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Prognosis of urinary tract infection caused by KPC-producing Klebsiella pneumoniae: the impact of inappropriate empirical treatment.
J Infect. 2019 Jul 02;:
Authors: Rodriguez-Gómez J, Pérez-Nadales E, Gutiérrez-Gutiérrez B, Machuca I, Martinez-Martinez L, Rivera F, Cano A, Castón JJ, Robles JC, la Fuente C, Rodríguez-López F, Rodriguez-Baño J, Torre-Cisneros J, Spanish Network for Research in Infectious Diseases (REIPI), Instituto de Salud Carlos III, Madrid, Spain
Abstract
INTRODUCTION: There is scarce information on the prognosis of urinary tract infections (UTI) caused by KPC carbapenemase-producing Klebsiella pneumoniae (KPC-Kp).
OBJETIVE: To investigate the association between KPC-Kp aetiology and clinical failure and all cause mortality and to explore the impact of inappropriate empirical treatment.
MATERIAL AND METHODS: This is a retrospective observational study of hospitalized patients with UTI due to K. pneumoniae. We explored clinical failure at day 21 and 30-day all-cause mortality using different models of adjusted analysis.
RESULTS: We analyzed 142 episodes of UTI; 46 episodes (32.4%) were due to KPC-Kp and 96 episodes (67.6%) were due to non-KPC-Kp strains (62 wild type and 34 EBSL producer). Clinical failure was more frequent in the KPC-Kp group (41.3% vs. 15.6%, p= 0.001). KPC-Kp aetiology and inappropriate empirical therapy were associated in the non-adjusted analysis with clinical failure. When analysed in separate adjusted models, both were found to be associated; inappropriate empirical treatment (OR 2.51; 95% CI, 1.03-6.12; p = 0.04) and KPC-Kp (OR 2.73; 95% CI, 1.03-7.22; p = 0.04) were associated with increased risk of failure. All-cause 30-day mortality was higher in patients with KPC-Kp UTI (39.1% vs. 15.6%, p = 0.002). Bacteraemia was more frequent in patients with KPC-Kp etiology (23.9% vs. 10.4%; p = 0.034). In both cases, the association was not confirmed in the adjusted analysis.
CONCLUSION: KPC-Kp UTI is associated with higher clinical failure and may be due to an increase in inappropriate empirical treatment.
PMID: 31276705 [PubMed - as supplied by publisher]