological interventions for non-ulcer dyspepsia. Cochrane Database Syst Rev 2006:CD001960. [PMID: 17054151 DOI: 10.1002/14651858.cd001960.pub3] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND The commonest cause of upper gastrointestinal symptoms is non-ulcer dyspepsia (NUD) and yet the pathophysiology of this condition has been poorly characterised and the optimum treatment is uncertain. It is estimated that pound450 million is spent on dyspepsia drugs in the UK each year. OBJECTIVES This review aims to determine the effectiveness of six classes of drugs (antacids, histamine H(2) antagonists, proton pump inhibitors, prokinetics, mucosal protecting agents and antimuscarinics) in the improvement of either the individual or global dyspepsia symptom scores and also quality of life scores patients with non-ulcer dyspepsia. SEARCH STRATEGY We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 4, 2005), MEDLINE (1966 to January 2006), EMBASE (1988 to January 2006), CINAHL (1982 to January 2006), SIGLE, and reference lists of articles. We also contacted experts in the field and pharmaceutical companies. Trials were located through electronic searches of the Cochrane Controlled Trials Register (CCTR), MEDLINE, EMBASE, CINAHL and SIGLE, using appropriate subject headings and text words, searching bibliographies of retrieved articles, and through contacts with experts in the fields of dyspepsia and pharmaceutical companies. SELECTION CRITERIA All randomised controlled trials (RCTs) comparing drugs of any of the six groups with each other or with placebo for non-ulcer dyspepsia (NUD). DATA COLLECTION AND ANALYSIS Two review authors independently assessed eligibility, trial quality and extracted data. MAIN RESULTS We included 73 trials: prokinetics (19 trials with dichotomous outcomes evaluating 3178 participants; relative risk reduction (RRR) 33%; 95% confidence intervals (CI) 18% to 45%), H(2)RAs (12 trials evaluating 2,183 participants; RRR 23%; 95% CI 8% to 35%) and PPIs (10 trials evaluating 3,347 participants; RRR 13%; 95% CI 4% to 20%) were significantly more effective than placebo. Bismuth salts (six trials evaluating 311 participants; RRR 40%; 95% CI -3 to 65%) were superior to placebo but this was of marginal statistical significance. Antacids (one trial evaluating 109 participants; RRR -2%; 95% CI -36% to 24%) and sucralfate (two trials evaluating 246 participants; RRR 29%; 95% CI -40% to 64%) were not statistically significantly superior to placebo. A funnel plot suggested that the prokinetic results could be due to publication bias or other small study effects. AUTHORS' CONCLUSIONS There is evidence that anti-secretory therapy may be effective in NUD. The trials evaluating prokinetic therapy are difficult to interpret as the meta-analysis result could have been due to publication bias. The effect of these drugs is likely to be small and many patients will need to take them on a long-term basis so economic analyses would be helpful and ideally the therapies assessed need to be inexpensive and well tolerated.
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Affiliation(s)
- P Moayyedi
- McMaster University, Department of Medicine, Gastroenterology Division, HSC-3N51d, 1200 Main Street West, Hamilton, Ontario, Canada.
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van Zanten SV, Armstrong D, Chiba N, Flook N, White RJ, Chakraborty B, Gasco A. Esomeprazole 40 mg once a day in patients with functional dyspepsia: the randomized, placebo-controlled "ENTER" trial. Am J Gastroenterol 2006; 101:2096-106. [PMID: 16817845 DOI: 10.1111/j.1572-0241.2006.00751.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The etiologies of functional dyspepsia (FD) are unclear, but in some studies, treatment with a proton pump inhibitor has been beneficial. The objective of this study was to evaluate the efficacy of esomeprazole 40 mg once a day compared to placebo in achieving symptom relief in primary care patients with FD. METHODS This was a randomized, placebo-controlled trial in adult FD patients, who had at least moderate severity of symptoms, defined as a score of > or =4 on a 7-point Global Overall Symptom (GOS) scale. Patients were excluded if they had predominant symptoms of heartburn or regurgitation; after a normal baseline endoscopy, patients were randomized to esomeprazole 40 mg once daily or placebo for 8 wk. The primary outcome measure was symptom relief (GOS < or =2) at 8 wk. RESULTS Of the 502 enrolled patients, 224 were randomized. The main reasons for exclusion were abnormal endoscopic findings, especially esophagitis. A significantly greater proportion of patients in the esomeprazole group achieved symptom relief at 4 but not at 8 wk compared to placebo: 4 wk esomeprazole 50.5% versus placebo 32.2%, p= 0.009; 8 wk esomeprazole 55.1% versus placebo 46.1%, p= 0.16. A similar relationship at 4 and 8 wk was seen for symptom resolution (GOS = 1) and improvement (DeltaGOS > or =2). CONCLUSION For the primary outcome measure of symptom relief at 8 wk, there was no statistically significant difference between esomeprazole 40 mg once a day and placebo. However, at 4 wk, esomeprazole was significantly more effective than placebo for symptom relief. The difference in therapeutic gain between 4 and 8 wk was largely due to a higher placebo response rate at 8 wk.
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Hu WHC, Lam SK, Lam CLK, Wong WM, Lam KF, Lai KC, Wong YH, Wong BCY, Chan AOO, Chan CK, Leung GM, Hui WM. Comparison between empirical prokinetics, Helicobacter test-and-treat and empirical endoscopy in primary-care patients presenting with dyspepsia: A one-year study. World J Gastroenterol 2006; 12:5010-6. [PMID: 16937497 PMCID: PMC4087404 DOI: 10.3748/wjg.v12.i31.5010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the optimal strategy to treat dyspeptic patients in primary care.
METHODS: Dyspeptic patients presenting to primary care outpatient clinics were randomly assigned to: (1) empirical endoscopy, (2) H pylori test-and-treat, and (3) empirical prokinetic treatment with cisapride. Early endoscopy was arranged if patients remained symptomatic after 2 wk. Symptom severity, quality-of-life (SF-36) as well as patient preference and satisfaction were assessed. All patients underwent endoscopy by wk 6. Patients were followed up for one year.
