• Eddie Grace and Elias B Chahine.
• Sr Care Pharm. 2019 Jan 1; 34 (1): 29-42.

ObjectiveTo provide a review of the classification, epidemiology, risk factors, diagnosis, treatment, and prevention of Clostridioides (Clostridium) difficile (C. difficile) infection (CDI) with an emphasis on longterm care.Data SourcesPubMed and Google Scholar were searched for relevant literature using a combination of the following terms: C. difficile, classification, epidemilogy, risk factors, diagnosis, treatment, prevention, and long-term care. Sources were limited to human data.Study Selection/Data ExtractionThe main article reviewed was the 2017 CDI guidelines of the Infectious Diseases Society of American and the Society for Healthcare Epidemiology of America. Other articles were reviewed for relevance to CDI in long-term care settings.Data SynthesisCDI is associated with significant morbidity and mortality, particularly in older adults. The primary risk factors are advanced age and receipt of antibiotics. Diagnosis is suspected based on signs and symptoms and confirmed by laboratory tests. Vancomycin and fidaxomicin have replaced metronidazole as the drugs of choice for CDI. Fidaxomicin is associated with a lower risk of recurrence than vancomycin. Fecal microbiota transplantation is reserved for patients with multiple recurrences. Bezlotoxumab can be used in addition to standard therapy to prevent CDIs in patients at high risk for recurrence. Infection control strategies and antibiotic stewardship programs are known to reduce the rates of CDIs in institutional settings.ConclusionCDI is largely iatrogenic, and diagnosis is based on clinical presentation and laboratory tests. Treatment options include vancomycin, fidaxomicin, and fecal microbiota transplantation. Prevention centers around infection control and antibiotic stewardship. More research is needed in long-term care settings.

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