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Inflammatory bowel disease (IBD) encompasses two major chronic disorders—ulcerative colitis and Crohn’s disease—each characterized by relapsing episodes of gastrointestinal inflammation. Although they share certain clinical features, their patterns of involvement and manifestations differ in ways that aid diagnosis and guide management.Ulcerative ColitisUlcerative colitis is limited to the colon and rectum and involves continuous inflammation of the mucosal layer. The...
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Investigating Intestinal Inflammation in DSS-induced Model of IBD
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[Bloody diarrhoea - causes, diagnostics and therapy].

Henriette Heinrich1, Stephan R Vavricka1

  • 1Abteilung für Gastroenterologie und Hepatologie, Stadtspital Triemli, Zürich.

Therapeutische Umschau. Revue Therapeutique
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Summary

Bloody diarrhea is a serious symptom requiring prompt evaluation of causes, including infections and colitis. This review covers common etiologies and diagnostic methods for bloody diarrhea, especially in immunocompromised individuals.

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Area of Science:

  • Gastroenterology
  • Infectious Diseases
  • Internal Medicine

Context:

  • Bloody diarrhea necessitates a comprehensive medical history, including symptom duration, associated symptoms, medications (e.g., antibiotics, NSAIDs), and underlying conditions (e.g., HIV, Inflammatory Bowel Disease, transplant recipients).
  • Understanding the diverse etiologies of bloody diarrhea is crucial for effective patient management.

Purpose:

  • To review the most common bacterial, viral, and parasitic causes of bloody diarrhea.
  • To discuss radiation-induced and ischemic colitis as causes of bloody diarrhea.
  • To present key diagnostic tools for identifying infectious and ischemic causes of bloody diarrhea.

Summary:

  • This review details common infectious agents (bacterial, viral, parasitic) and non-infectious causes like radiation and ischemic colitis leading to bloody diarrhea.
  • Diagnostic approaches including stool cultures, fecal calprotectin, CT scans, and endoscopy are presented.
  • Specific considerations for bloody diarrhea in immunocompromised patients and those with Inflammatory Bowel Disease (IBD) are addressed.

Impact:

  • Provides a comprehensive overview of bloody diarrhea causes and diagnostics for healthcare professionals.
  • Aids in the timely and accurate diagnosis of bloody diarrhea, leading to appropriate treatment.
  • Highlights the importance of considering specific patient populations, such as immunocompromised individuals and IBD patients, in the diagnostic workup.