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Revision as of 16:08, 13 January 2021

Chronic diarrhea Microchapters

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Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Chronic diarrhea from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

CT

MRI

Ultrasound

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Omodamola Aje B.Sc, M.D. [2]

Overview

Chronic diarrhea may be classified into 3 basic categories: watery, fatty (malabsorption), and inflammatory (with blood and pus). It is important to note that not all chronic diarrhea falls into one category alone. Classifying a patient's chronic diarrhea into a subcategory helps to direct the diagnostic work-up.

Classification

Chronic diarrhea may be classified into:[1][2][3][4]

Inflammatory diarrhea

Diarrhea may be classified as inflammatory, when stool analysis tools, such as stool cultures and interventions, such as flexible sigmoidoscopy or colonoscopy with biopsies show evidence of the presence of fecal leukocytes. Causes of inflammatory diarrhea include:

Watery diarrhea

Watery diarrhea can be classified as:

A normal gap is between 50 and 100 mosm/kg.[6]

Fatty diarrhea

Fatty diarrhea can be either due to malabsorption or maldigestion problems:

References

  1. Fine, K; Schiller, L (1999). "AGA Technical Review on the Evaluation and Management of Chronic Diarrhea☆". Gastroenterology. 116 (6): 1464–1486. doi:10.1016/S0016-5085(99)70513-5. ISSN 0016-5085.
  2. "American Gastroenterological Association medical position statement: Guidelines for the evaluation and management of chronic diarrhea☆, ☆☆". Gastroenterology. 116 (6): 1461–1463. 1999. doi:10.1016/S0016-5085(99)70512-3. ISSN 0016-5085.
  3. Camilleri M (2004). "Chronic diarrhea: a review on pathophysiology and management for the clinical gastroenterologist". Clin Gastroenterol Hepatol. 2 (3): 198–206. PMID 15017602.
  4. Fine KD, Seidel RH, Do K (2000). "The prevalence, anatomic distribution, and diagnosis of colonic causes of chronic diarrhea". Gastrointest Endosc. 51 (3): 318–26. PMID 10699778.
  5. Oster JR, Materson BJ, Rogers AI (1980). "Laxative abuse syndrome". Am J Gastroenterol. 74 (5): 451–8. PMID 7234824.
  6. Shiau, Yih-Fu (1985). "Stool Electrolyte and Osmolality Measurements in the Evaluation of Diarrheal Disorders". Annals of Internal Medicine. 102 (6): 773. doi:10.7326/0003-4819-102-6-773. ISSN 0003-4819.


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