antimicrobials and risks for antibiotic-associated diarrhea (aad) antibiotic-associated diarrhea...
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Antimicrobials and risks for antibiotic-associated diarrhea (AAD)
•Antibiotic-associated diarrhea
•5-30% risk
•Higher with multiple IV drugs
•Higher with broad spectrum antimicrobials
•Higher with pediatric patients
•High with oral beta lactams
•Clostridium difficile may be involved
•Big reason for lack of compliance with therapy
•Big reason for need to switch and to increase patient exposure to antimicrobials
•Probiotics use can help prevent
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Stop Antibiotic
Start Antibiotic
Start Yeast (within 48h)
Stop Study
Yeast continued for 14d
Saccharomyces boulardii and Antibiotic Associated Diarrhea in Hospitalized PatientsN=180; site: University of Washington, Harborview Hospital
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Surawicz et al., Gastroenterol. 1989;96:981
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AAD D’Souza et al., BMJ 2002;324:1361
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Clostridium difficile disease (pseudomembranous colitis)(CDD)
is a spore former anaerobe resistant to most antimicrobials
•is held in check by the normal flora but can overgrow if flora is perturbed
•any antimicrobial can initiate overgrowth; stomach acid suppression therapy can increase risk
•C. difficle makes two toxins which cause diarrhea to colitis to pseudomembranous colitis to toxic megacolon to death
•Can be treated with metronidazole (250mg QID) or vancomycin PO (125mg QID or 500mg QID) but relapse rate is ~20%
•Patients who relapse can have recalcitrant disease with ~50% relapse rate
•Probiotics can decrease rate of relapse but only Sacccharomyces boulardii has been tested and shown to help
•
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McFarland et al., JAMA; 271, 1913-1918, (1994).
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S. boulardiiS. boulardii & High Dose & High Dose Vancomycin for Vancomycin for C. difficileC. difficile Disease Disease
[Results][Results]
0
10
20
30
40
50
60
% CDD recurrences
50%
16.7%*
Surawicz CM. Clin Infect Dis 2000;31:1012-7.
S. boulardii (n=18)
Placebo(n=14)
*p=0.05
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Copyright restrictions may apply.
Dial, S. et al. JAMA 2005;294:2989-2995.
Rates of Clostridium difficile per 100 000 Patients in the United Kingdom General Practice Research Database
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Lactobacillus rhamnosus GG Dietary Supplement: Culturelle
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Saccharomyces boulardii Dietary Supplement: Florastor
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