Video

Nicola Petrosillo, MD: Controversies in C Difficile Prevention

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Nicola Petrosillo, MD, discusses current controversies in C difficile prevention and treatment.

Prevention is the best practice for any disease; however, which preventive practices are the “best” can vary among health care professionals, making opinions and practices diverse. Such is the case with practices to prevent Clostridium difficile infection.

While at the 6th International C diff Awareness Conference and Health EXPO in Philadelphia, Pennsylvania, Nicola Petrosillo, MD, president, SIMPIOS director, Infectious Disease Division, National Institute for Infectious Diseases, “Lazzaro Spallanzani,” in Rome, Italy, discussed current controversies in C difficile prevention and treatment as well as what factors health care providers should take into account.

Interview transcript (modified slightly for readability):

"There are other points in the infection control procedures that are controversial. One of them is how long the patient should be isolated in contact isolation after the end of diarrhea. The guideline says 48 hours—that's okay because after 48 hours, there is no more diarrhea and no more risk for spread of spores in the environment because there is no diarrhea.

The spores can survive up to 4 weeks after the end of diarrhea, and so it's risky in some settings where the patients are very sick and have a lot of comorbidities. If they acquire this infection, they can have an increased risk mortality.

I think that we should consider this measure of 48 hours as very flexible, depending on the setting and patient being treated. In some cases, we should [consider] contact isolation for the [entire] stay in the hospital. In some particular cases, it may be needed in order to avoid the spread to other patients.

The second point that is controversial, according to my opinion, is the screening of asymptomatic carriers. [The] guideline says that asymptomatic carriers should be screened because otherwise, we do not know what to do with them. What should we treat, what should we not treat? Should we put them in contact isolation? This is constant; this is difficult to manage.

There are several studies that indicated that in a particular setting where there were immunocompromised patients like bone marrow transplant patients or elderly people in long-term care facilities, screening of asymptomatic carriers was effective in reducing the rate of C difficile infection in particular conditions, [such as] in outbreak settings and patients with high risk for C difficile infection.

Again, we should be more flexible and try to understand which patients should be screened—when they are asymptomatic (of course), when they are admitted to the hospital, and which patients and in which settings."

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