RESULTS: Two hundred and thirty four patients were recruited (163 female, mean age 49). 46% were H pylori positive. 26% of H pylori tested and 25% of empirical prokinetic patients showed no improvement at wk 2 follow-up and needed early endoscopy. 15% of patients receiving empirical cisapride responded well to treatment but peptic ulcer was the final diagnosis. Symptom resolution and quality-of-life were similar among the groups. Costs for the three strategies were HK$4343, $1771 and $1750 per patient. 66% of the patients preferred to have early endoscopy.
CONCLUSION: The three strategies are equally effective. Empirical prokinetic treatment was the least expensive but peptic ulcers may be missed with this treatment. The H pylori test-and-treat was the most cost-effective option.
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Affiliation(s)
- Wayne H C Hu
- Department of Medicine, University of Hong Kong, China.
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Suzuki H, Nishizawa T, Hibi T. Therapeutic strategies for functional dyspepsia and the introduction of the Rome III classification. J Gastroenterol 2006; 41:513-23. [PMID: 16868798 DOI: 10.1007/s00535-006-1847-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2006] [Accepted: 05/09/2006] [Indexed: 02/04/2023]
Abstract
Although placebo response rates in clinical trials for functional dyspepsia (FD) are more than 30%, a recent meta-analysis based on randomized controlled trials (RCTs) showed that antisecretory drugs were more or less superior to placebos. On the other hand, large-scale RCTs on the efficacy of treatment with prokinetics on FD are still needed. Indications for antibiotic eradication therapy for Helicobacter pylori-positive FD are still controversial, but there seems to be a small but significant therapeutic gain achieved with H. pylori eradication. Since preprandial and postprandial symptomatic disturbances are very important targets for FD treatment, ghrelin, a novel appetite-promoting gastrointestinal peptide that also promotes gastric motility or basal acid secretion can be expected to be a therapeutic target. In the recently published Rome III classification, FD is redefined for patients with symptoms thought to originate from the gastroduodenal region, specifically epigastric pain or burning, postprandial fullness, or early satiation, and it is divided into the subcategories postprandial distress syndrome and epigastric pain syndrome. These new criteria are of value in clinical practice, for epidemiological, pathophysiological, and clinical research, and for the development of new therapeutic strategies.
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Affiliation(s)
- Hidekazu Suzuki
- Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Tokyo, 160-8582, Japan
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Ducrotté P. [Management of functional dyspepsia]. GASTROENTEROLOGIE CLINIQUE ET BIOLOGIQUE 2006; 30:408-14. [PMID: 16633306 DOI: 10.1016/s0399-8320(06)73195-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Affiliation(s)
- Philippe Ducrotté
- Hépato-Gastroentérologie et Nutrition, ADEN EA 3234/IFRMP 23, Hôpital Charles Nicolle, Rouen
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Talley NJ, Vakil NB, Moayyedi P. American gastroenterological association technical review on the evaluation of dyspepsia. Gastroenterology 2005; 129:1756-80. [PMID: 16285971 DOI: 10.1053/j.gastro.2005.09.020] [Citation(s) in RCA: 252] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Nicholas J Talley
- Division of Gastroenterology and Hepatology and Internal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota
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Abstract
Dyspepsia is a chronic or recurrent pain or discomfort centered in the upper abdomen; patients with predominant or frequent (more than once a week) heartburn or acid regurgitation, should be considered to have gastroesophageal reflux disease (GERD) until proven otherwise. Dyspeptic patients over 55 yr of age, or those with alarm features should undergo prompt esophagogastroduodenoscopy (EGD). In all other patients, there are two approximately equivalent options: (i) test and treat for Helicobacter pylori (H. pylori) using a validated noninvasive test and a trial of acid suppression if eradication is successful but symptoms do not resolve or (ii) an empiric trial of acid suppression with a proton pump inhibitor (PPI) for 4-8 wk. The test-and-treat option is preferable in populations with a moderate to high prevalence of H. pylori infection (> or =10%); empirical PPI is an initial option in low prevalence situations. If initial acid suppression fails after 2-4 wk, it is reasonable to consider changing drug class or dosing. If the patient fails to respond or relapses rapidly on stopping antisecretory therapy, then the test-and-treat strategy is best applied before consideration of referral for EGD. Prokinetics are not currently recommended as first-line therapy for uninvestigated dyspepsia. EGD is not mandatory in those who remain symptomatic as the yield is low; the decision to endoscope or not must be based on clinical judgement. In patients who do respond to initial therapy, stop treatment after 4-8 wk; if symptoms recur, another course of the same treatment is justified. The management of functional dyspepsia is challenging when initial antisecretory therapy and H. pylori eradication fails. There are very limited data to support the use of low-dose tricyclic antidepressants or psychological treatments in functional dyspepsia.
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Affiliation(s)
- Nicholas J Talley
- Division of Gastroenterology and Hepatology, Mayo Clinic, Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Mayo Clinic, Rochester, Minnesota 55905, USA
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Abstract
Functional dyspepsia is far more common than dyspepsia due to organic disease, both in the community and general practice. Proposed aetiopathogenic factors include gastric acid, Helicobacter pylori infection, delayed emptying, hypersensitivity or impaired accommodation of the stomach, dysfunction of the duodenum or brain-gut axis, psychosocial morbidity and post-infective mucosal damage. More effective therapy will depend on the development of drugs targeted at these putative pathophysiological mechanisms. On current evidence tricyclic antidepressants appear to be more effective than either acid suppressants or H. pylori eradication.
