Document Detail

Effect of parenteral omeprazole and ranitidine on gastric pH and the outcome of bleeding peptic ulcer.
MedLine Citation:
PMID:  8583073     Owner:  NLM     Status:  MEDLINE    
The pharmacotherapy of bleeding peptic ulcer is directed at attempting to keep the gastric pH above the proteolytic range for pepsin. In this randomized, prospective, open clinical trial we have compared the effects and outcome of omeprazole versus ranitidine in patients with bleeding peptic ulcer. Of 219 consecutive patients with upper gastrointestinal bleeding, 51 (23.2%) had an ulcer with endoscopic predictors of rebleeding at the time of diagnosis. These 51 patients were selected at random to receive either omeprazole (80 mg bolus and 40 mg/12 h i.v.) or ranitidine (50 mg/4 h i.v.). No endoscopic therapy was performed at the time of diagnosis. Twenty of these patients with duodenal ulcer (n = 10 omeprazole, n = 10 ranitidine) underwent 24-h gastric pH monitoring. Both groups were homogeneous in all clinical and endoscopic parameters. No differences in blood transfusion units, time of hospitalization, the lowest hematocrit measured, and mortality rates were observed between the groups. However, omeprazole reduced the number of rebleeding episodes (p = 0.1) and the need for surgery (3.8% vs. 22.7%; p = 0.05). Omeprazole also reduced the amount of time the gastric pH was < 6 (15.3 +/- 5.9% vs. 61.8 +/- 5.6%, p < 0.0001). We conclude that parenteral omeprazole is much more effective than ranitidine in keeping the gastric pH above the proteolytic range for pepsin in bleeders and that this might explain a better outcome in a subset of patients with bleeding peptic ulcers treated with parenteral omeprazole.
A Lanas; A Artal; J M Blás; M T Arroyo; J Lopez-Zaborras; R Sáinz
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of clinical gastroenterology     Volume:  21     ISSN:  0192-0790     ISO Abbreviation:  J. Clin. Gastroenterol.     Publication Date:  1995 Sep 
Date Detail:
Created Date:  1996-03-21     Completed Date:  1996-03-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7910017     Medline TA:  J Clin Gastroenterol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  103-6     Citation Subset:  IM    
Division of Gastroenterology, Hospital Clínico Universitario, Zaragoza, Spain.
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MeSH Terms
Anti-Ulcer Agents / administration & dosage*
Duodenal Ulcer / complications*
Gastric Acidity Determination
Hydrogen-Ion Concentration
Injections, Intravenous
Omeprazole / administration & dosage*
Peptic Ulcer Hemorrhage / drug therapy*
Prospective Studies
Ranitidine / administration & dosage*
Stomach Ulcer / complications*
Reg. No./Substance:
0/Anti-Ulcer Agents; 66357-35-5/Ranitidine; 73590-58-6/Omeprazole

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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