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Braegger

Fakultäten » Medizinische Fakultät » Kinderspital Zürich: Medizinische Klinik » Gastroenterologie und Ernährung, Abteilung » Prof. Dr. Christian Braegger » Braegger

Completed research project

Title / Titel Prebiotics in the Prevention of Antibiotic-Associated Diarrhea (AAD) in Children: A European Multi-Center Randomized Double-Blind Placebo Controlled Trial
PDF Abstract (PDF, 14 KB)
Summary / Zusammenfassung A common side effect of antibiotic treatment is antibiotic-associated diarrhea (AAD) defined as otherwise unexplained diarrhea that occurs in association with the administration of antibiotics. In the pediatric population, AAD occurs in approximately 11-40% of children between the initiation of therapy and up to 2 months after cessation of treatment. Although no infectious agent is found in most cases, the bacterial agent commonly associated with AAD, particularly in the most severe episodes (pseudomembranous colitis), is Clostridium difficile. Almost all antibiotics, particularly those active against anaerobes, can cause diarrhea, but the risk seems to be higher with aminopenicillins, the combination of aminopenicillins and clavulanate, cephalosporins, and clindamycin.
Preventive measures include the use of probiotics, which are live microbial food ingredients that are beneficial to health. The rationale for the use of probiotics in AAD is based on the assumption that the use of antibiotics leads to a disturbance in the normal intestinal microflora and that this is a key factor in the pathogenesis of AAD. Indeed, at least 4 systematic reviews (with or without meta-analysis) have shown that some probiotic strains are effective in preventing AAD. In children, recent meta-analysis showed that probiotics reduce the risk of AAD in children. For every 7 patients that would develop diarrhea while being treated with antibiotics, one fewer will develop AAD if also receiving probiotics.
Modification of the intestinal microbiota can be also achieved by the use of prebiotics, which are non-digestible food components that beneficially affect the host by selectively stimulating the growth and/or activity of one or a limited number of bacteria in the colon, and thereby improve host health. At present, it is unclear whether prebiotics are effective in the prevention of AAD as only a limited number of studies is available.

The study has been organiszed by the ESPGHAN Working Group on Probiotics and Prebiotics. Study coordinators are:
Prof. Hania Szajewska, Warsaw, Poland
Prof. Zvi Weizman, Beer-Sheva, Israel
Keywords / Suchbegriffe Antibiotic-associated diarrhea (AAD), prebiotics, fructo-oligosaccharides (FOS), intestinal microbiota
Project leadership and contacts /
Projektleitung und Kontakte
Prof Christian Braegger, MD (Project Leader) christian.braegger@kispi.uzh.ch
Dr Michael Friedt, MD michael.friedt@kispi.uzh.ch
Dr Patrick Buehr, MD patrick.buehr@kispi.uzh.ch
Funding source(s) /
Unterstützt durch
No project-specific funding
 
In collaboration with /
In Zusammenarbeit mit
Hania Szajewska, MD
Professor of Paediatrics
The Medical University of Warsaw
2nd Department of Paediatrics
Dzialdowska 1
01-184 Warsaw
Poland

Zvi Weizman, MD
Professor and Head, Pediatric Gastroenterology and Nutrition Unit, Soroka Medical Center
Faculty of Health Sciences, Ben-Gurion University
Beer-Sheva 84101

Israel

Duration of Project / Projektdauer Aug 2008 to Sep 2010