Irritable bowel syndrome classification: Difference between revisions
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* [[Irritable bowel syndrome|IBS]] unclassified: Patients who meet the diagnostic criteria for [[Irritable bowel syndrome|IBS]] but whose bowel habits do not fit into any of the above subtypes. | * [[Irritable bowel syndrome|IBS]] unclassified: Patients who meet the diagnostic criteria for [[Irritable bowel syndrome|IBS]] but whose bowel habits do not fit into any of the above subtypes. | ||
[[Irritable bowel syndrome|IBS]]-PI or post infectious IBS. It is an additional | [[Irritable bowel syndrome|IBS]]-PI or post infectious IBS. It is an additional sub type described that is acute in onset and occurs subsequent to an infectious illness of the GI tract. It is characterized by two or more of the following: vomiting, fever, positive stool culture or diarrhea. | ||
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!SUBTYPE | !SUBTYPE | ||
Revision as of 20:44, 26 October 2017
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Irritable bowel syndrome Microchapters |
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Differentiating Irritable bowel syndrome from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Irritable bowel syndrome classification On the Web |
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American Roentgen Ray Society Images of Irritable bowel syndrome classification |
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Risk calculators and risk factors for Irritable bowel syndrome classification |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:
Overview
- Irritable bowel syndrome (IBS) may be classified according to Rome IV criteria into four subtypes/groups: IBS with predominant constipation , IBS with predominant diarrhea, IBS with mixed bowel habits,and IBS unclassified. In addition, IBS occuring subsequent to GI infections is known as PI-IBS or post infectious IBS.[1]
- The rationale behind these different sub types is to maintain consistency of patient selection. This increases understanding of pathophysiological mechanisms, aids in effective diagnosis, treatment and patient recruitment for clinical trials.
Classification
Irritable bowel syndrome (IBS) may be classified according to Rome IV criteria into 4 subtypes based on predominant stool type:[2][3]
- IBS with predominant constipation
- IBS with predominant diarrhea
- IBS with mixed bowel habits: alternating patterns of stool passage which is not in conjuncture with the normal bowel movements.
- IBS unclassified: Patients who meet the diagnostic criteria for IBS but whose bowel habits do not fit into any of the above subtypes.
IBS-PI or post infectious IBS. It is an additional sub type described that is acute in onset and occurs subsequent to an infectious illness of the GI tract. It is characterized by two or more of the following: vomiting, fever, positive stool culture or diarrhea.
| SUBTYPE | HARD OR LUMPY STOOLS | LOOSE(MUSHY) OR WATERY STOOLS |
|---|---|---|
| IBS with constipation | ≥ 25 percent | ≤ 25 percent |
| IBS with diarrhea | ≤ 25 percent | ≥ 25 percent |
| Mixed IBS | ≥ 25 percent | ≥ 25 percent |
| Unsubtyped IBS | Insufficient abnormality of stool consistency to meet criteria for IBS with constipation, diarrhea, or mixed subtypes. | |
References
- ↑ Longstreth GF (2005). "Definition and classification of irritable bowel syndrome: current consensus and controversies". Gastroenterol. Clin. North Am. 34 (2): 173–87. doi:10.1016/j.gtc.2005.02.011. PMID 15862928.
- ↑ Sayuk GS, Gyawali CP (2015). "Irritable bowel syndrome: modern concepts and management options". Am. J. Med. 128 (8): 817–27. doi:10.1016/j.amjmed.2015.01.036. PMID 25731138.
- ↑ Lacy BE (2016). "Diagnosis and treatment of diarrhea-predominant irritable bowel syndrome". Int J Gen Med. 9: 7–17. doi:10.2147/IJGM.S93698. PMC 4755466. PMID 26929659.