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Korean J Intern Med. 2014 Mar;29(2):156-65. doi: 10.3904/kjim.2014.29.2.156. Epub 2014 Feb 27.

Current status of functional dyspepsia in Korea.

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Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.
Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea.
Department of Internal Medicine, Konyang University College of Medicine, Daejeon, Korea.


Dyspepsia refers to group of commonly occurring upper gastrointestinal symptoms. The majority of patients with dyspepsia suffer from functional (nonulcer) dyspepsia. Although there is a lack of epidemiological data from population-based or patient cohort studies in Korea, the current understanding of this condition has been updated using data from various recent research studies, which have facilitated the development of clinical guidelines for functional dyspepsia. According to a survey using the Rome III criteria, more than 40% of respondents who visited primary clinics and tertiary hospitals were defined as having functional dyspepsia, most of who were within a subgroup of patients with postprandial distress syndrome. In addition, a population-based cross-sectional survey revealed considerable overlap between functional dyspepsia and other functional gastrointestinal disorders, including gastroesophageal reflux disease (especially nonerosive reflux disease) and irritable bowel syndrome. In contrast to the results of Western trials, there is insufficient evidence to recommend a Helicobacter pylori test-and-treat strategy as an initial management approach to functional dyspepsia in Korea, suggesting the need for early endoscopic evaluation. Additional studies are necessary to adjust the cutoff age for implementation of immediate endoscopic evaluation of patients without alarm symptoms. Considering the prevalence of H. pylori infection and the limited efficacy of symptomatic relief after its eradication, further well-qualified studies in Korea are warranted.


Epidemiology; Functional dyspepsia; Helicobacter pylori

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