Medical management of acid-peptic disorders of the stomach.

In the past 30 years, medicine has witnessed an unprecedented evolution in acid-peptic disorder management, fueled by major advances in our understanding of the physiology of acid secretion and the gastric mucosal barrier. The other pivotal development in understanding these disorders has been the recognition of Helicobacter pylori's role in the pathophysiology of peptic ulcer disease,chronic gastritis, and even gastric malignancy. This evolution continues as H pylori wanes in significance, and medicine is challenged by treating iatrogenic conditions brought on by ulcerogenic anti-inflammatory drugs. Following a description of the relevant physiology and biochemistry of gastric acid secretion and the gastric mucosal barrier, this article describes the current medicinal arsenal available to treat acid-peptic disorders of the stomach.

Risk of early surgery for Crohn's disease: implications for early treatment strategies.

OBJECTIVES: In this study we aimed to define the rate of early surgery for Crohn's disease and to identify risk factors associated with early surgery as a basis for subsequent studies of early intervention in Crohn's disease. METHODS: We assembled a retrospective cohort of patients with Crohn's disease diagnosed between 1991 and 1997 and followed for at least 3 yr, who were identified in 16 community and referral-based practices in New England. Chart review was performed for each patient. Details of baseline demographic and disease features were recorded. Surgical history including date of surgery, indication, and procedure were also noted. Risk factors for early surgery (defined as major surgery for Crohn's disease within 3 yr of diagnosis, exclusive of major surgery at time of diagnosis) were identified by univariate analysis. Multiple logistic regression was used to identify independent risk factors. RESULTS: Of 345 eligible patients, 69 (20.1%) required surgery within 3 yr of diagnosis, excluding the 14 patients (4.1%) who had major surgery at the time of diagnosis. Overall, the interval between diagnosis and surgery was short; one half of all patients who required surgery underwent operation within 6 months of diagnosis. Risk factors identified by univariate analysis as significantly associated with early surgery included the following: smoking; disease of small bowel without colonic involvement; nausea and vomiting or abdominal pain on presentation; neutrophil count; and steroid use in the first 6 months. Disease localized to the colon only, blood in the stool, use of 5-aminosalicylate, and lymphocyte count were inversely associated with risk of early surgery. Logistic regression confirmed independent associations with smoking as a positive risk factor and involvement of colon without small bowel as a negative risk factor for early surgery. CONCLUSIONS: The rate of surgery is high in the first 3 yr after diagnosis of Crohn's disease, particularly in the first 6 months. These results suggest that improved risk stratification and potent therapies with rapid onset of action are needed to modify the natural history of Crohn's disease.