Use of intravenous tigecycline in patients with severe Clostridium difficile infection: a retrospective observational cohort study

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Abstract

There are only a limited number of antimicrobials for treating severe Clostridium difficile infection (sCDI). Tigecycline shows significant in vitro effect against C. difficile and is approved for management of complicated intra-abdominal infections. Our aim was to analyse the efficacy of tigecycline compared with standard therapy (oral vancomycin plus intravenous metronidazole) in adults treated for sCDI. A retrospective cohort study of such patients hospitalized at our department from January 2014 to December 2015 was performed. Patients receiving tigecycline monotherapy were compared with patients treated with standard therapy alone. Diagnosis and severity of CDI were determined according to guidelines of the European Society of Clinical Microbiology and Infectious Diseases (ESCMID). Primary outcome was clinical recovery, secondary outcomes were in-hospital and 90-day all-cause mortality and relapse, colectomy, and complication rates. Of the 359 patients hospitalized for sCDI, 90 (25.0%) were included, 45 in each group. Patients treated with tigecycline had significantly better outcomes of clinical cure (34/45, 75.6% vs. 24/45, 53.3%; p 0.02), less complicated disease course (13/45, 28.9% vs. 24/45, 53.3%; p 0.02), and less CDI sepsis (7/45, 15.6% vs. 18/45, 40.0%; p 0.009) compared with patients receiving standard therapy. Tigecycline usage was not associated with adverse drug reactions or need for colectomy. Rates of ileus, toxic megacolon, mortality, and relapse were similar between the two groups. Favourable outcomes suggest that tigecycline might be considered as a potential candidate for therapeutic use in cases of sCDI refractory to standard treatment.

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Gergely Szabo, B., Kadar, B., Szidonia Lenart, K., Dezsenyi, B., Kunovszki, P., Fried, K., … Prinz, G. (2016). Use of intravenous tigecycline in patients with severe Clostridium difficile infection: a retrospective observational cohort study. Clinical Microbiology and Infection, 22(12), 990–995. https://doi.org/10.1016/j.cmi.2016.08.017

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