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Li XB, Liu WZ, Ge ZZ, Zhang DR, Zhao YJ, Dai J, Xue HB, Xiao SD. Analysis of clinical characteristics of dyspeptic symptoms in Shanghai patients. ACTA ACUST UNITED AC 2005; 6:62-7. [PMID: 15904423 DOI: 10.1111/j.1443-9573.2005.00200.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To improve the management of dyspepsia by analyzing the clinical characteristics of dyspeptic symptoms in patients from Shanghai. METHODS 782 patients with functional dyspepsia (FD) or organic dyspepsia (OD) completed a questionnaire about dyspepsia. The questionnaire asked participants to score 12 previously validated common upper abdominal symptoms. The clinical characteristics of dyspepsia including severe symptoms; and the relationship between symptoms and meals were then analyzed. RESULTS Among the 782 dyspeptic patients, 543 cases (69.4%) were classed as FD and 239 (30.6%) OD. The proportion of males was significantly higher in the OD group. There was no difference in average dyspepsia scores between the 2 dyspeptic groups (21.5 vs 20.4, P > 0.05), but the scores of 'stomach' pain and 'stomach' pain before meals were higher in OD patients than in FD patients (2.65 +/- 1.11 vs 2.16 +/- 0.92, 2.26 +/- 1.26 vs 1.79 +/- 0.92, P < 0.05). In 45.2% of the OD patients and 47.7% of the FD patients, respectively, the severity of symptoms was not related to meals. In subgroups of ulcer-like, dysmotility-like and unspecified dyspepsia, the proportion of patients with symptoms not related to meals was 59.6%, 50.9% and 35.2%, respectively. 2.5% (6/239) of OD patients presented with progressive dysphagia, compared with 2.8% (15/543) of FD patients who presented with intermittent dysphagia. Approximately 8.8% (21/239) of OD patients reported dramatic weight loss accompanied with other severe symptoms, compared with 5.9% (32/543) of FD patients who had no other severe symptoms. A shift in symptom subtypes during the follow-up period was found in 13.8% of FD patients. The infection rate of Helicobacter pylori was higher in the OD group than in the FD group (53.1%vs 42.2%, P < 0.01), but no difference was found among the three subgroups of FD patients (P > 0.05). Halitosis was more often found in dyspeptic patients with H. pylori infection (44.9%vs 17.0% in OD, 47.3%vs 25.4% in FD, P < 0.01). CONCLUSIONS When dyspepsia patients present with 'stomach' pain or 'stomach' pain before meals, a diagnosis of OD should be considered. Intermittent dysphagia, weight loss not accompanied with other severe symptoms, and halitosis (more often seen in patients with H. pylori infection) might be regarded as the relatively unique symptoms of dyspepsia in some FD patients. In FD, we found that the severity of dyspepsia symptoms was not related to meals in half of the patients, and symptom subtypes might shift over time, this adds difficulty to the management of FD.
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Affiliation(s)
- Xiao Bo Li
- Department of Gastroenterology, Shanghai Institute of Digestive Diseases, Renji Hospital, Shanghai Second Medical University, Shanghai, China
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69
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Stanghellini V, Poluzzi E, De Ponti F, De Giorgio R, Barbara G, Corinaldesi R. Idiopathic dyspepsia. ACTA ACUST UNITED AC 2005; 8:175-183. [PMID: 15769439 DOI: 10.1007/s11938-005-0010-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Idiopathic dyspepsia refers to pain and/or discomfort perceived in the epigastrium that is not secondary to organic, systemic, or metabolic diseases. Symptoms may overlap with those of gastroesophageal reflux disease and irritable bowel syndrome. Gastrointestinal motor disorders, hypersensitivity to mechanical or chemical stimuli, and psychosocial factors can act individually or in concert to induce the symptoms of dyspepsia. Accordingly, there is no single therapy, and treatment must be individualized. Eradication of Helicobacter pylori infection rarely achieves symptom improvement. Treatment of idiopathic dyspepsia should begin by reassuring the patient about the benign nature of the syndrome and educating them on the knowledge that has been achieved in recent years regarding potential causes of the syndrome. Both prokinetic and antisecretory drugs have been reported to improve dyspeptic symptoms, but results are not completely convincing. Although well-designed studies demonstrate superiority of proton pump inhibitors over placebo, it should be noted that patients with nonerosive gastroesophageal reflux disease were invariably included; when these patients are excluded, the benefit of antisecretory medications is questionable. We suggest that patients with idiopathic dyspepsia be initially treated according to the predominant symptom. Those with epigastric pain/burning should receive a trial with standard doses of proton pump inhibitors for 4 to 8 weeks, whereas prokinetic patients should be prescribed at recommended doses for similar periods of time to patients with nonpainful dyspeptic symptoms such as posprandial fullness, early satiety, nausea, or vomiting. Nonresponders may benefit from combination therapies or short trials with higher doses of drugs. Visceral analgesics and antidepressants can also be prescribed alone or in combinations with other therapeutic strategies. Recent studies demonstrate utility for psychologic therapy and hypnotherapy, although truly controlled studies are difficult in this area. Herbal medicines deserve further evaluation.
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Affiliation(s)
- Vincenzo Stanghellini
- Department of Internal Medicine and Gastroenterology, University of Bologna, Policlinico S. Orsola-Malpighi Via Massarenti 9, Bologna, I-40138, Italy.
