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New IDSA/SHEA Guidelines Highlight Critical Role of PCR Testing in C. difficile Diagnosis

Cepheid
Posted on: 20 Feb 18
New IDSA/SHEA Guidelines Highlight Critical Role of PCR Testing in C. difficile Diagnosis Updated guidelines reaffirm PCR as highly sensitive method for detecting deadly toxigenic C. difficile

PR Newswire

SUNNYVALE, Calif., Feb. 20, 2018

SUNNYVALE, Calif., Feb. 20, 2018 /PRNewswire/ -- Newly released IDSA/SHEA Clinical Practice Guidelines for C. difficile, a major cause of gastrointestinal infection, once again emphasize the need for rapid diagnosis of Clostridium difficile infection (CDI) and the critical role of polymerase chain reaction (PCR) testing methods. 

As a partner in reducing rates of C. difficile infection (CDI) worldwide, Cepheid is committed to advancing the use of best practices for detecting and managing CDI, including use of appropriate testing criteria and methodology. To further highlight the discussion surrounding appropriate C. difficile diagnosis and infection prevention, Cepheid recently launched the website www.knowyourpoo.com.

"As the guidelines emphasize, clinical patient evaluation is critical to appropriately diagnosing CDI," said Dr. Niaz Banaei, Director of Clinical Microbiology at Stanford Medical Center. "To reduce over-testing at Stanford, we now require these clinical evaluations be performed upfront before samples are accepted for testing. Once we know that a patient has signs and symptoms consistent with CDI, we want to test them with the most sensitive test available. This approach has improved the overall accuracy of our diagnoses, significantly reduced our CDI rates, and is consistent with the new guidelines."

While the new guidelines mention several approaches for diagnosing CDI, including those that utilize multi-test algorithms, PCR remains the most sensitive method for detecting toxigenic C. difficile, which is critical for both accurate diagnosis and infection prevention activities in hospitals.

"Published studies1 from both Europe and the United States show that antibody-based testing methods, like those used in many algorithmic approaches, are less sensitive than PCR methods, which will lead to missing true cases of CDI. Missed cases, in turn, can lead to spread of infection in hospitals due to under-treatment," said Dr. Fred C. Tenover, Vice President of Scientific Affairs at Cepheid. "PCR's high sensitivity means you can rule out CDI with high confidence and avoid overtreatment of negative patients2. When this is coupled with upfront clinical evaluation, PCR testing becomes a powerful tool for controlling the spread of CDI."

To learn more, visit www.knowyourpoo.com.

About 'KnowYourPoo.com'
Testing only appropriate patient specimens can have a dramatic impact on an institution's C. difficile rates2, but it takes a team effort to enforce proper testing criteria. KnowYourPoo.com is a new website committed to helping infection control professionals raise awareness and drive compliance at their facilities through creative educational tools and updates on the latest C. diff news and science. We believe when you Know Your Poo, patients win.

About Cepheid
Based in Sunnyvale, Calif., Cepheid is a leading molecular diagnostics company dedicated to improving healthcare by developing, manufacturing, and marketing accurate yet easy-to-use molecular systems and tests. By automating highly complex and time-consuming manual procedures, the company's solutions deliver a better way for institutions of any size to perform sophisticated molecular testing in virtually any setting. Through a strong foundation in innovation, the company is focusing on those applications where accurate, rapid, and actionable test results are needed most, such as managing infectious diseases and cancer. For more information, visit http://www.cepheid.com.

References

  1. Chapin KC, Dickenson RA, Wu F, Andrea SB. 2011. Comparison of five assays for detection of Clostridium difficile toxin. J Mol Diagn 13:395–400. doi:10.1016/j.jmoldx.2011.03.004.
  2. Truong et al. 2017. Real-time electronic tracking of diarrheal episodes and laxative therapy enables verification of Clostridium difficile clinical testing criteria and reduction of Clostridium difficile infection rates. J Clin Microbiol 55:1276–1284.

For Cepheid Media Inquiries :
Darwa Peterson
darwa.peterson@cepheid.com

 

View original content:http://www.prnewswire.com/news-releases/new-idsashea-guidelines-highlight-critical-role-of-pcr-testing-in-c-difficile-diagnosis-300600963.html

SOURCE Cepheid

PR Newswire
www.prnewswire.com

Last updated on: 20/02/2018

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