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      Efecto del tratamiento erradicador para Helicobacter pylori en pacientes con dispepsia funcional Translated title: Effect to Helicobacter pylori eradication on patients with functional dyspepsia

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          Abstract

          Objetivo: este estudio ha tenido un doble objetivo: por un lado, evaluar el efecto del tratamiento erradicador para Helicobacter pylori en la respuesta sintomática de pacientes diagnosticados de dispepsia funcional y, por otro, determinar si los hallazgos histológicos podían servir como predictor de la efectividad de la terapia. En particular, se trató de averiguar si la presencia de gastritis antral (la que se asocia a la enfermedad ulcerosa péptica) podría predecir una mayor respuesta sintomática al tratamiento erradicador en los pacientes con dispepsia funcional e infección por Helicobacter pylori. Pacientes y métodos: estudio prospectivo, monocéntrico y aleatorizado, que incluyó a 48 pacientes con dispepsia funcional e infección por Helicobacter pylori (27 mujeres y 21 hombres, con edad media de 37 ± 13,5 años). Veintisiete pacientes recibieron el tratamiento erradicador (rabeprazol, claritromicina y amoxicilina durante 10 días, seguido de 20 mg/día de rabeprazol 3 meses) y 21 el tratamiento control (20 mg/día de rabeprazol 3 meses). Los pacientes fueron seguidos durante un año. Todos rellenaron el Cuestionario de calidad de vida asociada a dispepsia, que evalúa cuatro apartados: intensidad de los síntomas habituales, intensidad del dolor de estómago, incapacidad debida al dolor y satisfacción con la salud. Resultados: existió una mejoría significativa (p < 0,002) en los síntomas de los pacientes, tanto a los 6 como a los 12 meses tras el inicio del tratamiento, que además fue común a las dos pautas de tratamiento. En el análisis de regresión lineal múltiple, los efectos del tratamiento erradicador y de tener una sintomatología menos intensa antes de recibir el tratamiento, fueron los dos únicos factores independientes de forma significativa. La respuesta al tratamiento erradicador a los 6 meses fue significativamente mayor que con el tratamiento control (p = 0,01) en los pacientes con gastritis de predominio antral y en el apartado concreto de los síntomas habituales. Conclusiones: ambos tratamientos producen una mejoría sintomática significativa en los pacientes con dispepsia funcional. Se observa una tendencia hacia un beneficio sintomático mayor con el tratamiento erradicador respecto al control en pacientes con dispepsia funcional y en un medio con elevada prevalencia de infección por Helicobacter pylori. Existe una tendencia hacia la mejoría sintomática con el tratamiento erradicador en los pacientes que tienen una gastritis de predominio antral.

          Translated abstract

          Objective: this study evaluated Helicobacter pylori eradication therapy in terms of symptomatic response in patients with functional dyspepsia. On the other hand, we analyzed the importance of histologic findings as a predictor of treatment response. In particular, we studied whether antral gastritis (which is associated with peptic ulcer) may predict a greater symptomatic response to Helicobacter pylori eradication in functional dyspepsia. Patients and methods: this prospective, randomized, single-center trial included 48 patients with functional dyspepsia and Helicobacter pylori infection (27 women and 21 men, mean age 37 ± 13.5 years). Twenty-seven patients received a 10-day course of rabeprazole, amoxicillin, and clarithromycin (eradication group), followed by 20 mg of rabeprazole for 3 months. Twenty-one patients received 20 mg of rabeprazole for 3 months (control group). Patients were followed up over a 1-year period. All patients completed the Dyspepsia-Related Health Scale Questionnaire, which studies four dimensions: pain intensity, pain disability, non-pain symptoms, and satisfaction with dyspepsia-related health. Results: there was significant symptomatic improvement (p < 0.002) after 6 and 12 months, which was similar with both treatments. In the multivariate analyses, eradication therapy and less severe symptoms before treatment were the only independent factors. The symptomatic response to Helicobacter pylori eradication after 6 months was significantly greater as compared to control therapy (p = 0.01) in patients with antral gastritis and in the non-pain symptoms dimension of the questionnaire. Conclusions: both treatments proved to be clinically beneficial in patients with functional dyspepsia. We observed a tendency to greater symptomatic benefit with Helicobacter pylori eradication therapy when compared to control treatment in patients with functional dyspepsia and in a population with a high prevalence of his infection. There is a tendency to symptomatic benefit with Helicobacter pylori eradication therapy in patients with antral gastritis.

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          Most cited references53

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          Helicobacter pylori infection.

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            Functional gastroduodenal disorders.

            While widely used in research, the 1991 Rome criteria for the gastroduodenal disorders, especially symptom subgroups in dyspepsia, remain contentious. After a comprehensive literature search, a consensus-based approach was applied, supplemented by input from international experts who reviewed the report. Three functional gastroduodenal disorders are defined. Functional dyspepsia is persistent or recurrent pain or discomfort centered in the upper abdomen; evidence of organic disease likely to explain the symptoms is absent, including at upper endoscopy. Discomfort refers to a subjective, negative feeling that may be characterized by or associated with a number of non-painful symptoms including upper abdominal fullness, early satiety, bloating, or nausea. A dyspepsia subgroup classification is proposed for research purposes, based on the predominant (most bothersome) symptom: (a) ulcer-like dyspepsia when pain (from mild to severe) is the predominant symptom, and (b) dysmotility-like dyspepsia when discomfort (not pain) is the predominant symptom. This classification is supported by recent evidence suggesting that predominant symptoms, but not symptom clusters, identify subgroups with distinct underlying pathophysiological disturbances and responses to treatment. Aerophagia is an unusual complaint characterized by air swallowing that is objectively observed and troublesome repetitive belching. Functional vomiting refers to frequent episodes of recurrent vomiting that is not self-induced nor medication induced, and occurs in the absence of eating disorders, major psychiatric diseases, abnormalities in the gut or central nervous system, or metabolic diseases that can explain the symptom. The current classification requires careful validation but the criteria should be of value in future research.
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              The efficacy of proton pump inhibitors in nonulcer dyspepsia: a systematic review and economic analysis.

              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. 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. 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. PPI therapy may be a cost-effective therapy in nonulcer dyspepsia, provided generic prices are used.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                diges
                Revista Española de Enfermedades Digestivas
                Rev. esp. enferm. dig.
                Sociedad Española de Patología Digestiva (Madrid, Madrid, Spain )
                1130-0108
                September 2008
                : 100
                : 9
                : 532-539
                Affiliations
                [03] Toledo orgnameHospital Virgen de la Salud orgdiv1Servicio de Farmacología Clínica
                [01] orgnameHospital Virgen de la Salud orgdiv1Servicio de Aparato Digestivo
                [02] orgnameHospital Virgen de la Salud orgdiv1Servicio de Anatomía Patológica
                Article
                S1130-01082008000900002
                10.4321/s1130-01082008000900002
                f9c4676c-427e-4b4f-bd26-baf702fbfd51

                This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 International License.

                History
                : 19 February 2008
                : 30 July 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 33, Pages: 8
                Product

                SciELO Spain


                Dispepsia funcional,Helicobacter pylori,Tratamiento erradicador,Gastritis,Functional dyspepsia,Eradication therapy

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