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Moayyedi P, Delaney BC, Vakil N, Forman D, Talley NJ. The efficacy of proton pump inhibitors in nonulcer dyspepsia: a systematic review and economic analysis. Gastroenterology 2004; 127:1329-37. [PMID: 15521002 DOI: 10.1053/j.gastro.2004.08.026] [Citation(s) in RCA: 174] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS The evidence that proton pump inhibitor (PPI) therapy affects symptoms of nonulcer dyspepsia is conflicting. We conducted a systematic review to evaluate whether PPI therapy had any effect in nonulcer dyspepsia and constructed a health economic model to assess the cost-effectiveness of this approach. METHODS Electronic searches were performed using the Cochrane Controlled Trials Register, MEDLINE, EMBASE, CINAHL, and SIGLE until September 2002. Dyspepsia outcomes were dichotomized into cured/improved versus same/worse. Results were incorporated into a Markov model comparing health service costs and benefits of PPI with antacid therapy over 1 year. RESULTS Eight trials were identified that compared PPI therapy with placebo in 3293 patients. The relative risk of remaining dyspeptic with PPI therapy versus placebo was .86 (95% confidence interval, .78-.95; P = .003, random-effects model) with a number needed to treat of 9 (95% confidence interval, 5-25). There was statistically significant heterogeneity between trials (heterogeneity chi(2) = 30.05; df = 7; P < .001). The PPI strategy would cost an extra US dollar 278/month free from dyspepsia if the drug cost US dollar 90/month. If a generic price of US dollar 19.99 is used, then a PPI strategy costs an extra US dollar 57/month free from dyspepsia. A third-party payer would be 95% certain that PPI therapy would be cost-effective, provided they were willing to pay US dollar 94/month free from dyspepsia. CONCLUSIONS PPI therapy may be a cost-effective therapy in nonulcer dyspepsia, provided generic prices are used.
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Affiliation(s)
- Paul Moayyedi
- Gastroenterology Division, McMaster University, Hamilton, Ontario, Canada.
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71
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Moayyedi P, Soo S, Deeks J, Delaney B, Innes M, Forman D. Pharmacological interventions for non-ulcer dyspepsia. Cochrane Database Syst Rev 2004:CD001960. [PMID: 15495023 DOI: 10.1002/14651858.cd001960.pub2] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND The commonest cause of upper gastrointestinal symptoms is non-ulcer dyspepsia (NUD) and yet the pathophysiology of this condition has been poorly characterised and the optimum treatment is uncertain. It is estimated that 450 million pounds is spent on dyspepsia drugs in the UK each year. OBJECTIVES This review aims to determine the effectiveness of six classes of drugs (antacids, histamine H2 antagonists, proton pump inhibitors, prokinetics, mucosal protecting agents and antimuscarinics) in the improvement of either the individual or global dyspepsia symptom scores and also quality of life scores patients with non-ulcer dyspepsia. SEARCH STRATEGY Trials were located through electronic searches of the Cochrane Controlled Trials Register (CCTR), MEDLINE, EMBASE, CINAHL and SIGLE, using appropriate subject headings and text words, searching bibliographies of retrieved articles, and through contacts with experts in the fields of dyspepsia and pharmaceutical companies. SELECTION CRITERIA All randomised controlled trials (RCTs) comparing drugs of any of the six groups with each other or with placebo for non-ulcer dyspepsia (NUD). DATA COLLECTION AND ANALYSIS Data were collected on dyspeptic symptom scores either individual or global symptom assessments and also quality of life scores and adverse effects. MAIN RESULTS A total of 11796 citations were obtained. 157 trials were retrieved and 98 trials fulfilled our eligibility criteria. However, subsequent data extraction was not possible in 31 trials. The final 67 trials were included in the meta-analysis. Prokinetics (14 trials with dichotomous outcomes generating 1053 patients; relative risk reduction [RRR] = 48%; 95% confidence intervals [CI] = 27% to 63%), H2RAs (11 trials generating 2,164 patients; RRR = 22%; 95% CI = 7% to 35%) and PPIs (8 trials generating 3,293 patients; RRR = 14%; 95% CI = 5% to 22%) were significantly more effective than placebo. Bismuth salts (6 trials generating 311 patients; RRR = 40%; 95% CI = -3 to 65%) were superior to placebo but this was of marginal statistical significance. Antacids (one trial generating 109 patients; RRR = -2%; 95% CI = -36% to 24%) and sucralfate (two trials generating 246 patients; RRR = 29%; 95% CI = -40% to 64%) were not statistically significantly superior to placebo. A funnel plot suggested that the prokinetic and H2RA results could be due to publication bias. REVIEWERS' CONCLUSIONS There is evidence that anti-secretory therapy may be effective in NUD. The trials evaluating prokinetic therapy are difficult to interpret as the meta-analysis result could have been due to publication bias. The effect of these drugs is likely to be small and many patients will need to take them on a long-term basis so economic analyses would be helpful and ideally the therapies assessed need to be inexpensive and well tolerated.
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Affiliation(s)
- P Moayyedi
- Department of Medicine, Gastroenterology Division, McMaster University, 1200 Main Street West, Hamilton, Ontario, Canada, L8N 3Z5
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Madsen LG, Wallin L, Bytzer P. Identifying response to acid suppressive therapy in functional dyspepsia using a random starting day trial--is gastro-oesophageal reflux important? Aliment Pharmacol Ther 2004; 20:423-30. [PMID: 15298636 DOI: 10.1111/j.1365-2036.2004.02084.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Single subject trials offer an alternative approach to identify and characterize responders to a specific treatment. AIM To test a new single subject trials design, called random starting day trial, to identify acid-related symptoms in dyspepsia. METHODS A total of 119 patients with functional dyspepsia entered a 12-day, double-blind random starting day trial. All patients started on placebo and switched to omeprazole 80 mg/day at a randomized and blinded day between day 5 and day 9, with active treatment continuing for the rest of the trial. Based on changes of a daily symptom score, response was defined as a sustained > or =50% reduction of symptoms within 3 days of active treatment. RESULTS Thirteen of 119 patients (11%) were classified as spontaneous responders because of complete symptom relief before switching to omeprazole. Of the remaining 106 patients, 15 (15.6%) were classified as responders. Five of six (83%) responders compared with 28 of 53 (53%) non-responders had pathological reflux. Multivariate testing identified symptoms suggestive of gastro-oesophageal reflux predictive of response. CONCLUSIONS The random starting day trial design could identify a subset of dyspeptic patients with a uniform symptomatic response to acid-suppressive therapy. Response seems to be associated with gastro-oesophageal reflux. The random starting day trial needs to be further validated to be considered as a reliable instrument in clinical research.
