3 years ago

The role of tigecycline in the management of Clostridium difficile infection: a retrospective cohort study

We aimed to compare the outcomes of patients with C.difficile infection (CDI) treated either with tigecycline associated with vancomycin, or with vancomycin alone. Methods This single-centre retrospective cohort study included all adults hospitalized from September 2014 through August 2015 for symptomatic, incident CDI confirmed by polymerase chain reaction for C. difficile toxin in stools. The primary outcome was the rate of favourable outcome, defined as a composite of clinical response (resolution of symptoms without need for additional CDI therapy) and achieving discharge without CDI-related surgery or intensive care; a secondary outcome was CDI recurrence. We constructed a non-parsimonious logistic regression model to calculate a propensity score (PS) for those receiving tigecycline. Results In all, 266 patients were included: 62 patients received both vancomycin and tigecycline, and 204 patients received vancomycin alone. The patients from the two groups were similar regarding demographics and comorbidities but patients in the tigecycline group had a more severe CDI. A favourable outcome in the tigecycline group versus the vancomycin group was found in 50/62 (81%) versus 193/204 (95%). We matched patients receiving tigecycline or not according to the PS and 86 patients (43 pairs) could be matched. The OR for favourable outcome with tigecycline in the matched analysis was 0.92 (95% CI 0.60–1.44; p 0.74). The rate of CDI recurrences was 8/62 (13%) in the tigecycline group versus 39/204 (19%) in the vancomycin group (p 0.2). Conclusion Adding tigecycline to CDI standard therapy did not increase the clinical cure nor reduce the rate of CDI recurrences.

Publisher URL: www.sciencedirect.com/science

DOI: S1198743X17303245

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