Diverticulitis and Irritable Bowel Syndrome — Incidence and Predictive Factor of Irritable Bowel Syndrome After Acute Diverticulitis in Korea
Citation(s)
Ballou SK, Keefer L Multicultural considerations in the diagnosis and management of irritable bowel syndrome: a selective summary. Eur J Gastroenterol Hepatol. 2013 Oct;25(10):1127-33. doi: 10.1097/MEG.0b013e3283632bf2. Review.
Hammond NA, Nikolaidis P, Miller FH Left lower-quadrant pain: guidelines from the American College of Radiology appropriateness criteria. Am Fam Physician. 2010 Oct 1;82(7):766-70. Review.
Jung IS, Kim HS, Park H, Lee SI The clinical course of postinfectious irritable bowel syndrome: a five-year follow-up study. J Clin Gastroenterol. 2009 Jul;43(6):534-40. doi: 10.1097/MCG.0b013e31818c87d7.
Lovell RM, Ford AC Global prevalence of and risk factors for irritable bowel syndrome: a meta-analysis. Clin Gastroenterol Hepatol. 2012 Jul;10(7):712-721.e4. doi: 10.1016/j.cgh.2012.02.029. Epub 2012 Mar 15.
Ohman L, Simrén M New insights into the pathogenesis and pathophysiology of irritable bowel syndrome. Dig Liver Dis. 2007 Mar;39(3):201-15. Epub 2007 Jan 30. Review.
Spiller R, Garsed K Postinfectious irritable bowel syndrome. Gastroenterology. 2009 May;136(6):1979-88. doi: 10.1053/j.gastro.2009.02.074. Epub 2009 May 7. Review.
Spiller R Is it diverticular disease or is it irritable bowel syndrome? Dig Dis. 2012;30(1):64-9. doi: 10.1159/000335721. Epub 2012 May 3. Review.
Strate LL, Modi R, Cohen E, Spiegel BM Diverticular disease as a chronic illness: evolving epidemiologic and clinical insights. Am J Gastroenterol. 2012 Oct;107(10):1486-93. doi: 10.1038/ajg.2012.194. Epub 2012 Jul 10. Review.
Thabane M, Kottachchi DT, Marshall JK Systematic review and meta-analysis: The incidence and prognosis of post-infectious irritable bowel syndrome. Aliment Pharmacol Ther. 2007 Aug 15;26(4):535-44. Review.
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