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Affiliation(s)
- L G Madsen
- Department of Medical Gastroenterology, Glostrup University Hospital, Glostrup, Denmark
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73
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Abstract
Our aim was to review systematically the diagnostic accuracy of the Helicobacter pylori stool antigen test. Bibliographical searches were performed in several electronic databases and abstracts from congresses up to May 2003. Eighty-nine studies (10,858 patients) evaluated the stool antigen test in untreated patients. Mean sensitivity, specificity, positive predictive value and negative predictive value were 91%, 93%, 92% and 87%, respectively. Analysis of the eight studies (1399 patients) in which pretreatment evaluation of the monoclonal stool antigen test was performed showed better (p < .001) results (96%, 97%, 96% and 97%, respectively), with a clearer distinction between positive and negative results. Thirty-nine studies (3147 patients) evaluated the stool antigen test for the confirmation of H. pylori eradication 4-8 weeks after therapy, with accuracies of 86%, 92%, 76% and 93% for mean sensitivity, specificity, positive predictive value and negative predictive value, respectively. Results were similar when a gold standard based on at least two methods was used. Relatively low accuracy was reported in some posttreatment studies with the polyclonal stool antigen test. However, excellent results (p < .001) were achieved in all the six studies evaluating the monoclonal stool antigen test 4-8 weeks posttreatment. Results evaluating the stool antigen test < 4 weeks posttreatment are contradictory. Proton-pump inhibitors seem to affect the accuracy of the stool antigen test. Sensitivity and/or specificity in patients with gastrointestinal bleeding may be suboptimal. The stool antigen test performs well in children. Finally, the stool antigen test seems to be a cost-effective method.
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Affiliation(s)
- Javier P Gisbert
- Department of Gastroenterology, University Hospital of La Princesa, Madrid, Spain.
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74
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Cremonini F, Delgado-Aros S, Talley NJ. Functional dyspepsia: drugs for new (and old) therapeutic targets. Best Pract Res Clin Gastroenterol 2004; 18:717-33. [PMID: 15324710 DOI: 10.1016/j.bpg.2004.04.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The therapeutic management of functional dyspepsia remains a major challenge for the gastroenterologist. Current therapies available are based on putative underlying pathophysiologic mechanisms, including gastric acid sensitivity, slow gastric emptying and Helicobacter pylori infection, but only a small proportion of patients achieve symptomatic benefit from these therapeutic approaches. Relatively novel mechanistic concepts under testing include impaired gastric accomodation, visceral hypersensitivity, and central nervous system dysfunction. Serotonergic modulators (e.g. the 5-HT4 agonist tegaserod, the 5-HT3 antagonist alosetron and the 5-HT1P agonist sumatriptan), CCK-1 antagonists (e.g. dexloxiglumide), opioid agonists (e.g. asimadoline), N-methyl-D-aspartate (NMDA) receptor antagonists (e.g dextromethorphan), neurokinin antagonists (e.g. talnetant), capsaicin-like agents and antidepressants are among the agents currently under investigation. It seems unlikely, however, that targeting a single mechanism with an individual drug will result in complete symptom remission in most cases.
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Affiliation(s)
- Filippo Cremonini
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Mayo Clinic College of Medicine, Charlton 8-138, 200 First Street SW, Rochester MN 55905, USA
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75
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Quigley EMM. Functional dyspepsia (FD) and non-erosive reflux disease (NERD): overlapping or discrete entities? Best Pract Res Clin Gastroenterol 2004; 18:695-706. [PMID: 15324708 DOI: 10.1016/j.bpg.2004.04.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
As the incidence of both gastric cancer and peptic ulcer disease have declined, that of gastro-oesophageal reflux disease (GORD) and non-ulcer, or functional dyspepsia (FD) have reached virtually epidemic proportions. As we come to appreciate the expression of these disorders in the community, the real spectrum of each disease has become evident. FD and non-erosive reflux disease (NERD), the most prevalent manifestation of GORD, frequently overlap. Where then does GORD end and FD begin? Is it realistic, or even clinically relevant, to attempt a clear separation between these entities? These are more than issues of mere semantics; therapeutic options may be dictated by the classification of the patient as one or the other. Recent work indicates clearly that NERD is a heterogeneous disorder incorporating some patients who may well harbour subtle manifestations of oesophagitis and others who have entirely normal 24-hour pH studies. These differences may be crucial to the concept of NERD/FD overlap. While evidence in support of this concept is far from complete, it would appear that this overlap is most relevant to those NERD patients who do not exhibit abnormal esophageal acid exposure. These patients truly belong in the spectrum of functional gastrointestinal disorders rather than in GORD; attempts to shoe-horn these individuals into the spectrum of GORD will result in therapeutic disappointment and surgical disaster.
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Affiliation(s)
- Eamonn M M Quigley
- Department of Medicine, Cork University Hospital, Clinical Sciences Building, Cork, Ireland.
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Peura DA, Kovacs TOG, Metz DC, Siepman N, Pilmer BL, Talley NJ. Lansoprazole in the treatment of functional dyspepsia: two double-blind, randomized, placebo-controlled trials. Am J Med 2004; 116:740-8. [PMID: 15144910 DOI: 10.1016/j.amjmed.2004.01.008] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2002] [Revised: 01/15/2004] [Accepted: 01/15/2004] [Indexed: 02/07/2023]
Abstract
PURPOSE The efficacy of proton pump inhibitor therapy for symptom resolution in patients with functional dyspepsia remains controversial. This study was designed to compare the efficacy of lansoprazole with placebo in relieving upper abdominal discomfort in patients with functional dyspepsia. METHODS We enrolled 921 patients with functional dyspepsia (defined as persistent or recurrent upper abdominal discomfort during the prior 3 months) and moderate upper abdominal discomfort on at least 30% of screening days; none of the patients had predominant symptoms suggestive of gastroesophageal reflux or endoscopic evidence of erosive or ulcerative esophagitis, or gastric or duodenal ulcer or erosion. Patients were assigned randomly to receive lansoprazole 15 mg (n = 305), lansoprazole 30 mg (n = 308), or placebo (n = 308) daily for 8 weeks. Patients recorded the frequency and severity of symptoms in daily diaries. RESULTS At week 8, significantly (P <0.001) greater mean reductions in the percentage of days with upper abdominal discomfort were reported in patients treated with lansoprazole 15 mg (35%) or 30 mg (34%) compared with those treated with placebo (19%). Similarly, more patients treated with lansoprazole 15 mg (44%) or 30 mg (44%) reported complete symptom resolution (defined as no episodes of upper abdominal discomfort in the 3 days before the study visit) at 8 weeks than did placebo-treated patients (29%, P <0.001). Improvement of upper abdominal discomfort, however, was seen only in patients who had at least some symptoms of heartburn at enrollment. CONCLUSION Lansoprazole, at a daily dose of 15 mg or 30 mg, is significantly better than placebo in reducing symptoms of persistent or recurrent upper abdominal discomfort accompanied by at least some symptoms of heartburn.
