Helicobacter pyloriand Nonulcer Dyspepsia

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Abstract
Dyspepsia encompasses a variety of upper abdominal symptoms — pain and discomfort, bloating, fullness, early satiety, nausea, anorexia, heartburn, regurgitation, and belching — that are experienced regularly by 25 to 40 percent of the population of the Western world.13 A working definition of dyspepsia is chronic or recurrent pain or discomfort centered in the upper abdomen.3 Remarkably, 2 to 5 percent of visits to primary care physicians in the United States are for dyspepsia, and each year, over $1.3 billion is spent on prescription drugs to treat the condition.1 The differential diagnosis of dyspepsia usually focuses on diseases of . . .