title: Does quantitative serologic testing for Helicobacter pylori predict peptic ulcer disease in cirrhosis?
abstract: BACKGROUND
  Helicobacter Pylori is strongly associated with peptic ulcer disease. A correlation between high IgG serum antibody concentrations and a clinical diagnosis has been reported. It has been recognized that peptic ulcer disease occurs with increased frequency in cirrhosis. In this study, we attempted to establish a relation between the magnitude of serum IgG antibody to H pylori and the endoscopic diagnoses in H pylori-infected cirrhotic patients.
  
  
  METHODS
  All cirrhotic patients who had undergone esophagogastroduodenoscopy with a positive H pylori IgG serology and who did not receive anti-H pylori treatment or take medications noxious to the gastroduodenal mucosa were included in the study. H pylori IgG serology was determined by an enzyme-linked immunosorbent assay with values of greater than 50 units/mL being seropositive. The functional reserve of cirrhosis was classified by modified Pugh-Child criteria.
  
  
  RESULTS
  One hundred four seropositive cirrhotic patients were recruited. The serum IgG titers ranged from 51 to 1200 units/mL with a peak frequency at 50 to 99 units/mL (35. 6%). Statistical analysis did not reveal any relation between the quantitative H pylori IgG values and the endoscopic diagnoses, which included gastric ulcers, duodenal ulcers, gastroduodenal erosions, and normal findings.
  
  
  CONCLUSIONS
  In cirrhosis, the magnitude of H pylori IgG serology cannot be used to predict the presence or absence of peptic ulcer disease.
authors.affiliation: Department of Internal Medicine, Division of Gastroenterology, Chi Mei Foundation Hospital, Yung Kang City, Tainan, Taiwan.
authors.forename: C J
authors.initials: CJ
authors.lastname: Tsai
mesh_terms: D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D000907:Antibodies, Bacterial / Q000032:analysis*; D016099:Endoscopy, Gastrointestinal; D005260:Female; D016481:Helicobacter Infections / Q000150:complications / Q000175:diagnosis*; D016480:Helicobacter pylori / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008103:Liver Cirrhosis / Q000150:complications / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000175:diagnosis* / Q000209:etiology; D011237:Predictive Value of Tests; D011446:Prospective Studies; D018709:Statistics, Nonparametric
chemical_list: D000907:Antibodies, Bacterial; D007074:Immunoglobulin G