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Asociación Mexicana de Gastroenterología

2007, Number 1

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Rev Gastroenterol Mex 2007; 72 (1)

Usefulness of endoscopic identification of anthral nodularity in the diagnosis of infection by Helicobacter pylori

Marín PR, Álvarez MHE, Marín DR

Language: Spanish
References: 21
Page: 6-9
PDF size: 77.61 Kb.


ABSTRACT

Background: Several endoscopic signs of infection due to Helicobacter pylori has been described previously, all of them with poor sensibility and specificity, with the exception of antral nodularity (AN). Objective: To investigate the utility of antral nodularity as an endoscopic sign of gastric infection due to Helicobacter pylori. Methodology: esofagogastroduodenoscopy was performed to 274 dyspeptic patients searching the existence of antral nodularity and Helicobacter pylori infection by ureasa rapid test (URT). Results: In 125 Hp+ (URT+) patients we found 41 AN+ URT+ (95.3%) and only 2 AN+ URT- (4.7%). Antral nodularity has a 32.8% sensibility, 98.6% specificity, 95.3% predictive positive value, 63.6% predictive negative value and 68.6% diagnostic exactitude for diagnosis of Helicobacter pylori. Conclusions: Antral nodularity is a specific and useful endoscopic sign for the diagnosis of Helicobacter pylori infection.


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