Review article: Strategies to determine whether hypergastrinaemia is due to Zollinger-Ellison syndrome rather than a more common benign cause.

Abstract:

BACKGROUND:As there is considerable overlap between the fasting serum gastrin concentrations found in Zollinger-Ellison syndrome and various common conditions such as Helicobacter pylori infection and acid suppressing medication use, establishing the cause of hypergastrinaemia in individual cases can sometimes be difficult. AIM:To review the causes of hypergastrinaemia and the role of additional non-invasive investigations in hypergastrinaemic patients. METHODS:Review of articles following a Pubmed search. RESULTS:As gastrinomas may cause serious complications and be potentially life threatening, investigation of hypergastrinaemic patients should particularly focus on confirming or refuting the diagnosis of Zollinger-Ellison syndrome. Establishing the cause of hypergastrinaemia may be difficult when there is only a mild-to-moderate elevation of fasting serum gastrin concentration and concurrent treatment with proton pump inhibitor drugs and the presence of H. pylori infection can both confuse the clinical picture. A variety of provocative tests are therefore useful for establishing whether a hypergastrinaemic patient has a gastrinoma and current evidence suggests that the secretin test should be used first line. CONCLUSIONS:We suggest an algorithm for the investigation of patients found to have an elevated fasting serum gastrin concentration and address the roles of gastrin stimulation tests in current clinical practice.

journal_name

Aliment Pharmacol Ther

authors

Murugesan SV,Varro A,Pritchard DM

doi

10.1111/j.1365-2036.2009.03976.x

subject

Has Abstract

pub_date

2009-05-15 00:00:00

pages

1055-68

issue

10

eissn

0269-2813

issn

1365-2036

pii

APT3976

journal_volume

29

pub_type

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