Peptic Ulcer (cont.)
Bhupinder Anand, MD
In this Article
What is a peptic ulcer?
A peptic ulcer is a break in the inner lining of the esophagus, stomach, or duodenum. A peptic ulcer of the stomach is called a gastric ulcer; of the duodenum, a duodenal ulcer; and of the esophagus, an esophageal ulcer. Peptic ulcers occur when the lining of these organs is corroded by the acidic digestive (peptic) juices which are secreted by the cells of the stomach. A peptic ulcer differs from an erosion because it extends deeper into the lining of the esophagus, stomach, or duodenum and excites more of an inflammatory reaction from the tissues that are eroded.
Peptic ulcer disease is common, affecting millions of Americans yearly. Moreover, peptic ulcers are a recurrent problem; even healed ulcers can recur unless treatment is directed at preventing their recurrence. The medical cost of treating peptic ulcer and its complications runs into billions of dollars annually. Recent medical advances have increased our understanding of ulcer formation. Improved and expanded treatment options now are available.
What are the causes of peptic ulcers?
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For many years, excess acid was believed to be the major cause of ulcer disease. Accordingly, the emphasis of treatment was on neutralizing and inhibiting the secretion of stomach acid. While acid is still considered necessary for the formation of ulcers, the two most important initiating causes of ulcers are infection of the stomach by a bacterium called "Helicobacter pyloricus" (H. pylori) and chronic use of anti-inflammatory medications, commonly referred to as NSAIDs (nonsteroidal anti-inflammatory drugs), including aspirin. Cigarette smoking also is an important cause of ulcer formation as well as failure of ulcer treatment.
Infection with H. pylori is very common, affecting more than a billion people worldwide. It is estimated that half of the United States population older than age 60 has been infected with H. pylori. Infection usually persists for many years, leading to ulcer disease in 10% to 15% of those infected. In the past, H. pylori was found in more than 80% of patients with gastric and duodenal ulcers. With increasing appreciation, diagnosis and treatment of this infection, however, the prevalence of infection with H. pylori as well as the proportion of ulcers caused by the bacterium has decreased; it is estimated that currently only 20% of ulcers are associated with the bacterium. While the mechanism by which H. pylori causes ulcers is complex, elimination of the bacterium by antibiotics has clearly been shown to heal ulcers and prevent the recurrence of ulcers.
NSAIDs are medications used for the treatment of arthritis and other painful inflammatory conditions in the body. Aspirin, ibuprofen (Motrin), naproxen (Naprosyn), and etodolac (Lodine) are a few of the examples of this class of medications. Prostaglandins are substances which are important in helping the linings of the esophagus, stomach, and duodenum to resist damage by the acidic digestive juices of the stomach. NSAIDs cause ulcers by interfering with prostaglandins in the stomach.
Cigarette smoking not only causes ulcers, but it also increases the risk of complications from the ulcers such as ulcer bleeding, stomach obstruction, and perforation. Cigarette smoking also is a leading cause of failure of treatment for ulcers.
Contrary to popular belief, alcohol, coffee, colas, spicy foods, and caffeine have no proven role in ulcer formation. Similarly, there is no conclusive evidence to suggest that life stresses or personality types contribute to ulcer disease.
Medically Reviewed by a Doctor on 5/16/2012
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