Peer-Reviewed Journal Details
Mandatory Fields
O'Connor, D, Hynes P, Cormican M, Collins E, Corbett-Feeney G and Cassidy M.
2001
January
Journal Of Clinical Microbiology
An evaluation of methods for toxin detection in specimens of faeces submitted for diagnosis of Clostridium difficile-associated diarrhoea.
Published
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Optional Fields
MULTICENTER EVALUATION CYTOTOXICITY ASSAY A/B TEST CULTURE COLITIS INFECTION STOOLS STRAIN
39
8
2846
2849
Clostridium difficile is the principal pathogen associated with hospital-acquired acute diarrheal disease. We have evaluated the performances of six approaches for diagnosis of C. difficile-associated diarrhea (CDAD). Consecutive stool specimens (n = 200) from 133 patients were examined by cytotoxin assay, by culture of C. difficile on cycloserine-cefoxitin-fructose agar, and by toxin detection using four rapid immunoassay systems (Oxoid Toxin A test, ImmunoCard Toxin A test, TechLab Tox A/B II test, and Premier Toxins A&B test). A diagnosis of CDAD was established for 35 (27%) patients (representing 29% of specimens). The adjusted sensitivity and specificity of the methods were, respectively, 98 and 99% for the cytotoxin assay, 54 and 99% for ImmunoCard, 50 and 98% for Oxoid, 79 and 98% for TechLab, 80 and 98% for Premier, and 57 and 100% for culture. The TechLab and Premier assays are acceptable tests for diagnosis of CDAD but are not equivalent to the cytotoxin assay.
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