title: Helicobacter pylori eradication lowers esophageal sphincter pressures in functional dyspepsia patients.
abstract: OBJECTIVE
  Helicobacter pylori infection is the most common cause of gastroduodenal diseases. The role H. pylori eradication in functional dyspepsia patients is contradictory. We performed this study to determine the effects of H. pylori eradication in functional dyspepsia patients with respect to physiological and histological parameters including esophageal sphincter functions.
  
  
  METHODS
  We studied 20 functional dyspepsia patients, whose H. pylori infection was confirmed by histology and urease test. We also confirmed eradication using the same methods after three months. We performed 24-hour esophageal pH monitoring, esophageal manometry, meal stimulated gastrin release test and measured dyspepsia severity score and gastric emptying time before and three months after eradication. Eradication regimen consisted of omeprazol 20 mg b.i.d., clarithromycin 500 mg b.i.d. and metranidazol 500 mg b.i.d., for two weeks. Gastric inflammation and H. pylori density within biopsy samples from the antrum (n = 4), corpus (n = 4), cardia (n = 2), fundus (n = 2), duodenum (n = 2) and distal esophagus (n = 1) were assessed.
  
  
  RESULTS
  Dyspepsia severity score (P < 0.001), meal stimulated gastrin levels, upper (P = 0.01) and lower (P = 0.06) sphincter pressures were decreased after eradication irrespective of gastric histology; but gastric emptying times (P = 0.87) and pH < 4.5% reflux (P = 0.91) were not changed significantly.
  
  
  CONCLUSIONS
  H. pylori eradication results in decreased esophageal sphincter pressures irrespective of gastric histology in functional dyspepsia patients. These decreases are not associated with increased objective reflux or reflux symptomatology. The clinical significance of these finding deserves further evaluations.
authors.affiliation: Department of Gastroenterohepatology, Istanbul Medical Faculty, Capa, 34 390 Istanbul, Turkey. besisiksef@yahoo.com
authors.forename: F
authors.initials: F
authors.lastname: Besisik
authors.forename: F
authors.initials: F
authors.lastname: Sürücü
authors.forename: Z
authors.initials: Z
authors.lastname: Mungan
authors.forename: D
authors.initials: D
authors.lastname: Dinçer
authors.forename: Y
authors.initials: Y
authors.lastname: Kapran
authors.forename: S
authors.initials: S
authors.lastname: Kaymakoglu
authors.forename: U
authors.initials: U
authors.lastname: Cevikbas
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004415:Dyspepsia / Q000382:microbiology* / Q000503:physiopathology*; D004947:Esophagus / Q000503:physiopathology*; D005260:Female; D005746:Gastric Emptying; D005756:Gastritis / Q000382:microbiology* / Q000503:physiopathology*; D016481:Helicobacter Infections / Q000188:drug therapy*; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure; D054328:Proton Pump Inhibitors
chemical_list: D054328:Proton Pump Inhibitors