Abstract
Functional gastrointestinal (GI) disorders are common in the general population. Based on the Rome III classification, these disorders are mutually exclusive disorders keeping the homogeneity of each functional GI disorder in research area. In contrast, many population and clinical studies have reported a considerably high rate of overlap between functional GI disorders. The overlap of functional GI disorders over other intestinal diseases might simply occur by chance due to a highly prevalent disorder. Moreover, functional GI disorders is considered a chronic stable disorder that may wax and wane for several years. However, a recent study about the natural history of functional GI disorders showed substantial transition among functional GI disorders over time. The natural history of functional GI disorders with overlapping other functional GI disorders are still in infancy and better understanding of these will be important in determining the efficacy of future therapeutic interventions.
References
1. Sandler RS. Epidemiology of irritable bowel syndrome in the United States. Gastroenterology. 1990; 99:409–415.
2. Choung RS, Locke GR 3rd, Zinsmeister AR, Schleck CD, Talley NJ. Psychosocial distress and somatic symptoms in community subjects with irritable bowel syndrome: a psychological component is the rule. Am J Gastroenterol. 2009; 104:1772–1779.
3. Talley NJ, Zinsmeister AR, Van Dyke C, Melton LJ 3rd. Epidemiology of colonic symptoms and the irritable bowel syndrome. Gastroenterology. 1991; 101:927–934.
4. Drossman DA, Li Z, Andruzzi E, et al. U.S. householder survey of functional gastrointestinal disorders. Prevalence, sociodemo-graphy, and health impact. Dig Dis Sci. 1993; 38:1569–1580.
5. Choung RS, Locke GR, Schleck CD, Zinsmeister AR, Talley NJ. Do distinct dyspepsia subgroups exist in the community? A population-based study. Am J Gastroenterol. 2007; 102:1983–1989.
6. Talley NJ, Zinsmeister AR, Schleck CD, Melton LJ 3rd. Dyspepsia and dyspepsia subgroups: a population-based study. Gastroenterology. 1992; 102:1259–1268.
7. Agréus L, Svärdsudd K, Talley NJ, Jones MP, Tibblin G. Natural history of gastroesophageal reflux disease and functional abdominal disorders: a population-based study. Am J Gastroenterol. 2001; 96:2905–2914.
8. Kim SE, Chang L. Overlap between functional GI disorders and other functional syndromes: what are the underlying mechanisms? Neurogastroenterol Motil. 2012; 24:895–913.
9. Locke GR 3rd, Zinsmeister AR, Fett SL, Melton LJ 3rd, Talley NJ. Overlap of gastrointestinal symptom complexes in a US community. Neurogastroenterol Motil. 2005; 17:29–34.
10. Park H. Functional gastrointestinal disorders and overlap syndrome in Korea. J Gastroenterol Hepatol. 2011; 26(Suppl 3):12–14.
11. Suzuki H, Hibi T. Overlap syndrome of functional dyspepsia and irritable bowel syndrome – are both diseases mutually exclusive? J Neurogastroenterol Motil. 2011; 17:360–365.
12. Ford AC, Marwaha A, Lim A, Moayyedi P. Systematic review and metaanalysis of the prevalence of irritable bowel syndrome in individuals with dyspepsia. Clin Gastroenterol Hepatol. 2010; 8:401–409.
13. Agréus L, Svärdsudd K, Nyrén O, Tibblin G. Irritable bowel syndrome and dyspepsia in the general population: overlap and lack of stability over time. Gastroenterology. 1995; 109:671–680.
14. Perri F, Clemente R, Festa V, et al. Patterns of symptoms in functional dyspepsia: role of Helicobacter pylori infection and delayed gastric emptying. Am J Gastroenterol. 1998; 93:2082–2088.
15. Stanghellini V, Tosetti C, Paternicò A, et al. Predominant symptoms identify different subgroups in functional dyspepsia. Am J Gastroenterol. 1999; 94:2080–2085.
16. Talley NJ, Dennis EH, Schettler-Duncan VA, Lacy BE, Olden KW, Crowell MD. Overlapping upper and lower gastrointestinal symptoms in irritable bowel syndrome patients with constipation or diarrhea. Am J Gastroenterol. 2003; 98:2454–2459.