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Affiliation(s)
- David A Peura
- University of Virginia, Charlottesville, Virginia, USA.
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77
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Abstract
This pragmatic, primary care study by Meineche-Schmidt in patients with presumed acid-related uninvestigated dyspepsia showed that a standard dose of omeprazole 20 mg daily was significantly more effective than a placebo in treating their self-worded main dyspepsia complaint. As a higher dose of omeprazole 40 mg daily was not more effective, the standard dose should be used. In this study, 9% of the patients had sole reflux-like symptoms while the rest had other accompanying symptoms and would be considered to have dyspepsia. In fact, patients had on average more than five symptoms. Patients do not know that there is a controversy about whether to call their symptoms GERD or dyspepsia; they just know that they want to feel better. As no initial investigations were made, patients could have a variety of possible diagnoses such as gastroesophageal reflux disease, ulcer disease, or functional dyspepsia. The recent CADET-PE study showed that if patients had endoscopic abnormalities, these were findings such as esophagitis that would be appropriately treated with acid suppression. That study also reconfirmed that symptoms do not predict endoscopic findings and do not make a diagnosis. Thus, the approach suggested in this study to treat patients based on their main symptom complaint is practical and effective.
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78
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Vakil N. Functional dyspepsia: the devil in the details. Am J Med 2004; 116:781-2. [PMID: 15144918 DOI: 10.1016/j.amjmed.2004.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Timmons S, Liston R, Moriarty KJ. Functional dyspepsia: motor abnormalities, sensory dysfunction, and therapeutic options. Am J Gastroenterol 2004; 99:739-49. [PMID: 15089910 DOI: 10.1111/j.1572-0241.2004.04086.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Functional dyspepsia is a common condition, but as yet, the underlying etiology is unclear. In this article, upper gastrointestinal motor and sensory physiology are reviewed and the current evidence for motor and/or sensory functional abnormalities causing dyspeptic symptoms is presented. The complex interrelationship between abnormal motor activity and sensation is explored, as well as the potential roles for autonomic dysfunction and psychological state in modulating gastrointestinal sensation and motor function. Finally, based on clinical trial evidence, a treatment pathway for functional dyspepsia is suggested.
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Affiliation(s)
- Suzanne Timmons
- South Munster Specialist Registrar Training Scheme, Tralee General Hospital, Co. Kerry, Ireland
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80
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Fock KM, Talley N, Hunt R, Fass R, Nandurkar S, Lam SK, Goh KL, Sollano J. Report of the Asia-Pacific consensus on the management of gastroesophageal reflux disease. J Gastroenterol Hepatol 2004; 19:357-67. [PMID: 15012771 DOI: 10.1111/j.1440-1746.2004.03419.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This report summarizes the conclusions and recommendations of a panel of gastroenterologists practising in the Asia-Pacific region. The group recognized that although gastroesophageal reflux disease (GERD) is less common and milder in endoscopic severity in Asia than in the West, there is nevertheless data to suggest an increasing frequency of the disease. During a 2-day workshop, the evidence for key issues in the diagnosis and clinical strategies for the management of the disease was evaluated, following which the recommendations were made and debated. The consensus report was presented at the Asia-Pacific Digestive Week 2003 in Singapore for ratification. Upper gastrointestinal (GI) endoscopy is the gold standard for the diagnosis of erosive GERD. There is no gold standard for the diagnosis of non-erosive GERD (NERD). Diagnosis therefore relies on symptoms, a positive 24-h pH study or a response to a course of proton pump inhibitor (PPI) treatment. The goals of treatment for GERD are to heal esophagitis, relieve symptoms, maintain the patient free of symptoms, improve quality of life and prevent complications. The PPI are the most effective medical treatment. Following initial treatment, on-demand therapy may be effective in some patients with NERD or mild (GI) erosive esophagitis. Anti-reflux surgery by a competent surgeon could achieve a similar outcome, although there is an operative mortality of 0.1-0.8%. The decision is dependent on the patient's preference and the availability of surgical expertise. Currently, endoscopic treatment should be performed only in the context of a clinical trial. Treatment of patients with typical GERD symptoms without alarm features in primary care could begin with PPI for 2 weeks followed by a further 4 weeks before going to on-demand therapy.
