Clinical and laboratory characteristics of Clostridium difficile infection in patients with discordant diagnostic test results Journal Article


Authors: Kaltsas, A.; Simon, M.; Unruh, L. H.; Son, C.; Wroblewski, D.; Musser, K. A.; Sepkowitz, K.; Babady, N. E.; Kamboj, M.
Article Title: Clinical and laboratory characteristics of Clostridium difficile infection in patients with discordant diagnostic test results
Abstract: The aim of this study was to compare the clinical and laboratory characteristics of Clostridium difficile infection (CDI) in patients with discordant test results for the cytotoxin assay (CYT) and PCR assays. A retrospective study from May to August 2008 and March to May 2010 was performed. CDI was diagnosed in 128 patients. PCR increased the yield of C. difficile cases by 2-fold compared to that of the CYT assay. Fifty-six cases (44%) were detected by PCR only (CYT negative). Forty-nine percent of patients with non-NAP1 strains were detected by PCR only, compared to 28% of those infected with NAP1 strains (P < 0.05). No significant differences were found in the clinical severity of illness and outcome among patients that tested positive for CDI by both tests (CYT and PCR) compared to those that tested positive by PCR only. Copyright © 2012, American Society for Microbiology. All Rights Reserved.
Keywords: adolescent; adult; child; controlled study; aged; aged, 80 and over; child, preschool; middle aged; young adult; major clinical study; diarrhea; antineoplastic agent; sensitivity and specificity; polymerase chain reaction; disease association; clinical assessment; incidence; cohort analysis; hematopoietic stem cell transplantation; retrospective study; bacterial strain; abdominal pain; fever; length of stay; hospitalization; bacterial proteins; disease severity; laboratory test; nausea and vomiting; recurrent disease; sepsis; intermethod comparison; colitis; clostridium difficile infection; symptomatology; leukocyte count; clostridium difficile; false negative reactions; leukocytosis; feces; cross infection; molecular diagnostic techniques; cytotoxin; clostridium infections; septic shock; bacterial toxins; cytotoxin assay
Journal Title: Journal of Clinical Microbiology
Volume: 50
Issue: 4
ISSN: 0095-1137
Publisher: American Society for Microbiology  
Date Published: 2012-04-01
Start Page: 1303
End Page: 1307
Language: English
DOI: 10.1128/jcm.05711-11
PROVIDER: scopus
PUBMED: 22238444
PMCID: PMC3318505
DOI/URL:
Notes: --- - "Export Date: 2 April 2012" - "CODEN: JCMID" - "Source: Scopus"
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MSK Authors
  1. Ngolela Esther Babady
    171 Babady
  2. Kent A Sepkowitz
    272 Sepkowitz
  3. Mini Kamboj
    158 Kamboj
  4. Anna Kaltsas
    24 Kaltsas
  5. Crystal Son
    12 Son