[Patient-Related Factors Affecting Bowel Preparation Prior to Colonoscopy.].

Introduction: Colorectal cancer is a major health problem worldwide because it is the third most common cancer and the third leading cause of cancer mortality in western countries. Screening for colorectal cancer in asymptomatic patients is crucialfor reducing the incidence and colonoscopy is one of the methods of choice. The ability of colonoscopy in detecting small lesions is clearly influenced by the quality of the colonic preparation.

[Pancreatic intraductal papillary mucinous neoplasm: Case report and review of the literature].

Pancreatic intraductal papillary mucinous neoplasias (IPMN) are increasingly detected in medical diary practice because of increased awareness of their existence and because of increased use of cross-sectional imaging studies. IPMN are diagnosed incidentally in most cases and are classified as branch-duct IPMN, main-duct IPMN and combined-type IPMN. The last two types show a more aggressive biological behavior and surgery is recommended.

[Pilot test for Helicobacter pylori detection with ammonia breath test].

Background: In Argentina we have little access to the more sensitive and specific non-invasive diagnostic methods for the detection of Helicobacter pylori (HP), such as the urea breath test. The upper gastrointestinal videoendoscopy, with biopsy for histological analysis and rapid urease test remains as the usual method in our country, but the cost is high and the accessibility is also limited. For this reason we propose to develop a new fast, accurate, accessible and inexpensive method for measuring the concentration of expired NH in order to achieve a diagnosis of active infection.

HELICOBACTER PYLORI PREVALENCE IN PATIENTS WITH CELIAC DISEASE: results from a cross-sectional study.

Background: Some previously published studies have suggested an inverse relationship between celiac disease and Helicobacter pylori, raising the possibility of the protective role Helicobacter pylori could have against celiac disease development. Nevertheless, this association is inconclusive.

Objectives: To determine the prevalence of Helicobacter pylori infection in celiac subjects.

Risk of infertility in patients with celiac disease: a meta-analysis of observational studies.

Context: Celiac disease is an autoimmune disorder of the small intestine associated with several extra-intestinal features, such as reproductive disorders. The relationship between celiac disease and infertility has been previously assessed, with conflicting results.

Objectives: We seek to determine the relationship between celiac disease and infertility.

A controlled pilot study on the efficacy of a low dose antibiotic for the treatment of chronic constipation in patients receiving a high fiber diet.

Background And Aims: In a previous uncontrolled experiment, oral vancomycin improved the symptoms (S) of chronic constipation (CC). The aim of this 21 day controlled pilot study was to determine if a low lincomycin dose improved the S of CC patients unresponsive to a high fiber diet.

Methods: On days 0-to-10, patients were randomized to 500 mg oral lincomycin + high fiber (L + F) or to placebo + high fiber (P + F).

[Influence of proton pump inhibitors on intestinal fermentative profile: a case-control study].

Introduction: Proton pump inhibitors could have an impact on the results of breath tests performed in patients with irritable bowel syndrome. This impact could be due to the development of small intestine bacterial overgrowth.

Objective: To compare the prevalence of fermentative profile alterations of irritable bowel syndrome patients exposed and not-exposed to proton pump inhibitor therapy.

Risk of colorectal neoplasia in patients with celiac disease: a multicenter study.

Background And Aims: The association of celiac disease with colorectal neoplasia is controversial. The aim of this study was to determine the risk of colorectal neoplasia among patients with celiac disease.

Methods: We carried out a multicenter, retrospective case-control study, within four community hospitals.

[Predominance of constipation in subjects with hydrogen-consuming intestinal flora].

Introduction: There is growing evidence that a disorder in intestinal microbiota would contribute to the development of symptoms in irritable bowel syndrome (IBS) patients. In a subgroup, a remarkably low hydrogen production in lactulose breath test (LBT) is observed. We presume in these patients a predominance of hydrogen consuming gut flora.

[Variation of intestinal fermentative profile after sequential therapy with rifaximin/probiotics].

Introduction: There is evidence suggesting that intestinal microbiota plays a role in the development of irritable bowel syndrome. Its activity can be indirectly assessed using the lactulose breath test. Antibiotics like rifaximin or probiotics can be used as therapeutic options for patients with irritable bowel syndrome.

[Symptomatic correlation variables in patients with pathological gastroesophageal reflux disease].

Unlabelled: INTRODUCTION. There are three indexes that correlate symptoms and reflux episodes in pHmetry tests. The utility of these indexes have been evaluated in prospective trials but their advantages and disadvantages remain controversial.

[Comparative clinical efficacy of a probiotic vs. an antibiotic in the treatment of patients with intestinal bacterial overgrowth and chronic abdominal functional distension: a pilot study].

Introduction: Patients with intestinal bacterial overgrowth (SIBO) are usually treated with different antibiotics. Certain probiotics have proved to be clinically effective in patients with abdominal distension.

Objective: To compare the short-term clinical efficacy of metronidazol vs.

[Frequency of bacterial overgrowth in patients with clinical lactose intolerance].

Introduction: Some patients complain of digestive symptoms related to diary products intake. This intolerance could be associated with an intestinal bacterial overgrowth or an increased fermentative intestinal profile and not due to lactose malabsorption.

Objective: To estimate the prevalence of bacterial overgrowth in subjects with digestive symptoms related to diary products intolerance.

[On-demand treatment of nonerosive reflux disease: omeprazole plus bicarbonate powder versus omeprazole capsules].

Background: Nonerosive reflux disease (NERD) has a chronic and benign course. On-demand therapy would constitute a useful strategy for its management.

Objective: To assess efficacy of on-demand treatment with omeprazole powder (OBA: omeprazole 20 mg, sodium bicarbonate 1680 mg, alginic acid 250 mg) versus omeprazole capsules 20 mg (OMZ) in the control of symptoms.

[Acid suppression capacity of omeprazole, sodium bicarbonate and alginic acid in an oral powder combination].

Background: The combination of omeprazole, sodium bicarbonate and alginic acid protects omeprazole from acid degradation and enhances the speed of action of the proton pump inhibitors.

Aim: To assess acid suppression capacity and speed of action of an oral powder combination (omeprazole 20 mg, sodium bicarbonate 1680 mg and alginic acid 250.08 mg) in healthy subjects, using gastric 24 h pHmetry.

[Diagnostic and therapeutic algorithm in functional dyspepsia].

Introduction: Dyspepsia is a word that means bad digestion. In the conviction of which it is a question of an entity that it includes different disciplines, we realize a meeting consensus to discuss and to resolve a diagnostic and therapeutic algorithm of national order.

Objective: To agree on a national algorithm applicable to the functional dyspepsia.

[Breath hydrogen levels do not predict fiber intolerance in irritable bowel syndrome with constipation].

Background: Irritable Bowel Syndrome (IBS) is characterized by the worsening of symptoms with a high fiber diet. This intolerance could be related to an increase in colonic bacterial fermentation. The hydrogen breath test (HBT) is a marker of the intestinal micro flora fermentative capacity.

[Clinical-phmetric variants in gastroesophageal reflux disease].

Background: Ambulatory pH monitoring, that defines acid reflux episodes as a fall in pH below 4, fail to diagnose weakly acidic reflux, which sometimes is related to the occurrence of symptoms.

Aim: To establish the incidence of clinical-phmetric variables that allow to confirm or discard the presence of gastroesophageal reflux and its symptomatic correlation.

Patients And Methods: [corrected] During a period of 12 months, 100 patients (58 males and 42 females) were consecutively included for 24 hour esophageal ambulatory phmetry.