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Abraham NS, Moayyedi P, Daniels B, Veldhuyzen Van Zanten SJO. Systematic review: the methodological quality of trials affects estimates of treatment efficacy in functional (non-ulcer) dyspepsia. Aliment Pharmacol Ther 2004; 19:631-41. [PMID: 15023165 DOI: 10.1111/j.1365-2036.2004.01878.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
AIM To evaluate treatment efficacy using objective quality criteria. METHODS A systematic review was performed of randomized controlled trials of endoscopically investigated dyspepsia (1979-2003) using the Jadad score and Rome II guidelines. The Jadad score differentiated studies as 'high quality' (score 4-5/5) vs. 'poor quality' (score 1-3/5). Three key Rome II guidelines on study design (cut-off of 0/3 or > 0/3) were also compared with the Jadad score. RESULTS Poor quality trials suggested a benefit of prokinetic therapy [relative risk (RR) of remaining dyspeptic, 0.47; 95% confidence interval (CI), 0.39-0.56), which was not confirmed in high quality trials (RR, 1.0; 95% CI, 0.84-1.19). There was a marked benefit of H2-receptor antagonist therapy in poor quality trials (RR, 0.68; 95% CI, 0.61-0.76), but a marginal benefit in good quality trials (RR, 0.87; 95% CI, 0.79-0.97). Trial quality did not affect the small statistically significant benefit seen with Helicobacter pylori eradication. Two high quality trials suggested a limited benefit with the use of proton pump inhibitors, with no poor quality trials to provide a comparison. Separation of the studies by the Rome II criteria had a similar impact on the calculated treatment estimates. CONCLUSIONS The magnitude of benefit of prokinetic and H2-receptor antagonist therapies reported in previous meta-analyses has been over-estimated. The quality of trials has an impact on the efficacy estimates of treatment. The Rome II criteria for study methodology may be appropriate for judging study quality.
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Affiliation(s)
- N S Abraham
- Sections of Health Services Research and Gastroenterology, Houston Veterans Affairs Medical Center and Baylor College of Medicine, Houston, TX, USA.
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Tang HW, Huang YX, Xu HF, Gao W, Zhou RS, Shang L, Wang QL, Gao F, An XL. Relationships among symptom sub-groups, gastric emptying and blood gut hormones in patients with functional dyspepsia. Shijie Huaren Xiaohua Zazhi 2003; 11:1715-1719. [DOI: 10.11569/wcjd.v11.i11.1715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To study the relationships among symptom subgroups, gastric emptying and gastrointestinal hormones in patients with functional dyspepsia (FD) and to explore pathogenesis of FD.
METHODS The patients with FD were divided into 3 subgroups according to the RomeIIcriteria and 10 cases were selected randomly from each subgroup. Ten healthy subjects served as control. Thus 4 subgroups were set up, including the ulcer-like dyspepsia group (10 cases), the dysmotility-like dyspepsia group (10 cases), the unspecified dyspepsia group (10 cases) and the control group (10 healthy subjects). Changes of radionuclide gastric emptying and blood levels of relevant gastrointestinal hormones were observed synchronously. After gastric emptying was measured, the 30 cases of FD were divided into 2 groups: the normal gastric emptying group and the delayed gastric emptying group. Gastric emptying was recorded by 99mTc-labelled solid food. Changes in motilin(MTL), somatostatin(SS), substance P(SP)and nitric oxide(NO)contents in peripheral blood were determined by radioimmunoassay and nitrate reductase technique.
RESULTS In the ulcer-like group, 40% patients had gastric emptying delay while the half gastric emptying time (GET1/2) and gastric emptying rate (GE%)at every time-point did not show significant changes(P<0.05)compared with control group and the other two subgroups of FD. The levels of SS in peripheral blood were increased significantly (P<0.05). However, the levels of MTL, SP, NO did not show significant changes (P<0.05) compared with control group. In the dysmotility-like group, 70% patients had gastric emptying delay, meanwhile, GET1/2 was prolonged significantly (P<0.05), and GE% was decreased significantly (15 min, P>0.05; 30 min, P>0.05; 45 min, P<0.05; 60 min, P<0.05; 90 min, P<0.01; and 120 min, P<0.01, respectively). Levels of SS in peripheral blood were increased significantly (P<0.05), whereas levels of MTL, SP, NO did not show significant changes (P>0.05). In the unspecified group, 70% of patients had gastric emptying delay, meanwhile, GET1/2 was prolonged significantly (P<0.05), and GE% was decreased significantly (15 min P>0.05; 30 min, P>0.05; 45 min, P<0.05; 60 min, P<0.05; 90 min, P<0.01; and 120 min, P<0.01, respectively). Levels of SS in peripheral blood were increased significantly (P<0.05), whereas levels of MTL, SP, NO did not show significant changes (P>0.05). In the normal gastric emptying group of FD, levels of SS in peripheral blood were increased significantly (P<0.05), whereas levels of MTL, SP, NO did not show significant changes (P>0.05). In the delayed gastric emptying group of FD, levels of SS and NO in peripheral blood were increased significantly (P<0.05), whereas levels of MTL were decreased significantly (P<0.05), meanwhile, levels of SP did not show significant changes (P>0.05).
CONCLUSION Gastric motility disturbance plays an important role in pathogenesis of dysmotility-like dyspepsia and unspecified dyspepsia. Three subgroups of FD have different mechanisms and the Rome II criteria have practical importance in diagnosis and therapy of FD. Therefore, gastric emptying test has significance in evaluation of gastric motility function and in the treatment of FD. The increase of NO and the decrease of MTL are related to gastric emptying delay. The roles of SS and SP need to be studied further.
