Low-grade dysplasia in Barrett's esophagus: A problematic diagnosis.

Although low-grade dysplasia (LGD) in Barrett's esophagus (BE) is a histopathological diagnosis based on different histological abnormalities, it is still problematic for different reasons. Patients without confirmed diagnosis of LGD undergo unnecessary and intensified follow-up where the risk of progression is low in the majority of cases. In contrast, the presence of confirmed LGD indicates a high risk of progression.

[Why is it important to detect atrophic gastritis and gastric intestinal metaplasia? What is the proper way to do it?].

Gastric intestinal metaplasia and atrophic gastritis are a known precancerous condition (PCC) of the stomach, meaning that patients with PCC are at risk for gastric cancer and so, diagnosis and risk categorization for these patients is relevant. The aim of this review is to provide an update regarding the problem, diagnosis, and management of PCCs with an emphasis on the role of appropriate endoscopic detection.

and corpus gastric pathology are associated with lower serum ghrelin.

Aim: To evaluate the association of (), genotype, and type of gastric pathology with ghrelin, leptin and nutritional status.

Methods: Fasted dyspeptic adults (18-70 years) referred for an upper digestive endoscopy were enrolled in this cross-sectional study. Height and weight were assessed for body mass index (BMI) calculation.

Occurrence of Mutations in the Antimicrobial Target Genes Related to Levofloxacin, Clarithromycin, and Amoxicillin Resistance in Helicobacter pylori Isolates from Buenos Aires City.

Domain V of 23S rRNA, gyrA and gyrB Quinolones Resistance-Determining Region (QRDR), and pbp-1A gene point mutations were investigated in Helicobacter pylori-resistant isolates from three centres of Buenos Aires. Minimal inhibitory concentrations (MICs) were performed in 197 isolates from 52 H. pylori-positive naive patients by agar dilution method.

[Role of Helicobacter pylori coccoid forms in infection and recrudescence].

Helicobacter pylori is a spiral Gram-negative bacillus, which colonizes the human stomach and plays a key role in the pathogenesis of a number of gastroduodenal diseases. However, when expose to environmental stressed conditions, such as increased oxygen tension, extended incubation and exposure to antibiotics, Helicobacter pylori is able to entering the viable but nonculturable state, in which the bacterium modifies its morphology from a spiral to coccoid form, as a manifestation of cell adaptation to these adverse conditions. In gastric tissues, viable coccoid forms may remain latent for long time and retain virulence factors, so these forms possibly contribute to the treatment failures and recurrence of Helicobacter pylori infection and gastroduodenal diseases as well.

[Mediastinis related to esophagogastric disease and injury. Warning clinical signs and independent predictors of intrahospitalary survival].

Objective: To identify clinical warning signs and independent predictors of survival in mediastinitis related to esophagogastric diseases and injuries.

Methods: From March 1998 to February 2009, 36 patients with a mean age of 55.7 +/- 12.

[Image-guided percutaneous biopsy of gastric lesions with suspicion of malignancy and negative endoscopic biopsies: report of our experience and revision of the literature].

Background: Endoscopic biopsy is the most efficient way to obtain a biopsy specimen from neoplastic lesions located in the stomach. Therefore, it is the procedure of choice to obtain a histologic diagnosis of gastric cancer. Image guided percutaneous biopsy is an alternative method to obtain histologic material for definitive diagnosis when the biopsies are negative for neoplastic cells in several endoscopies.

[Predictors of intrahospitalary mortality in the upper gastrointestinal variceal bleeding due to chronic liver disease treated endoscopically].

Unlabelled: Upper gastrointestinal variceal bleeding is one of the most serious complications in patients with chronic liver disease. The aim of this trial is to identify in hospital mortality predictors in this illness.

Material And Methods: 106 hospitalizations due to this disease from October 2001 to April 2006 in cohort design.

[Therapeutics of infection by Helicobacter pylori in 2008].

Eradication therapy for Helicobacter pylori is recommended in a number of clinical conditions as developed in Maastricht Consensus (I, II, III). In this state of art we discuss the results of current eradication therapies, the new approaches to the management of infection (new antibiotics and eradication schemes) and antimicrobial resistance.

[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.

[GERD related respiratory symptoms: diagnosis and treatment].

Gastroesophageal reflux disease can cause respiratory symptoms. These symptoms are triggered by reflux events that reach the pharynx, causing microaspiration or through vagal reflex. Respiratory symptoms can be vague and coexist with gastroesophageal reflux disease, without a real link between the two entities.

An evidence-based, Latin-American consensus on gastro-oesophageal reflux disease.

In recognition of the high prevalence of gastro-oesophageal reflux disease (GORD) and its importance in Latin America, the InterAmerican Association of Gastroenterology and the InterAmerican Society of Digestive Endoscopy organized a Latin-American Consensus on GORD in Cancun, Mexico in September 2004. The main objectives of the consensus meeting were to provide evidence-based guidance with respect to the diagnosis and treatment of GORD, relevant to all countries in the region. The methodology, results and recommendations of the consensus are described in detail.