Gastroesophageal reflux (GER) disorder was studied in children and adolescents with chronic and/or recurrent rhinosinusitis not associated with bronchial asthma. Ten children with a clinical and radiological diagnosis of chronic and/or recurrent rhinosinusitis, consecutively attended at the Pediatric Otolaryngology Outpatient Clinic, Federal University of São Paulo, were evaluated. Prolonged es...

BACKGROUND Proton pump inhibitors (PPI) are the drugs of choice for treatment of gastroesophageal reflux disease (GERD). Omeprazole, the first PPI commercialized, is now available in different formulations. OBJECTIVES To compare the efficacy of different omeprazole formulations on gastric acid secretion measured by intragastric and esophageal pH monitoring in patients with reflux esophagitis....

BACKGROUND A Stanford University study reported that in asymptomatic GERD patients who were being treated with a proton pump inhibitor (PPI), 50% had pathologic esophageal acid exposure. AIM We considered the possibility that the high prevalence of pathologic esophageal reflux might simply have resulted from calculating acidity as time pH < 4. METHODS We calculated integrated acidity and ti...

Gastroesophageal reflux disease (GERD) is one of the most common esophageal diseases in developed countries. It is widely believed that GERD symptoms are caused by acid refluxate within the esophagus, so ambulatory 24 hour pH-monitoring became the gold standard in detecting gastroesophageal reflux. Traditional ambulatory pH monitoring is unable to detect a gastroesophageal reflux with pH >4. Th...

The aim of this study was to investigate influence of delayed gastric emptying on postprandial reflux in esophageal pH. Sixty-nine consecutive patients underwent 24 hour (h) esophageal pH monitoring and gastric emptying. In 24 h esophageal pH monitoring, % postprandial reflux pH<4 for 2 h after each meal (% PRT) was extracted from the 24 h pH profile. After solid test meal (1 mCi, Tc99m) was gi...

Patients with refractory to proton pump inhibitors (PPIs) gastroesophageal reflux disease (GERD) symptoms are approximately 40% and represent a very common problem in clinical practice. Many of these patients do not have GERD, but suffer from functional heartburn or hypersensitive esophagus. After thorough clinical evaluation and failure of escalation of PPI dose, diagnostic investigations incl...

BACKGROUND The aim of this study was to investigate the effect of Helicobacter pylori (H. pylori) eradication in selected H. pylori-positive patients with a primary diagnosis of gastro-esophageal reflux disease (GERD) by using the 3-h postprandial esophageal pH monitoring. METHODS We recruited patients with erosive esophagitis at endoscopy and H. pylori infection at histology, successfully cu...

Ambulatory 24-hr esophageal pH monitoring is considered the gold standard for diagnosing gastroesophageal reflux disease. The aim of this study was to establish normal values for gastroesophageal acid exposure in healthy Koreans. Fifty healthy volunteers (24 males and 26 females; mean age, 45 yr) without reflux symptoms and without reflux esophagitis or hiatal hernia on upper endoscopy underwen...