학술논문

The Dose of Omeprazole Required to Achieve Adequate Intraesophageal Acid Suppression in Patients with Gastroesophageal Junction Specialized Intestinal Metaplasia and Barrett's Esophagus
Original Article
Document Type
Academic Journal
Source
Digestive Diseases and Sciences. August 2013, Vol. 58 Issue 8, p2253, 8 p.
Subject
Care and treatment
Endoscopy
Medical research
Omeprazole
Medicine, Experimental
Language
English
ISSN
0163-2116
Abstract
Author(s): Joshua T. Watson [sup.1] [sup.2], Fouad J. Moawad [sup.1] [sup.2], Ganesh R. Veerappan [sup.1] [sup.2], John T. Bassett [sup.1] [sup.2], Corinne L. Maydonovitch [sup.1], John D. Horwhat [sup.1] [sup.2], [...]
Background The mainstay of medical therapy for Barrett's esophagus is normalization of esophageal acid exposure with proton pump inhibitors (PPIs). However, the optimal dose and whether once daily or twice daily is required for acid suppression is unknown. Aim The purpose of this study was to assess whether adequate intra-esophageal acid suppression could be achieved with once daily versus twice daily omeprazole in patients with gastroesophageal specialized intestinal metaplasia (GEJSIM), short-segment (SSBE) and long-segment Barrett's esophagus (LSBE). Methods Patients with GEJSIM and Barrett's esophagus underwent upper endoscopy with 48-h wireless pH capsule while on once daily 20 mg omeprazole for at least 1 week. If intra-esophageal acid was not adequately controlled, defined as pH value Results A total of 36 patients completed the study (10 patients had GEJSIM, 16 patients had SSBE, and 10 patients had LSBE). Normalization of intraesophageal pH was achieved in 28 patients (78 %) with once daily PPI and eight patients required twice daily PPI. There was no significant difference between the three groups in the proportion of patients requiring high dose PPI (GEJSIM 10 %, SSBE 25 %, LSBE 30 %, p = 0.526). Conclusions The majority of patients with Barrett's esophagus were controlled with once daily low dose PPI and only a minority required twice daily dosing, regardless of the length of Barrett's mucosa.