title: Relationship between intragastric acid control and healing status in the treatment of moderate to severe erosive oesophagitis.
abstract: OBJECTIVE
  To assess the relationship between the percentage of time intragastric pH >4.0 and healing of erosive oesophagitis.
  
  
  METHODS
  In this proof-of-concept study, adults with endoscopically verified Los Angeles grade C or grade D erosive oesophagitis were randomly assigned to oral esomeprazole 10 or 40 mg once daily for 4 weeks. On day 5, patients underwent 24-h pH monitoring. At 4 weeks, erosive oesophagitis healing status was endoscopically assessed. Investigators scored gastro-oesophageal reflux disease symptoms on a 4-point scale [none to severe (0-3)] before and 4 weeks after treatment. The percentage of time intragastric pH was >4.0 and healing status were correlated and tested for significance using a Spearman rank correlation (r).
  
  
  RESULTS
  103 patients had evaluable data (mean age, 48.7 years; 65% men). Mean percentages of time with intragastric pH >4.0 on day 5 in patients with healed and unhealed erosive oesophagitis were 61% and 42%, respectively (P = 0.0002), indicating that erosive oesophagitis healing rates were positively related to the percentage of time intragastric pH was >4.0. Greater intragastric acid control correlated with lower final daytime and night-time heartburn and acid regurgitation symptom scores (r = -0.029, -0.029 and -0.021; P = 0.003, 0.003 and 0.032, respectively).
  
  
  CONCLUSIONS
  A positive relationship between intragastric acid control and erosive oesophagitis healing was demonstrated.
authors.affiliation: Albert Einstein Medical Center, Philadelphia, PA 19141, USA. katzp@einstein.edu
authors.forename: P O
authors.initials: PO
authors.lastname: Katz
authors.forename: G G
authors.initials: GG
authors.lastname: Ginsberg
authors.forename: P E
authors.initials: PE
authors.lastname: Hoyle
authors.forename: M B
authors.initials: MB
authors.lastname: Sostek
authors.forename: J T
authors.initials: JT
authors.lastname: Monyak
authors.forename: D G
authors.initials: DG
authors.lastname: Silberg
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D004311:Double-Blind Method; D064098:Esomeprazole / Q000627:therapeutic use*; D004942:Esophagitis, Peptic / Q000188:drug therapy*; D005260:Female; D005744:Gastric Acid / Q000378:metabolism*; D005745:Gastric Acidity Determination; D005764:Gastroesophageal Reflux / Q000188:drug therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D000897:Anti-Ulcer Agents; D064098:Esomeprazole