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  • Title: Should non-invasive Helicobacter pylori testing replace endoscopy in investigation of dyspepsia?
    Author: McColl K.
    Journal: Helicobacter; 2000; 5 Suppl 1():S11-5; discussion S27-31. PubMed ID: 10828749.
    Abstract:
    Our knowledge of Helicobacter pylori infection is now changing the way in which we investigate patients presenting with dyspepsia, with noninvasive H. pylori testing replacing endoscopy. Non-invasive H. pylori testing has been shown to be useful in predicting the underlying diagnosis in patients presenting with dyspepsia. Several studies have shown that 20-50% of dyspeptic patients with a positive H. pylori test will have evidence of underlying ulcer disease or duodenitis. In contrast, less than 5% of dyspeptic patients with a negative H. pylori test will have evidence of ulcer disease and in these subjects, the likeliest diagnosis is gastroesophageal reflux disease. This has led to many groups recommending that noninvasive H. pylori testing should be used in place of endoscopy, with all those testing positive being given anti-H. pylori therapy and those testing negative being treated symptomatically. One concern about nonendoscopic management of dyspeptic patients is the possibility of missing underlying malignancy but studies have shown that in western countries this is rare in patients less than 55 years of age presenting with dyspepsia in the absence of sinister symptoms. There is increasing evidence supporting eradication of H. pylori infection in dyspeptic patients without ulcer disease. Meta-analysis of four prospective randomized trials indicates that such treatment is superior to placebo in about 10% of subjects. H. pylori-positive dyspeptic patients are also recognized to have an increased risk of developing ulcer disease in the future which will be removed by treating the infection. Another justification for eradicating the infection in the absence of ulcer disease is the fact that H. pylori infection is now proven to be a risk factor for gastric cancer. Prospective randomized studies comparing endoscopy with noninvasive H. pylori testing in the management of dyspeptic patients indicate that managing dyspepsia by noninvasive H. pylori testing is at least as effective as endoscopic-based management in producing symptomatic resolution and saves a substantial number of endoscopic procedures. There is therefore now substantial evidence indicating that noninvasive H. pylori testing should be used in place of endoscopy to determine the management of younger dyspeptic patients without sinister symptoms and who are not taking nonsteroidal anti-inflammatory drugs.
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