Acute Gastrointestinal Bleeding

I. Epidemiology.- 1 Epidemiology of Acute Gastrointestinal Bleeding.- II. Upper Gastrointestinal Bleeding.- 2 Nonvariceal Esophageal Bleeding.- 3 Helicobacter pylori and Peptic Ulcer Disease.- 4 Medical Therapy for Stress Ulcer Prophylaxis: When and With What?.- 5 Nonsteroidal Antiinflammatory Drug (NSAID)-Induced Gastropathy.- 6 Portal Hypertensive Acute Gastrointestinal Bleeding.- 7 Obscure Causes of Upper Gastrointestinal Bleeding.- 8 Surgical Approach to Acute Upper Gastrointestinal Bleeding.- III. Lower Gastrointestinal Bleeding.- 9 Infectious and Inflammatory Causes of Acute Gastrointestinal Bleeding.- 10 Acute Bleeding from Diverticulosis and lschemic Colitis.- 11 Radiation Proctopathy and Anorectal Diseases.- 12 Obscure Causes of Acute Lower Gastrointestinal Bleeding.- 13 Surgical Approach to Acute Lower Gastrointestinal Bleeding.- 14 Radiologic Evaluation and Intervention in the Acute Gastrointestinal Bleed.