17. Tack J, Talley NJ, Camilleri M, et al. Functional gastroduodenal disorders. Gastroenterology. 2006; 130:1466–1479.
18. Choung RS, Chang JY, Locke GR, et al. Is having multiple functional gastrointestinal disorders distinct from having a single FGID? A population based study. Gastroenterology. 2011; 140:S708.
19. Lee SY, Lee KJ, Kim SJ, Cho SW. Prevalence and risk factors for overlaps between gastroesophageal reflux disease, dyspepsia, and irritable bowel syndrome: a population-based study. Digestion. 2009; 79:196–201.
20. Kaji M, Fujiwara Y, Shiba M, et al. Prevalence of overlaps between GERD, FD and IBS and impact on health-related quality of life. J Gastroenterol Hepatol. 2010; 25:1151–1156.
21. Lee HJ, Lee SY, Kim JH, et al. Depressive mood and quality of life in functional gastrointestinal disorders: differences between functional dyspepsia, irritable bowel syndrome and overlap syndrome. Gen Hosp Psychiatry. 2010; 32:499–502.
22. Wang A, Liao X, Xiong L, et al. The clinical overlap between functional dyspepsia and irritable bowel syndrome based on Rome III criteria. BMC Gastroenterol. 2008; 8:43.
23. Choung RS, Locke GR 3rd, Schleck CD, Zinsmeister AR, Talley NJ. Overlap of dyspepsia and gastroesophageal reflux in the general population: one disease or distinct entities? Neurogastroenterol Motil. 2012; 24:229–234.
24. Gasiorowska A, Poh CH, Fass R. Gastroesophageal reflux disease (GERD) and irritable bowel syndrome (IBS)–is it one disease or an overlap of two disorders? Dig Dis Sci. 2009; 54:1829–1834.
25. Nastaskin I, Mehdikhani E, Conklin J, Park S, Pimentel M. Studying the overlap between IBS and GERD: a systematic review of the literature. Dig Dis Sci. 2006; 51:2113–2120.
26. Kennedy TM, Jones RH, Hungin AP, O'flanagan H, Kelly P. Irritable bowel syndrome, gastro-oesophageal reflux, and bronchial hy-per-responsiveness in the general population. Gut. 1998; 43:770–774.
27. Jung HK, Halder S, McNally M, et al. Overlap of gastro-oesophageal reflux disease and irritable bowel syndrome: prevalence and risk factors in the general population. Aliment Pharmacol Ther. 2007; 26:453–461.
28. Cheung TK, Lam KF, Hu WH, et al. Positive association between gastro-oesophageal reflux disease and irritable bowel syndrome in a Chinese population. Aliment Pharmacol Ther. 2007; 25:1099–1104.
30. Smart HL, Nicholson DA, Atkinson M. Gastro-oesophageal reflux in the irritable bowel syndrome. Gut. 1986; 27:1127–1131.
31. Costantini M, Sturniolo GC, Zaninotto G, et al. Altered esophageal pain threshold in irritable bowel syndrome. Dig Dis Sci. 1993; 38:206–212.
32. Rubenstein JH, Nojkov B, Korsnes S, et al. Oesophageal hypersensitivity is associated with features of psychiatric disorders and the irritable bowel syndrome. Aliment Pharmacol Ther. 2007; 26:443–452.
33. Trimble KC, Farouk R, Pryde A, Douglas S, Heading RC. Heightened visceral sensation in functional gastrointestinal disease is not site-specific. Evidence for a generalized disorder of gut sensitivity. Dig Dis Sci. 1995; 40:1607–1613.
34. Fass R. Persistent heartburn in a patient on proton-pump inhibitor. Clin Gastroenterol Hepatol. 2008; 6:393–400.
35. Bolling-Sternevald E, Aro P, Ronkainen J, et al. Do gastrointestinal symptoms fluctuate in the short-term perspective? The Kalixanda study. Dig Dis. 2008; 26:256–263.
36. Halder SL, Locke GR 3rd, Schleck CD, Zinsmeister AR, Melton LJ 3rd, Talley NJ. Natural history of functional gastrointestinal disorders: a 12-year longitudinal population-based study. Gastroenterology. 2007; 133:799–807.
37. Bernersen B, Johnsen R, Straume B, Burhol PG, Jenssen TG, Stakkevold PA. Towards a true prevalence of peptic ulcer: the Sørreisa gastrointestinal disorder study. Gut. 1990; 31:989–992.