作者: Carolyn Quan , Nicholas J. Talley
DOI: 10.1111/J.1572-0241.2002.07068.X
关键词: Peptic 、 Etiology 、 Pathogenesis 、 Maintenance therapy 、 Internal medicine 、 Medicine 、 Helicobacter pylori 、 Gastric emptying 、 Gastroenterology 、 Genetic predisposition 、 Disease
摘要: Helicobacter pylori (H. pylori) infection is widely accepted as the most important factor in pathogenesis of duodenal ulcer. However, parallel with more effective eradication H. pylori, prevalence changing, and pylori-negative peptic ulcer disease appears to be increasing. When making a diagnosis disease, it essential avoid misclassification because inaccurate diagnosis. In addition, secondary causes may need excluded appropriate investigations. absence nonsteroidal anti-inflammatory drug usage common cause ulcer; surreptitious unexplained up 60% patients. Hypersecretory syndromes such Zollinger-Ellison syndrome, although rare, excluded. Once all known etiological factors are excluded, there remains group patients so-called "idiopathic ulcers." The interplay idiopathic poorly defined but include genetic predisposition, altered acid secretion, rapid gastric emptying, defective mucosal defense mechanisms, psychological stress, smoking. management ulcers not defined; they appear resistant standard therapy, can associated frequent complications, those that relapse require long-term maintenance therapy.