Functional Dyspepsia (FD)
Functional indigestion (previously called nonulcer dyspepsia)is indigestion "without evidence of an organic disease that is likely to explain the symptoms". Functional indigestion is estimated to affect about 15% of the general population in western countries. In most cases, the clinical history is of limited use in distinguishing between organic causes and functional dyspepsia. A large systematic review of the literature was recently performed to evaluate the effectiveness of diagnosing organic dyspepsia by clinical opinion versus computer models in patients referred for upper endoscopy. The computer models were based on patient demographics, risk factors, historical items,and symptoms.