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Small intestinal bacterial overgrowth: roles of antibiotics, prebiotics, and probiotics

Eamonn M M Quigley1, Rodrigo Quera

  • 1Alimentary Pharmabiotic Centre, Department of Medicine, National University of Ireland, Cork, Ireland. e.quigley@ucc.ie

Gastroenterology
|February 14, 2006
PubMed

Insights

Small intestinal bacterial overgrowth (SIBO) is common in intestinal failure, potentially causing sepsis. While probiotics show promise in animal models, their effectiveness in humans with SIBO requires further evaluation.

Area of Science:

  • Gastroenterology
  • Microbiology
  • Clinical Nutrition

Background:

  • Small intestinal bacterial overgrowth (SIBO) is prevalent in patients with intestinal failure.
  • SIBO is linked to anatomical, motility, and secretory changes in the gut.
  • It can exacerbate symptoms, mucosal damage, and malnutrition in intestinal failure.

Purpose of the Study:

  • To review the challenges in diagnosing SIBO in intestinal failure.
  • To discuss current management strategies for SIBO in this patient population.
  • To explore the potential role of probiotics in managing SIBO and intestinal failure.

Main Methods:

  • Literature review focusing on SIBO in intestinal failure.
  • Analysis of diagnostic challenges and current therapeutic approaches.
  • Evaluation of experimental evidence for probiotic efficacy.

Main Results:

  • SIBO diagnosis in intestinal failure presents significant clinical challenges.
  • Current management relies on empirical antibiotic therapy and nutritional support.
  • Animal studies suggest probiotics may offer benefits, but human data is lacking.

Conclusions:

  • Accurate diagnosis and effective management of SIBO in intestinal failure remain critical unmet needs.
  • Probiotics demonstrate potential therapeutic benefits based on preclinical data.
  • Further clinical trials are essential to validate the role of probiotics in human SIBO and intestinal failure.

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