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Affiliation(s)
- Hong-Wei Tang
- Department of Gastroenterology, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China,Department of Gastroenterology, General Hospital of Chinese People's Armed Police Forces, Beijing 100039, China
| | - Yu-Xin Huang
- Department of Gastroenterology, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China
| | - Hai-Feng Xu
- Department of Nuclear Medicine, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China
| | - Wei Gao
- Department of Gastroenterology, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China
| | - Run-Suo Zhou
- Department of Nuclear Medicine, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China
| | - Lei Shang
- Department of Health Statistics, Faculty of Preventive Medicine, Fourth Military Medical University, Xi'an 710033, Shaanxi Province, China
| | - Qing-Li Wang
- Department of Gastroenterology, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China
| | - Feng Gao
- Department of Nuclear Medicine, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China
| | - Xiao-Li An
- Department of Nuclear Medicine, Tangdu Hospital, Xi'an 710038, Shaanxi Province, China
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Abstract
PURPOSE OF REVIEW The period under review has seen little evolution in our understanding of the empiric management of dyspepsia. The role of Helicobacter pylori in this setting remains controversial, and a policy of risk stratification with the prudent use of test and treat and symptomatic therapy, with endoscopy for nonresponsive cases, seems to have some support from the literature in this period. RECENT FINDINGS The management of nonsteroidal antiinflammatory drug-associated and aspirin-associated complications has received a lot of attention in the period under review. The COX-2 selective agents have maintained their reputation as safer (but not "safe") options, although some of the original work with one of these agents has been rigorously interrogated and found wanting. Studies in the review period have focused our attention on the less than satisfactory protection of proton pump inhibitor cotherapy, the site-specific nature of ulcer recurrences (which may have therapeutic implications), lower gastroenterology complications associated with NSAID use, and the beneficial effect of proton pump inhibitor cotherapy for patients receiving low-dose aspirin. One should also expect a lot more information in the future with regard to the use of the nitric oxide donating class of nonsteroidal antiinflammatory drugs and aspirin. SUMMARY Findings are presented that suggest that the H.pylori stool antigen test is not as reliable as the urea breath test, while the most promising "new therapy" for H. pylori is not new, but rather an amalgam of some older drugs combined in a new "quadruple" therapy strategy, which shows some promise.
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Affiliation(s)
- Japie A Louw
- Gastroenterology Division and Department of Medicine, Queen's University, Kingston, Ontario, Canada.
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84
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Bolling-Sternevald E, Lauritsen K, Talley NJ, Junghard O, Glise H. Is it possible to predict treatment response to a proton pump inhibitor in functional dyspepsia? Aliment Pharmacol Ther 2003; 18:117-24. [PMID: 12848633 DOI: 10.1046/j.1365-2036.2003.01651.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND The efficacy of proton pump inhibitors in functional dyspepsia is modest and the prognostic factors are almost unknown. METHODS Data were pooled on patients (n = 826) with a diagnosis of functional dyspepsia from two placebo-controlled trials who were treated with omeprazole, 10 or 20 mg once daily, for 4 weeks. Self-administered questionnaires for the assessment of symptoms and health-related quality of life were completed before entry, and epigastric pain/discomfort was recorded on diary cards. Treatment success was defined as the complete absence of epigastric pain/discomfort on each of the last 3 days of week 4. Prognostic factors were identified by multiple logistic regression analysis. RESULTS The most discriminating predictor of treatment success (P < 0.0001) was the number of days with epigastric pain/discomfort during the first week of treatment. Fewer days with symptoms during the first week led to higher response rates at 4 weeks. In addition, age > 40 years, bothersome heartburn, low scores for bloating, epigastric pain and diarrhoea, history of symptoms for < 3 months and low impairment of vitality at baseline were identified as positive predictors of outcome. CONCLUSIONS Early response to treatment with a proton pump inhibitor, during the first week, seems to predict the outcome after 4 weeks in patients with functional dyspepsia.
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85
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Stanghellini V, De Ponti F, De Giorgio R, Barbara G, Tosetti C, Corinaldesi R. New developments in the treatment of functional dyspepsia. Drugs 2003; 63:869-92. [PMID: 12678573 DOI: 10.2165/00003495-200363090-00003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Functional dyspepsia is a clinical syndrome defined by chronic or recurrent pain or discomfort in the upper abdomen of unknown origin. Although generally accepted, investigators differently interpret this definition and clinical trials are often biased by inhomogeneous inclusion criteria. The poorly defined multifactorial pathogenesis of dyspeptic symptoms has hampered efforts to develop effective treatments. A general agreement exists on the irrelevant role played by Helicobacter pylori in the pathophysiology of functional dyspepsia. Gastric acid secretion is within normal limits in patients with functional dyspepsia but acid related symptoms may arise in a subgroup of them. Proton pump inhibitors appear to be effective in this subset of patients with dyspepsia. Non-painful dyspeptic symptoms are suggestive of underlying gastrointestinal motor disorders and such abnormalities can be demonstrated in a substantial proportion of patients. Postprandial fullness and vomiting have been associated with delayed gastric emptying of solids, and early satiety and weight loss to postcibal impaired accommodation of the gastric fundus. Prokinetics have been shown to exert beneficial effects, at least in some patients with dyspepsia. In contrast, drugs enhancing gastric fundus relaxation have been reported to improve symptoms, although conflicting results have also been published. An overdistended antrum may also generate symptoms, but its potential pathogenetic role and the effects of drugs on this abnormality have never been investigated formally. Visceral hypersensitivity plays a role in some dyspeptic patients and this abnormality is also a potential target for treatment. Both chemo- and mechanoreceptors can trigger hyperalgesic responses. Psychosocial abnormalities have been consistently found in functional digestive syndromes, including dyspepsia. Although useful in patients with irritable bowel syndromes (IBS), antidepressants have been only marginally explored in functional dyspepsia. Among the new potentially useful agents for the treatment of functional dyspepsia, serotonin 5-HT(4) receptor agonists have been shown to exert a prokinetic effect. Unlike motilides, 5-HT(4) receptor agonists do not appear to increase the gastric fundus tone and this may contribute to improve symptoms. 5-HT(3) receptor antagonists have been investigated mainly in the IBS and the few studies performed in functional dyspepsia have provided conflicting results. Also, kappa-opioid receptor agonists might be useful for functional digestive syndromes because of their antinociceptive effects, but available results in functional dyspepsia are scanty and inconclusive. Other receptors that represent potential clinical targets for antagonists include purinoceptors (i. e., P2X2/3 receptors), NMDA receptors (NR2B subtype), protease-activated receptor-2, the vanilloid receptor-1, tachykinin receptors (NK(1)/NK(2)) and cholecystokinin (CCK)(1) receptors.
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Affiliation(s)
- Vincenzo Stanghellini
- Department of Internal Medicine and Gastroenterology, University of Bologna, Bologna, Italy.
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86
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Affiliation(s)
- O Nyrén
- Department of Medical Epidemiology, Karolinska Institutet, Box 281, S-171 77 Stockholm, Sweden.
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